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Duqm Refinery

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81-509: Duqm Refinery is an oil refinery at the port town of Duqm in central-eastern Oman , and is expected to have a capacity of 230,000 barrels per day. It is owned and operated by OQ8, a joint venture between OQ , a subsidiary of the Government of Oman, and Kuwait Petroleum International , a subsidiary of Kuwait Petroleum Corporation . In September 2023, Duqm Refinery completed its start-up processes, and planned to begin commercial operations by

162-402: A devolatilization process to separate usable oil from the waste asphaltene material. Certain cracked streams are particularly suitable to produce petrochemicals includes polypropylene, heavier polymers, and block polymers based on the molecular weight and the characteristics of the olefin specie that is cracked from the source feedstock. Oil refineries are large-scale plants, processing about

243-632: A broad range of several applications. Once separated and purified of any contaminants and impurities, the fuel or lubricant can be sold without further processing. Smaller molecules such as isobutane and propylene or butylenes can be recombined to meet specific octane requirements by processes such as alkylation , or more commonly, dimerization . The octane grade of gasoline can also be improved by catalytic reforming , which involves removing hydrogen from hydrocarbons producing compounds with higher octane ratings such as aromatics . Intermediate products such as gasoils can even be reprocessed to break

324-748: A capacity of 940,000 bbl/d (149,000 m /d) but effective run rates have been dramatically lower due to the impact of 20 years of sanctions , and SK Energy 's Ulsan in South Korea with 840,000 bbl/d (134,000 m /d) are the second and third largest, respectively. Prior to World War II in the early 1940s, most petroleum refineries in the United States consisted simply of crude oil distillation units (often referred to as atmospheric crude oil distillation units). Some refineries also had vacuum distillation units as well as thermal cracking units such as visbreakers (viscosity breakers, units to lower

405-800: A few percent sulfur -containing molecules, elemental sulfur is also often produced as a petroleum product. Carbon , in the form of petroleum coke , and hydrogen may also be produced as petroleum products. The hydrogen produced is often used as an intermediate product for other oil refinery processes such as hydrocracking and hydrodesulfurization . Petroleum products are usually grouped into four categories: light distillates (LPG, gasoline, naphtha), middle distillates (kerosene, jet fuel, diesel), heavy distillates, and residuum (heavy fuel oil, lubricating oils, wax, asphalt). These require blending various feedstocks, mixing appropriate additives, providing short-term storage, and preparation for bulk loading to trucks, barges, product ships, and railcars. This classification

486-511: A focus on Christianity , Manicheism , and Zoroastrianism , which all involve sacred texts as a basis, thus encouraging literacy, scholarship, and the spread of ideas. Aristotelian logic was soon included in the curriculum a center for higher education in Nisibis , located east of the Persian border, and was used to enhance the philosophical discussion of theology taking place at the time. The Qur'an ,

567-428: A heavy, long-chained oil into a lighter short-chained one, by various forms of cracking such as fluid catalytic cracking , thermal cracking , and hydrocracking . The final step in gasoline production is the blending of fuels with different octane ratings, vapor pressures , and other properties to meet product specifications. Another method for reprocessing and upgrading these intermediate products (residual oils) uses

648-430: A hundred thousand to several hundred thousand barrels of crude oil a day. Because of the high capacity, many of the units operate continuously , as opposed to processing in batches , at steady state or nearly steady state for months to years. The high capacity also makes process optimization and advanced process control very desirable. Petroleum products are materials derived from crude oil ( petroleum ) as it

729-645: A large amount of steam and cooling water need to have an abundant source of water. Oil refineries, therefore, are often located nearby navigable rivers or on a seashore, nearby a port. Such location also gives access to transportation by river or by sea. The advantages of transporting crude oil by pipeline are evident, and oil companies often transport a large volume of fuel to distribution terminals by pipeline. A pipeline may not be practical for products with small output, and railcars, road tankers, and barges are used. Petrochemical plants and solvent manufacturing (fine fractionating) plants need spaces for further processing of

