Catalyst and a Method for Cracking Hydrocarbons
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United States of America Patent
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Issued Date -
Dec 18, 2008
app pub date -
Dec 28, 2005
filing date -
Dec 28, 2004
priority date (Note) -
Abandoned
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Abstract
The invention discloses a catalyst and a method for cracking hydrocarbons. The catalyst comprises, calculated by dry basis, 10.about.65 wt % ZSM-5 zeolite, 0.about.60 wt % clay, 15.about.60 wt % inorganic oxide binder, 0.5.about.15 wt % one or more metal additives selected from the metals of Group VIIIB and 2.about.25 wt % P additive, in which the metal additive is calculated by metal oxide and the P additive is calculated by P.sub.2O.sub.5. The method for cracking hydrocarbons using this catalyst increases the yield of FCC liquefied petroleum gas (LPG) and the octane number of FCC gasoline, as well as it increases the concentration of propylene in LPG dramatically.
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