Understanding the active centers of catalytic cracking catalysts
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1. How should the active centers of catalytic cracking catalysts be understood? 2. What can destroy its active center?
The active site is the acidic site, which is divided into B-acid and L-acid. These two acidic sites cause alkanes and alkenes to form carbocations, followed by reactions such as cracking and hydrogen transfer
The heavy metal vanadium is a typical example of something that can destroy the active centers of catalysts.