810-658: A large volume of refinery products, or to mix chemical additives with a product at source rather than at blending terminals. The refining process releases a number of different chemicals into the atmosphere (see AP 42 Compilation of Air Pollutant Emission Factors ) and a notable odor normally accompanies the presence of a refinery. Aside from air pollution impacts there are also wastewater concerns, risks of industrial accidents such as fire and explosion, and noise health effects due to industrial noise . Many governments worldwide have mandated restrictions on contaminants that refineries release, and most refineries have installed

891-462: A number of further chemical processes are integrated into it. For example, light hydrocarbons are steam-cracked in an ethylene plant, and the produced ethylene is polymerized to produce polyethene . To ensure both proper separation and environmental protection, a very low sulfur content is necessary in all but the heaviest products. The crude sulfur contaminant is transformed to hydrogen sulfide via catalytic hydrodesulfurization and removed from

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972-409: A poetic language than the antique Hermetists did, also giving "a greater emphasis on the coniunctio motif", i.e. images of the union of male and female, sun and moon, king and queen etc. "The mystical masters of Islam understood alchemy as a transformative process of the alchemist's psyche. The fire which promoted this transformation was the love of God." According to the bibliographer Ibn al-Nadīm ,

1053-539: A shoreline necklace of refineries, built in the early 20th century before this area was populated, and associated chemical plants are adjacent to urban areas in Richmond , Martinez , Pacheco , Concord , Pittsburg , Vallejo and Benicia , with occasional accidental events that require " shelter in place " orders to the adjacent populations. A number of refineries are located in Sherwood Park, Alberta , directly adjacent to

1134-544: A synopsis of the diverse antique traditions. Thus unifying their meaning, the Islamic scholars arrived at the idea, that the secret and aim of alchemy were the achievement of " one inner psychic experience, namely the God-image" and that stone, water, prima materia etc. were "all aspects of the inner mystery through which the alchemist unites with the transcendent God". Secondly, they added "a passionate feeling tone" by using much more

1215-493: Is a substance that is hot and dry, as shown in the table. According to Jābir, in each metal two of these qualities were interior and two were exterior. For example, lead was externally cold and dry but internally hot and moist; gold, on the other hand, was externally hot and moist but internally cold and dry. He believed that metals were formed in the Earth by fusion of sulfur (giving the hot and dry qualities) with mercury (giving

1296-433: Is based on the way crude oil is distilled and separated into fractions. Over 6,000 items are made from petroleum waste by-products, including fertilizer , floor coverings , perfume , insecticide , petroleum jelly , soap , vitamin capsules . The image below is a schematic flow diagram of a typical oil refinery that depicts the various unit processes and the flow of intermediate product streams that occurs between

1377-408: Is cooled by exchanging heat with the incoming crude oil. All of the fractions (i.e., the overhead naphtha, the sidecuts, and the bottom residue) are sent to intermediate storage tanks before being processed further. A party searching for a site to construct a refinery or a chemical plant needs to consider the following issues: Factors affecting site selection for oil refinery: Refineries that use

1458-497: Is found under different names, mainly as Senior or as Zadith. His "Silvery Water" e.g. was reprinted as "The Chemical Tables of Senior Zadith" in the collection of alchemical texts: Theatrum Chemicum , and commented upon by Pseudo Aquinas in Aurora Consurgens . They both also give his (modified) image of the sage holding a chemical table (see image above). Al-Tughrai was an 11th–12th century Persian physician . whose work

1539-491: Is more accurately termed " Chrysopoeia " — was ordinarily viewed in the late seventeenth century as synonymous with or as a subset of chemistry." He therefore proposes that the early spelling of chemistry as "chymistry" refers to a unified science including both alchemy and early chemistry. Principe goes on to argue that, "[a]ll their chymical activities were unified by a common focus on the analysis, synthesis, transformation, and production of material substances." Therefore, there

1620-466: Is not a defined contrast between the two fields until the early 18th century. Though Principe's discussion is centered on the Western practice of alchemy and chemistry, this argument is supported in the context of Islamic science as well when considering the similarity in methodology and Aristotelian inspirations, as noted in other sections of this article. This distinction between alchemy and early chemistry

