Processes within oil refineries or chemical processing plants that remove hydrogen sulfide are referred to as "sweetening" processes because the odor of the processed products is improved by the absence of hydrogen sulfide. It is a common unit process used in refineries, and is also used in petrochemical plants, natural gas processing plants and other industries. "Amine gas treating, also known as gas sweetening and acid gas removal, refers to a group of processes that use aqueous solutions of various alkylamines (commonly referred to simply as amines) to remove hydrogen sulfide (H2S) and carbon dioxide (CO2) from gases. This PFD sample was redesigned from the Wikimedia Commons file: AmineTreating.png. It is used in oil refineries and chemical plants. This process flow diagram (PFD) example shows an amine treating system for the removal of gaseous hydrogen sulfide from gas streams. The process flow diagram (PFD) example "Crude oil distillation" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park. Īn oil refinery is considered an essential part of the midstream side of the petroleum industry." This process flow diagram (PFD) of a typical crude oil distillation unit as used in petroleum crude oil refineries was redrawn from Wikipedia file: Crude Oil Distillation Unit.png. The PFD example "Process flow diagram - Typical oil refinery" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park. There is usually an oil depot (tank farm) at or near an oil refinery for the storage of incoming crude oil feedstock as well as bulk liquid products.Īn oil refinery is considered an essential part of the downstream side of the petroleum industry." The crude oil feedstock has typically been processed by an oil production plant. In many ways, oil refineries use much of the technology of, and can be thought of, as types of chemical plants. Oil refineries are typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units. "An oil refinery or petroleum refinery is an industrial process plant where crude oil is processed and refined into more useful products such as petroleum naphtha, gasoline, diesel fuel, asphalt base, heating oil, kerosene and liquefied petroleum gas. This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. This process flow diagram (PFD) example was redesigned from the Wikimedia Commons file: RefineryFlow.png. This is a schematic process flow diagram of the processes used in a typical oil refinery.
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