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US4962074A Catalytic cracking of hydrocarbons with oxygen promoted alkali metal zeolite cracking catalyst 失效
用氧气催化裂解烃促进碱金属沸石裂化催化剂

Catalytic cracking of hydrocarbons with oxygen promoted alkali metal
zeolite cracking catalyst
摘要:
A process for the catalytic cracking of a hydrocarbon oil is provided which comprises contacting the oil under cracking conditions with a large pore, alkali metal crystalline silicate zeolite cracking catalyst which is essentially free of shape selective combustion catalyst in the presence of a cracking-promoting amount of oxygen. A cracking catalyst of alkali metal zeolite and shape selective cracking catalyst is also disclosed.
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