1701-552: Is one that lies predominantly in semantics, though with an understanding of previous uses of the words, we can better understand the historical lack of distinct connotations regarding the terms despite their altered connotations in modern contexts. The transmission of these sciences throughout the Eastern and Western hemispheres is also important to understand when distinguishing the sciences of both regions. The beginnings of cultural, religious, and scientific diffusion of information between

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1782-424: Is processed in oil refineries . The majority of petroleum is converted to petroleum products, which includes several classes of fuels. Oil refineries also produce various intermediate products such as hydrogen , light hydrocarbons, reformate and pyrolysis gasoline . These are not usually transported but instead are blended or processed further on-site. Chemical plants are thus often adjacent to oil refineries or

1863-413: Is removed from the distillation column by a pumparound system as shown in the diagram below. As shown in the flow diagram, the overhead distillate fraction from the distillation column is naphtha. The fractions removed from the side of the distillation column at various points between the column top and bottom are called sidecuts . Each of the sidecuts (i.e., the kerosene, light gas oil, and heavy gas oil)

1944-475: Is then processed further in the other refinery processing units. The CDU is often referred to as the atmospheric distillation unit because it operates at slightly above atmospheric pressure. Below is a schematic flow diagram of a typical crude oil distillation unit. The incoming crude oil is preheated by exchanging heat with some of the hot, distilled fractions and other streams. It is then desalted to remove inorganic salts (primarily sodium chloride). Following

2025-626: The Allies , during the Oil Campaign of World War II . Another close contender for the title of hosting the world's oldest oil refinery is Salzbergen in Lower Saxony , Germany. Salzbergen's refinery was opened in 1860. At one point, the refinery in Ras Tanura , Saudi Arabia owned by Saudi Aramco was claimed to be the largest oil refinery in the world. For most of the 20th century, the largest refinery

2106-605: The Edeleanu process . This increased the refining efficiency compared to pure fractional distillation and allowed a massive development of the refining plants. Successively, the process was implemented in France, Germany, U.S. and in a few decades became worldwide spread. In 1910 Edeleanu founded "Allgemeine Gesellschaft für Chemische Industrie" in Germany, which, given the success of the name, changed to Edeleanu GmbH, in 1930. During Nazi's time,

2187-617: The Latinized name "Geber". In 13th-century Europe an anonymous writer, usually referred to as pseudo-Geber , started to produce alchemical and metallurgical writings under this name. Abū Bakr ibn Zakariyā’ al-Rāzī (Latin: Rhazes), born around 865 in Rayy , was mainly known as a Persian physician. He wrote a number of alchemical works, including the Sirr al-asrār (Latin: Secretum secretorum; English: Secret of Secrets .) Muḥammad ibn Umayl al-Tamīmī

2268-612: The Masabih al-hikma wa-mafatih al-rahma (The Lanterns of Wisdom and the Keys of Mercy) is one of the earliest works of material sciences. Al-Jildaki was an Egyptian alchemist who urged in his book the need for experimental chemistry and mentioned many experiments Kanz al-ikhtisas fi ma'rifat al-khawas by Abu 'l-Qasim Aydamir al-Jildaki . Jābir analyzed each Aristotelian element in terms of Aristotle 's four basic qualities of hotness , coldness , dryness , and moistness . For example, fire

2349-682: The ancient Egyptian word kemi , meaning black. After the fall of the Western Roman Empire and the Islamic conquest of Roman Egypt , the focus of alchemical development moved to the Caliphate and the Islamic civilization . In considering Islamic sciences as a distinct, local practice, it is important to define words such as "Arabic," "Islamic," "alchemy," and "chemistry" in order to gain an understanding of what these terms mean historically. This may also help to clear up any misconceptions regarding

2430-493: The hydrocarbons to be separated by distillation . Since the lighter liquid products are in great demand for use in internal combustion engines, a modern refinery will convert heavy hydrocarbons and lighter gaseous elements into these higher-value products. Oil can be used in a variety of ways because it contains hydrocarbons of varying molecular masses , forms and lengths such as paraffins , aromatics , naphthenes (or cycloalkanes ), alkenes , dienes , and alkynes . While

