发明名称 |
FCC catalysts for feeds containing nickel and vanadium |
摘要 |
A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and a particular kaolin which has been calcined through its characteristic exotherm and which produces a catalyst having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. Calcination of the hydrous kaolin to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.
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申请公布号 |
US6673235(B2) |
申请公布日期 |
2004.01.06 |
申请号 |
US20020164488 |
申请日期 |
2002.06.06 |
申请人 |
ENGELHARD CORPORATION |
发明人 |
HARRIS DAVID H.;XU MINGTING;STOCKWELL DAVID;MADON ROSTAM J. |
分类号 |
B01J21/16;B01J29/06;B01J29/08;B01J35/00;B01J35/10;B01J37/00;B01J37/02;C10G11/05;(IPC1-7):B01J29/08 |
主分类号 |
B01J21/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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