Isomerization catalyst and preparation thereof

A catalyst and isomerization technology, applied in refined hydrocarbon oil, petroleum industry, etc., can solve problems such as unsatisfactory anti-coking ability, intensified cracking reaction, and small stability range, etc., and achieve octane recovery function Strong, inhibit polymerization coking reaction, reduce the effect of carbon deposition
CN1488722AInactive Publication Date: 2004-04-14CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2004-04-14
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The present invention relates to a normal paraffin hydrocarbon hydrogenation isomerization catalyst using nano HBeta zeolite as carrier, and the grain size of nano HBeta is 30.0nm-180.0 nm. Said invented catalyst can shorten the dwell time of n-carbonionic intermediate in catalyst channel, raise selectivity of isomerization product and at the same time can inhibit the secondary reaction of polymeric coking, etc. Said invention also provides the preparation method of said catalyst.
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Description

1. Technical field

[0001] The invention relates to an isomerization catalyst and its preparation, which is applied in a combination process of hydrogenation and upgrading of inferior catalytic cracking (FCC) gasoline. While greatly reducing the content of harmful sulfur compounds and olefin compounds in low-quality FCC gasoline, the resulting low-sulfur, low-olefin content clean gasoline has a small loss in antiknock index ((R+M) / 2). 2. Background technology

[0002] With the rapid development of my country's automobile industry, the air pollution caused by automobile exhaust has attracted more and more attention. Due to the reduction of sulfur and olefin content in gasoline, CO and NO in automobile exhaust can be reduced X Therefore, the "Control Standards for Hazardous Substances in Motor Gasoline" formulated by the State Environmental Protection Administration of my country requires that the sulfur content of motor gasoline in my country is less than 800 μg / g, and the ol...

Claims

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