2511-416: The octane rating of their product gasoline, lower the sulfur content of their diesel fuel and home heating fuels to comply with environmental regulations and comply with environmental air pollution and water pollution requirements. In the 19th century, refineries in the U.S. processed crude oil primarily to recover the kerosene . There was no market for the more volatile fraction, including gasoline, which

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2592-422: The petrochemical industry with increased risk of various cancers, such as mesothelioma . It also found reduced risks of other cancers, such as stomach and rectal . The systematic review did mention that several of the associations were not due to factors directly related to the petroleum industry, rather were related to lifestyle factors such as smoking . Evidence for adverse health effects for nearby residents

2673-408: The vacuum distillation unit may also produce fractions that can be refined into end products such as spindle oil used in the textile industry, light machine oil, motor oil, and various waxes. The crude oil distillation unit (CDU) is the first processing unit in virtually all petroleum refineries. The CDU distills the incoming crude oil into various fractions of different boiling ranges, each of which

2754-399: The viscosity of the oil). All of the many other refining processes discussed below were developed during the war or within a few years after the war. They became commercially available within 5 to 10 years after the war ended and the worldwide petroleum industry experienced very rapid growth. The driving force for that growth in technology and in the number and size of refineries worldwide was

2835-617: The 12th century. In the Northern Song dynasty (960–1127), a workshop called the "Fierce Oil Workshop", was established in the city of Kaifeng to produce refined oil for the Song military as a weapon. The troops would then fill iron cans with refined oil and throw them toward the enemy troops, causing a fire – effectively the world's first " fire bomb ". The workshop was one of the world's earliest oil refining factories where thousands of people worked to produce Chinese oil-powered weaponry. Prior to

2916-844: The 1800s, primarily producing kerosene for oil lamps. In the early twentieth century, the introduction of the internal combustion engine and its use in automobiles created a market for gasoline that was the impetus for fairly rapid growth of the petroleum industry. The early finds of petroleum like those in Ontario and Pennsylvania were soon outstripped by large oil "booms" in Oklahoma , Texas and California . Samuel Kier established America's first oil refinery in Pittsburgh on Seventh Avenue near Grant Street, in 1853. Polish pharmacist and inventor Ignacy Łukasiewicz established an oil refinery in Jasło , then part of

2997-570: The Austro-Hungarian Empire (now in Poland ) in 1854. The first large refinery opened at Ploiești , Romania, in 1856–1857. It was in Ploiesti that, 51 years later, in 1908, Lazăr Edeleanu , a Romanian chemist of Jewish origin who got his PhD in 1887 by discovering amphetamine , invented, patented and tested on industrial scale the first modern method of liquid extraction for refining crude oil,

3078-519: The City of Edmonton , which has a population of over 1,000,000 residents. NIOSH criteria for occupational exposure to refined petroleum solvents have been available since 1977. Modern petroleum refining involves a complicated system of interrelated chemical reactions that produce a wide variety of petroleum-based products. Many of these reactions require precise temperature and pressure parameters.   The equipment and monitoring required to ensure

3159-647: The Iberian Peninsula and North Africa to the Indus valley and from southern Arabia to the Caspian Sea - that is, the region covered for most of that period by what we call Islamic civilization, and in which the results of the activities referred to were for the most part expressed in the Arabic language." This definition of Arabic science provides a sense that there are many distinguishing factors to contrast with science of

3240-527: The Islamic tradition differed greatly. While the motives differed in some ways, as did the calculations, the practice and development of alchemy and chemistry was similar given the contemporaneous nature of the fields and the ability with which scientists could transmit their beliefs. Marie-Louise von Franz describes in her introduction to Ibn Umail 's "Book of the Explanation of the Symbols — Kitāb Ḥall ar-Rumūz"

