China's refineries are facing several severe challenges – stiff market competition and tightening of environmental protection requirements. Moreover the fluid catalytic cracking (FCC) unit is the major gasoline "workhorse;" about 80% of the product streams are from the FCC unit and contribute high olefins and sulfur to the gasoline pool.
Refiners are seeking technological advances to minimize capital investment while still meeting new gasoline specifications. Catalyst is certainly a key factor in the FCC operation. Novel FCC catalysts and additives have been developed to process heavier feeds and to reduce olefins and sulfur content in FCC gasoline. These developments may enable r
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