发明名称 |
METHOD FOR SUPPRESSING THE POISONING EFFECTS OF CONTAMINANT METALS ON CRACKING CATALYSTS IN FLUID CATALYTIC CRACKING. |
摘要 |
<p>Poisoning of a cracking catalyst by contaminant metals such as nickel, vanadium and iron during fluid catalytic cracking of hydrocarbon charge stock containing the contaminant metals is suppressed by depositing minor amounts of a bismuth-containing passivating agent on the catalyst, desirably, a weight ratio of bismuth to nickel equivalents (nickel+0.2 vanadium+0.1 iron) of about 0.01:1 to about 1:1. The passivating agent can also comprise mixtures of compounds of bismuth and antimony, bismuth and tin.</p> |
申请公布号 |
EP0316431(B1) |
申请公布日期 |
1994.12.28 |
申请号 |
EP19880905477 |
申请日期 |
1988.04.22 |
申请人 |
CHEVRON RESEARCH AND TECHNOLOGY COMPANY |
发明人 |
RAMAMOORTHY, PERIASWAMY;KRISHNA, ASHOK, S. |
分类号 |
C10G9/00;B01J29/04;C10G11/00;C10G11/04;C10G11/18;(IPC1-7):C10G11/00;C10G9/28 |
主分类号 |
C10G9/00 |
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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