3321-564: The Roll ), Kitāb Waṣīyatihi ilā bnihi fī-ṣ-ṣanʿa ( The Book of his Testament to his Son about the Craft ), and Firdaws al-ḥikma ( The Paradise of Wisdom ), but again, these works may be pseudepigraphical . Jābir ibn Ḥayyān (Arabic/Persian: جابر بن حیان , died c. 806−816), is the supposed author of an enormous number and variety of works in Arabic often called the Jabirian corpus. Popularly known as

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3402-578: The U.S. from 1976 until 2014 when the small Dakota Prairie Refinery in North Dakota began operation. More than half the refineries that existed in 1981 are now closed due to low utilization rates and accelerating mergers. As a result of these closures total US refinery capacity fell between 1981 and 1995, though the operating capacity stayed fairly constant in that time period at around 15,000,000 barrels per day (2,400,000 m /d). Increases in facility size and improvements in efficiencies have offset much of

3483-522: The Western and Eastern societies began with the successful conquests of Alexander the Great (334-323 B.C). By establishing territory throughout the East, Alexander the Great allowed greater communication between the two hemispheres that would continue throughout history. A thousand years later, those Asian territories conquered by Alexander the Great, such as Iraq and Iran , became a center of religious movements with

3564-504: The Western hemisphere regarding physical location, culture, and language, though there are also several similarities in the goals pursued by scientists of the Middle Ages, and in the origins of thinking from which both were derived. Lawrence Principe describes the relationship between alchemy and chemistry in his article entitled, "Alchemy Restored," in which he states, "The search for metallic transmutation — what we call "alchemy" but that

3645-426: The cold and moist.) These elements, mercury and sulfur, should be thought of as not the ordinary elements but ideal, hypothetical substances. Which metal is formed depends on the purity of the mercury and sulfur and the proportion in which they come together. The later alchemist al-Rāzī (c. 865–925) followed Jābir's mercury-sulfur theory, but added a third, salty, component. Thus, Jābir theorized, by rearranging

3726-541: The company was bought by the Deutsche Erdöl-AG and Edeleanu, being of Jewish origin, moved back to Romania. After the war, the trademark was used by the successor company EDELEANU Gesellschaft mbH Alzenau (RWE) for many petroleum products, while the company was lately integrated as EDL in the Pörner Group . The Ploiești refineries, after being taken over by Nazi Germany , were bombed in the 1943 Operation Tidal Wave by

3807-555: The construction of new refineries may have also contributed to rising fuel prices in the United States. Additionally, many refineries (more than 100 since the 1980s) have closed due to obsolescence and/or merger activity within the industry itself. Environmental and safety concerns mean that oil refineries are sometimes located some distance away from major urban areas. Nevertheless, there are many instances where refinery operations are close to populated areas and pose health risks. In California's Contra Costa County and Solano County ,

3888-446: The contributions of Islamic alchemy as follows: In the 7th to 8th century, Islamic scholars were mainly concerned with translating ancient Hermetic - Gnostic texts without changing them. Gradually they began "'confronting' their content with the Islamic religion" and began "to think independently and experiment themselves in the realm of alchemy". Thus they added "an emphasis on the monotheistic outlook" (tawḥīd) and more and more creating

3969-667: The crude oil and depending on the demands of the market, refineries can produce different shares of petroleum products. The largest share of oil products is used as "energy carriers", i.e. various grades of fuel oil and gasoline . These fuels include or can be blended to give gasoline, jet fuel , diesel fuel , heating oil , and heavier fuel oils. Heavier (less volatile ) fractions can also be used to produce asphalt , tar , paraffin wax , lubricating and other heavy oils. Refineries also produce other chemicals , some of which are used in chemical processes to produce plastics and other useful materials. Since petroleum often contains

4050-487: The desalter, the crude oil is further heated by exchanging heat with some of the hot, distilled fractions and other streams. It is then heated in a fuel-fired furnace (fired heater) to a temperature of about 398 °C and routed into the bottom of the distillation unit. The cooling and condensing of the distillation tower overhead is provided partially by exchanging heat with the incoming crude oil and partially by either an air-cooled or water-cooled condenser. Additional heat

