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Lemont Refinery
Lemont Refinery is an oil refinery in Romeoville, Illinois owned and operated by Citgo Petroleum Corporation. Originally constructed in the early 1920s, it was reconstructed between 1968 and 1970 by its then owner Union Oil and has a current crude processing capacity of 177,000 barrels per day. The refinery was the site of the 1984 Romeoville petroleum refinery disaster in which 17 people were killed. The facility includes the following major units: one atmospheric distillation unit, one vacuum distillation unit, one fluid catalytic cracking unit, two catalytic reforming units, one alkylation unit, hydrodesulfurization units, and two coker unit A coker or coker unit is an oil refinery processing unit that converts the residual oil from the vacuum distillation column into low molecular weight hydrocarbon gases, naphtha, light and heavy gas oils, and petroleum coke. The process thermally c ...s. References Energy infrastructure in Illinois Oil refineries in the United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romeoville, Illinois
Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the southwest suburban area of Chicago near Interstate 55 and Interstate 355. Geography According to the 2010 census, Romeoville has a total area of , of which (or 98.3%) is land and (or 1.7%) is water. Climate Romeoville is home to a National Weather Service forecast office, although bulletins issued by said office begin, "The National Weather Service in Chicago..." Demographics 2020 census ''Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.'' Economy Romeoville is home to over 600 businesses. In 2013, the village won a Gold Medal from the International Economic Development Council and Atlas Integrated in the High Performa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citgo
Citgo Petroleum Corporation (or Citgo, stylized as CITGO) is a United States–based refiner, transporter and marketer of transportation fuels, lubricants, petrochemicals and other industrial products. Headquartered in the Energy Corridor area of Houston, it is majority-owned by PDVSA, a state-owned company of the Venezuelan government (although due to U.S. sanctions in 2019, they no longer economically benefit from Citgo). History Cities Service period The company traces its heritage back to the early 1900s and oil entrepreneur Henry Latham Doherty. After quickly climbing the ladder of success in the manufactured gas and electric utility world, Doherty in 1910 created Cities Service Company to supply gas and electricity to small public utilities. He began by acquiring gas-producing properties in the mid-continent and southwest. The company then developed a pipeline system, tapping dozens of gas pools. To make this gas available to consumers, Doherty moved to acquire d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Refinery
An oil refinery or petroleum refinery is an industrial processes, industrial process Factory, plant where petroleum (crude oil) is transformed and refining, refined into useful products such as gasoline (petrol), diesel fuel, asphalt, asphalt base, fuel oils, heating oil, kerosene, liquefied petroleum gas and petroleum naphtha. Petrochemicals feedstock like ethylene and propene, propylene can also be produced directly by Cracking (chemistry), cracking crude oil without 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. 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 f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unocal Corporation
Union Oil Company of California, and its holding company Unocal Corporation, together known as Unocal was a major petroleum explorer and marketer in the late 19th century, through the 20th century, and into the early 21st century. It was headquartered in El Segundo, California, United States. Unocal was involved in domestic and global energy projects. Unocal was one of the key players in the CentGas consortium, which attempted to build the Trans-Afghanistan Pipeline to run from the Caspian area, through Afghanistan, to the Indian Ocean, at a time after the Taliban siege of Kabul in 1996. On August 10, 2005, Unocal merged its entire upstream petroleum business with Chevron and became a wholly-owned subsidiary. Unocal then ceased operations as an independent company, but continues to conduct many operations as Union Oil Company of California, a Chevron company. History The Union Oil Company of California was founded on October 17, 1890, in Santa Paula, California, by Ly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1984 Romeoville Petroleum Refinery Disaster
On July 23, 1984, an explosion and fire took place at a Union Oil Lemont Refinery in Romeoville, Illinois, outside Chicago, killing 17 people and causing major property damage. The explosive force propelled the upper portion of the vessel a distance of from its original location, while the base remained at the center of the resultant fire. Structure The tower was constructed from thick plates of type ASTM A516 Grade 70 steel per ASME Section VIII pressure vessel code. The vessel was tall, in diameter. History Beginning in 1970 the vessel served as an amine absorber tower, used to strip hydrogen sulfide from a process stream of propane and butane. In 1974, plant inspection identified hydrogen blisters and laminations in the shell of the vessel, and the refinery replaced several meters of the lower shell section using manual metal arc welding. After welding, no post weld heat treatment (PWHT) was performed. PWHT is a vital process that reduces residual stresses formed duri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Distillation Of Crude Oil
Refining of crude oils essentially consists of primary separation processes and secondary conversion processes. The petroleum refining process is the separation of the different hydrocarbons present in the crude oil into useful fractions and the conversion of some of the hydrocarbons into products having higher quality performance. Atmospheric and vacuum distillation of crude oils are the main primary separation processes producing various straight runproducts, e.g., gasoline to lube oils/vacuum gas oils. Distillation of crude oil is typically performed first under atmospheric pressure and then under a vacuum. Low boiling fractions usually vaporize below 400°C at atmospheric pressure without cracking the hydrocarbon compounds. Therefore, all the low boiling fractions of crude oil are separated by atmospheric distillation. A crude distillation unit (CDU) consists of pre-flash distillation column. The petroleum products obtained from the distillation process are light, medium, and heav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacuum Distillation
