Catalytic Cracking 1
Catalytic Cracking 1 : A process used in petroleum refining to convert high-boiling hydrocarbon fractions to lower-boiling fractions suitable for use as gasoline. The first catalysts were natural clays; these were later replaced by synthetic sodium alumino-silicates, and then by zeolites, notably zeolite Y. Those processes with special names which are described in this dictionary are: Airlift, ARS, Catarole, Demet, Dynacracking, FCC, Houdresid, Houdriflow, Houdriforming, Houdry, MDDW, MSCC, Orthoflow, R2R, SBA-HT, Suspensoid, TCC, Thermofor, THERMOCAT, Ultra-Orthoflow, Veba-Combi-Cracking
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