4131-582: The end of the year. 19°41′05″N 57°40′59″E  /  19.68459°N 57.68300°E  / 19.68459; 57.68300 Oil refinery An oil refinery or petroleum refinery is an industrial process plant where petroleum (crude oil) is transformed and refined into products such as gasoline (petrol), diesel fuel , asphalt base , fuel oils , heating oil , kerosene , liquefied petroleum gas and petroleum naphtha . Petrochemical feedstock like ethylene and propylene can also be produced directly by cracking crude oil without

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4212-443: The equipment needed to comply with the requirements of the pertinent environmental protection regulatory agencies. In the United States, there is strong pressure to prevent the development of new refineries, and no major refinery has been built in the country since Marathon's Garyville, Louisiana facility in 1976. However, many existing refineries have been expanded during that time. Environmental restrictions and pressure to prevent

4293-451: The expansion of the Islamic empire was an important factor in diminishing political barriers between such areas, there was still a wide range of religions, beliefs, and philosophies that could move freely and be translated throughout the regions. This development made way for contributions to be made on behalf of the East towards the Western conception of sciences such as alchemy. While this transmission of information and practices allowed for

4374-425: The father of chemistry, Jabir's works contain the oldest known systematic classification of chemical substances, and the oldest known instructions for deriving an inorganic compound ( sal ammoniac or ammonium chloride ) from organic substances (such as plants, blood, and hair) by chemical means. Some Arabic Jabirian works (e.g., the "Book of Mercy", and the "Book of Seventy") were later translated into Latin under

4455-519: The first Muslim alchemist was Khālid ibn Yazīd , who is said to have studied alchemy under the Christian Marianos of Alexandria . The historicity of this story is not clear; according to M. Ullmann, it is a legend. According to Ibn al-Nadīm and Ḥajjī Khalīfa , he is the author of the alchemical works Kitāb al-kharazāt ( The Book of Pearls ), Kitāb al-ṣaḥīfa al-kabīr ( The Big Book of the Roll ), Kitāb al-ṣaḥīfa al-saghīr ( The Small Book of

4536-520: The further development of the field, and though both were inspired by Aristotelian logic and Hellenic philosophies , as well as by mystical aspects it is also important to note that cultural and religious boundaries remained. The mystical and religious elements discussed previously in the article distinguished Islamic alchemy from that of its Western counterpart, given that the West had predominantly Christian ideals on which to base their beliefs and results, while

4617-412: The growing demand for automotive gasoline and aircraft fuel. In the United States, for various complex economic and political reasons, the construction of new refineries came to a virtual stop in about the 1980s. However, many of the existing refineries in the United States have revamped many of their units and/or constructed add-on units in order to: increase their crude oil processing capacity, increase

4698-514: The highly automated and technically advanced nature of modern petroleum refineries, nearly all processes are contained within engineering controls and represent a substantially decreased risk of exposure to workers compared to earlier times. However, certain situations or work tasks may subvert these safety mechanisms, and expose workers to a number of chemical (see table above) or physical (described below) hazards. Examples of these scenarios include: A 2021 systematic review associated working in

4779-463: The holy book of Islam, became an important source of "theology, morality, law, and cosmology," in what David C. Lindberg describes as "the centerpiece of Islamic education." After the death of Muhammad in 632, Islam was extended throughout the Arabian peninsula, parts of Byzantium, Persia, Syria, Egypt, and Palestine by means of military conquest, solidifying the region as a predominantly Muslim one. While

4860-542: The hundreds of different hydrocarbon molecules in crude oil are separated in a refinery into components that can be used as fuels , lubricants , and feedstocks in petrochemical processes that manufacture such products as plastics , detergents , solvents , elastomers , and fibers such as nylon and polyesters . Petroleum fossil fuels are burned in internal combustion engines to provide power for ships , automobiles , aircraft engines , lawn mowers , dirt bikes , and other machines. Different boiling points allow

4941-480: The inlet crude oil feedstock and the final end products. The diagram depicts only one of the literally hundreds of different oil refinery configurations. The diagram also does not include any of the usual refinery facilities providing utilities such as steam, cooling water, and electric power as well as storage tanks for crude oil feedstock and for intermediate products and end products. There are many process configurations other than that depicted above. For example,

