Cracking, Coking, Hydrocracking, and Reforming

In many refineries, coking processes, which use high temperatures and low pressures, have superseded thermal cracking processes. 

The principal application of catalytic cracking (Table 13.2) is the production of high-octane gasoline, to supplement the gasoline produced by distillation and other processes. Catalytic cracking also produces heating oil components and hydrocarbon feedstocks, such as propene, and butene, for polymerization, alkylation, and petrochemical operations. The main process used in catalytic cracking involves the use of fluidized bed units (FCC). 

Solid acidic catalyst (silica-alumina, zeolite, and so on) 

Provisions needed for continuous catalyst replacement with heavier feedstocks (residua) 

Residua pretreated to remove high molecular weight (asphaltic constituents) Products 

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Cracking, Coking, Hydrocracking, and Reforming IVeating Processes Petroleum Products... 

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