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method for preparing a zeolietkata - learning.
method for preparing a zeolietkata - learning.
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机译:制备zeolietkata的方法-学习。
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摘要
A process for cracking hydrocarbon feedstocks by contacting such stocks under cracking conditions with a composite catalyst comprising an improved hydrogen exchanged Y-type zeolite component and an amorphous inorganic matrix component. The use of this catalyst yields cracked naphthas of increased olefinic content for the production of lead-free high octane gasoline. Further improvement in the levels of C3 and C4 olefins can be realized by incorporating a portion of calcined rare earth exchanged Y-type zeolite into the composite catalyst.
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