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5022-609: The late Northern Wei dynasty , the Chinese geographer, writer and politician Li Daoyuan introduced the process of refining oil into various lubricants in his famous work Commentary on the Water Classic . Crude oil was often distilled by Persian chemists , with clear descriptions given in handbooks such as those of Muhammad ibn Zakarīya Rāzi ( c.  865–925 ). The streets of Baghdad were paved with tar , derived from petroleum that became accessible from natural fields in

5103-411: The less profitable refineries. Raw or unprocessed crude oil is not generally useful in industrial applications, although "light, sweet" (low viscosity, low sulfur ) crude oil has been used directly as a burner fuel to produce steam for the propulsion of seagoing vessels. The lighter elements, however, form explosive vapors in the fuel tanks and are therefore hazardous, especially in warships . Instead,

5184-415: The lost physical capacity of the industry. In 1982 (the earliest data provided), the United States operated 301 refineries with a combined capacity of 17.9 million barrels (2,850,000 m ) of crude oil each calendar day. In 2010, there were 149 operable U.S. refineries with a combined capacity of 17.6 million barrels (2,800,000 m ) per calendar day. By 2014 the number of refinery had reduced to 140 but

5265-436: The molecules in crude oil include different atoms such as sulfur and nitrogen, the hydrocarbons are the most common form of molecules, which are molecules of varying lengths and complexity made of hydrogen and carbon atoms , and a small number of oxygen atoms. The differences in the structure of these molecules account for their varying physical and chemical properties , and it is this variety that makes crude oil useful in

5346-753: The need of using refined products of crude oil such as naphtha. The crude oil feedstock has typically been processed by an oil production plant . [1] There is usually an oil depot at or near an oil refinery for the storage of incoming crude oil feedstock as well as bulk liquid products. In 2020, the total capacity of global refineries for crude oil was about 101.2 million barrels per day. Oil refineries are typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units, such as distillation columns. In many ways, oil refineries use many different technologies and can be thought of as types of chemical plants . Since December 2008,

5427-482: The nineteenth century, petroleum was known and utilized in various fashions in Babylon , Egypt , China , Philippines , Rome and Azerbaijan . However, the modern history of the petroleum industry is said to have begun in 1846 when Abraham Gessner of Nova Scotia , Canada devised a process to produce kerosene from coal. Shortly thereafter, in 1854, Ignacy Łukasiewicz began producing kerosene from hand-dug oil wells near

5508-432: The possible differences between alchemy and early chemistry in the context of medieval times. As A. I. Sabra writes in his article entitled, "Situating Arabic Science: Location versus Essence," "the term Arabic (or Islamic) science denotes the scientific activities of individuals who lived in a region that roughly extended chronologically from the eighth century A.D. to the beginning of the modern era, and geographically from

5589-460: The product stream via amine gas treating . Using the Claus process , hydrogen sulfide is afterward transformed to elementary sulfur to be sold to the chemical industry. The rather large heat energy freed by this process is directly used in the other parts of the refinery. Often an electrical power plant is combined into the whole refinery process to take up the excess heat. According to the composition of

5670-455: The proper progression of these processes is complex, and has evolved through the advancement of the scientific field of petroleum engineering . The wide array of high pressure and/or high temperature reactions, along with the necessary chemical additives or extracted contaminants, produces an astonishing number of potential health hazards to the oil refinery worker.  Through the advancement of technical chemical and petroleum engineering,

5751-834: The qualities of one metal, a different metal would result. By this reasoning, the search for the philosopher's stone was introduced to Western alchemy. Jābir developed an elaborate numerology whereby the root letters of a substance's name in Arabic, when treated with various transformations, held correspondences to the element's physical properties. Al-Rāzī mentions the following chemical processes: distillation , calcination , solution , evaporation , crystallization , sublimation , filtration , amalgamation , and ceration (a process for making solids pasty or fusible.) Some of these operations (calcination, solution, filtration, crystallization, sublimation and distillation) are also known to have been practiced by pre-Islamic Alexandrian alchemists. In his Secretum secretorum , Al-Rāzī mentions