Vacuum distillation is distillation performed under reduced pressure, which allows the purification of compounds not readily distilled at ambient pressures or simply to save time or energy. This technique separates compounds based on differences in their boiling points. This technique is used when the boiling point of the desired compound is difficult to achieve or will cause the compound to decompose. Reduced pressures decrease the boiling point of compounds. The reduction in boiling point can be calculated using a temperature-pressure nomograph using the Clausius–Clapeyron relation. Laboratory-scale applications Compounds with a boiling point lower than 150 °C typically are distilled at ambient pressure. For samples with high boiling points, short-path distillation apparatus is commonly employed. This technique is amply illustrated in Organic Synthesis. Rotary evaporation Rotary evaporation is a common technique used in laboratories to concentrate or isolate a compo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluid Catalytic Cracking
Fluid Catalytic Cracking (FCC) is the conversion process used in petroleum refineries to convert the high-boiling point, high-molecular weight hydrocarbon fractions of petroleum (crude oils) into gasoline, olefinic gases, and other petroleum products. The cracking of petroleum hydrocarbons was originally done by thermal cracking, now virtually replaced by catalytic cracking, which yields greater volumes of high octane rating gasoline; and produces by-product gases, with more carbon-carbon double bonds (i.e. olefins), that are of greater economic value than the gases produced by thermal cracking. The feedstock to the FCC conversion process usually is heavy gas oil (HGO), which is that portion of the petroleum (crude oil) that has an initial boiling-point temperature of or higher, at atmospheric pressure, and that has an average molecular weight that ranges from about 200 to 600 or higher; heavy gas oil also is known as “heavy vacuum gas oil” (HVGO). In the fluid catalytic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalytic Reforming
Catalytic reforming is a chemical process used to convert petroleum refinery naphthas distilled from crude oil (typically having low octane ratings) into high-octane liquid products called reformates, which are premium blending stocks for high-octane gasoline. The process converts low-octane linear hydrocarbons (paraffins) into branched alkanes (isoparaffins) and cyclic naphthenes, which are then partially dehydrogenated to produce high-octane aromatic hydrocarbons. The dehydrogenation also produces significant amounts of byproduct hydrogen gas, which is fed into other refinery processes such as hydrocracking. A side reaction is hydrogenolysis, which produces light hydrocarbons of lower value, such as methane, ethane, propane and butanes. In addition to a gasoline blending stock, reformate is the main source of aromatic bulk chemicals such as benzene, toluene, xylene and ethylbenzene which have diverse uses, most importantly as raw materials for conversion into plas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkylation Unit
An alkylation unit (alky) is one of the conversion processes used in Oil industry, petroleum refineries. It is used to convert isobutane and low-molecular-weight alkenes (primarily a mixture of propene and butene) into alkylate, a high octane gasoline component. The process occurs in the presence of an acid such as sulfuric acid (H2SO4) or hydrofluoric acid (HF) as catalyst. Depending on the acid used, the unit is called a sulfuric acid alkylation unit (SAAU) or hydrofluoric acid alkylation unit (HFAU). In short, the alky produces a high-quality gasoline blending stock by combining two shorter hydrocarbon molecules into one longer chain gasoline-range molecule by mixing isobutane with a light olefin such as propylene or butylene from the refinery's fluid catalytic cracking unit (FCCU) in the presence of an acid catalyst. Since crude oil generally contains only 10-40% of hydrocarbon constituents in the gasoline range, refineries typically use an FCCU to convert high molecular weight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrodesulfurization
Hydrodesulfurization (HDS) is a catalytic chemical process widely used to remove sulfur (S) from natural gas and from refined petroleum products, such as gasoline or petrol, jet fuel, kerosene, diesel fuel, and fuel oils. The purpose of removing the sulfur, and creating products such as ultra-low-sulfur diesel, is to reduce the sulfur dioxide () emissions that result from using those fuels in automotive vehicles, aircraft, railroad locomotives, ships, gas or oil burning power plants, residential and industrial furnaces, and other forms of fuel combustion. Another important reason for removing sulfur from the naphtha streams within a petroleum refinery is that sulfur, even in extremely low concentrations, poisons the noble metal catalysts (platinum and rhenium) in the catalytic reforming units that are subsequently used to upgrade the octane rating of the naphtha streams. The industrial hydrodesulfurization processes include facilities for the capture and removal of the re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coker Unit
A coker or coker unit is an oil refinery processing unit that converts the residual oil from the vacuum distillation column into low molecular weight hydrocarbon gases, naphtha, light and heavy gas oils, and petroleum coke. The process thermally cracks the long chain hydrocarbon molecules in the residual oil feed into shorter chain molecules leaving behind the excess carbon in the form of petroleum coke. This petroleum coke can either be fuel grade (high in sulphur and metals) or anode grade (low in sulphur and metals). The raw coke from the coker is often referred to as green coke. In this context, "green" means unprocessed. The further processing of green coke by calcining in a rotary kiln removes residual volatile hydrocarbons from the coke. The calcined petroleum coke can be further processed in an anode baking oven in order to produce anode coke of the desired shape and physical properties. The anodes are mainly used in the aluminium and steel industry. Types of coker un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
