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ZSM-5 ADDITIVE ACTIVITY ENHANCEMENT BY IMPROVED ZEOLITE AND PHOSPHORUS INTERACTION
ZSM-5 ADDITIVE ACTIVITY ENHANCEMENT BY IMPROVED ZEOLITE AND PHOSPHORUS INTERACTION
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机译:改进的沸石和磷相互作用增强ZSM-5的活性
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摘要
A catalytic additive comprising an intermediate pore zeolite, such as ZSM-5 is treated so as to improve propylene yields when the additive is included in a FCC catalytic inventory by first treating the zeolite with a phosphorus compound to incorporate the phosphorus in the zeolite, and mixing the P-treated zeolite with a matrix component comprising kaolin and another phosphorus-containing compound.
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