5832-615: The region. In the 9th century, oil fields were exploited in the area around modern Baku , Azerbaijan. These fields were described by the Arab geographer Abu al-Hasan 'Alī al-Mas'ūdī in the 10th century, and by Marco Polo in the 13th century, who described the output of those wells as hundreds of shiploads. Arab and Persian chemists also distilled crude oil in order to produce flammable products for military purposes. Through Islamic Spain , distillation became available in Western Europe by

5913-604: The time, reports of the health impacts of working in an oil refinery can be found as early as the 1800s. For instance, an explosion in a Chicago refinery killed 20 workers in 1890. Since then, numerous fires, explosions, and other significant events have from time to time drawn the public's attention to the health of oil refinery workers. Such events continue in the 21st century, with explosions reported in refineries in Wisconsin and Germany in 2018. However, there are many less visible hazards that endanger oil refinery workers. Given

5994-458: The total capacity increased to 18.02 million barrels (2,865,000 m ) per calendar day. Indeed, in order to reduce operating costs and depreciation, refining is operated in fewer sites but of bigger capacity. In 2009 through 2010, as revenue streams in the oil business dried up and profitability of oil refineries fell due to lower demand for product and high reserves of supply preceding the economic recession , oil companies began to close or sell

6075-601: The town of Krosno , Poland . Romania was registered as the first country in world oil production statistics, according to the Academy Of World Records . In North America, the first oil well was drilled in 1858 by James Miller Williams in Oil Springs, Ontario , Canada. In the United States, the petroleum industry began in 1859 when Edwin Drake found oil near Titusville , Pennsylvania . The industry grew slowly in

6156-420: The vast majority of these processes are automated and enclosed, thus greatly reducing the potential health impact to workers.   However, depending on the specific process in which a worker is engaged, as well as the particular method employed by the refinery in which he/she works, significant health hazards remain. Although occupational injuries in the United States were not routinely tracked and reported at

6237-588: The world's largest oil refinery has been the Jamnagar Refinery owned by Reliance Industries , located in Gujarat , India, with a processing capacity of 1.24 million barrels (197,000 m ) per day. Oil refineries are an essential part of the petroleum industry's downstream sector. The Chinese were among the first civilizations to refine oil. As early as the first century, the Chinese were refining crude oil for use as an energy source. Between 512 and 518, in

6318-615: Was a 10th-century Egyptian alchemist of the symbolic-mystical branch. One of his surviving works is Kitāb al-māʿ al-waraqī wa-l-arḍ al-najmiyya ( The Book on Silvery Water and Starry Earth ). This work is a commentary on his poem, the Risālat al-shams ilā al-hilāl ( The Epistle of the Sun to the Crescent Moon ) and contains numerous quotations from ancient authors. Ibn Umayl had important influence on medieval Western (Latin) alchemy , where his work

6399-574: Was also weak, with the evidence primarily centering around neighborhoods in developed countries . Alchemy and chemistry in Islam Alchemy in the medieval Islamic world refers to both traditional alchemy and early practical chemistry (the early chemical investigation of nature in general) by Muslim scholars in the medieval Islamic world . The word alchemy was derived from the Arabic word كيمياء or kīmiyāʾ and may ultimately derive from

6480-503: Was considered waste and was often dumped directly into the nearest river. The invention of the automobile shifted the demand to gasoline and diesel, which remain the primary refined products today. Today, national and state legislation require refineries to meet stringent air and water cleanliness standards. In fact, oil companies in the U.S. perceive obtaining a permit to build a modern refinery to be so difficult and costly that no new refineries were built (though many have been expanded) in

6561-810: Was the Abadan Refinery in Iran . This refinery suffered extensive damage during the Iran–Iraq War . Since 25 December 2008, the world's largest refinery complex is the Jamnagar Refinery Complex, consisting of two refineries side by side operated by Reliance Industries Limited in Jamnagar, India with a combined production capacity of 1,240,000 barrels per day (197,000 m /d). PDVSA 's Paraguaná Refinery Complex in Paraguaná Peninsula , Venezuela , with

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