Petroleum refinery schematic

Figure 2.2. Schematic of a petroleum refinery (from Speight, 1999)...

The operation of the preprocessor is shown schematically in Figure 1. There are five basic steps o Select crude assay data o Build and report input tables o Generate crude data o Generate process data o Build and access LP data tables In the first step, the preprocessor accesses the disc file which contains all of Sun Petroleum Products Company s crude assays. The preprocessor extracts assay data for those crudes which the user has identified by card input as part of the base crude mix or to be made available to the LP model as an incremental refinery feed. The user can identify up to ten crudes any five of which can be designated as incremental. 

The tenii petrochemicals refers to the basic chemicals that are derived from refinery petroleum cuts. They are produced by separation of the byproducts from the cracking (pyrolysis) of hydrocarbon streams. These streams range from natural gas to the heavy distillate (gas oil) cuts from a refinery primary fractionator. Some chemicals, such as the aromatics, are separated from various refinery streams. Figure 13.43 is simplified schematic of a petrochemical process. 

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