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Preparation method of modified beta zeolite catalyst for isobutane and butylene alkylation reaction

A technology of butene alkyl and beta zeolite, which is applied in the field of preparation of zeolite catalysts for petrochemical industry, and can solve the problems of decreased activity and short reaction life

Inactive Publication Date: 2003-09-24
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hβ zeolite is currently recognized as one of the best alkylation catalysts, but it also has the disadvantage of rapid activity decline and short reaction life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 3

[0013] Alkylation performance of each catalyst:

[0014] TOS(min)

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PUM

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Abstract

The present invention relates to a titanium-containing load type beta zeolite catalyst for preparing gasoline with high octane value by utilizing isobutane and butene to make alkylation reaction. Said invention uses beta-zeolite as mother body and includes the following steps: after convertional dealuminification using TiCl4 steam to make treatment and making titanium effectively loaded in zeolite, then using sulfate to accelerate, roasting so as to obtain the required granules (40-60 meshes). The catalyst prepared by said invented method can obviously raise alkylation reaction activity and selectivity.

Description

technical field [0001] The invention relates to a preparation method of a zeolite catalyst for petrochemical industry. Background technique [0002] High-quality alkylated gasoline is an urgently needed fuel for environmental protection and automotive energy. The catalysts used in the prior art to produce this kind of alkylated oil are anhydrous concentrated sulfuric acid and hydrofluoric acid, which have many factors such as serious environmental pollution, equipment corrosion and unsafe production. People have been trying to replace the above-mentioned catalysts with solid acid catalysts. Although zeolites and superacids show high activity in the alkylation reaction, their lifetimes are too short. Hβ zeolite is currently recognized as one of the best alkylation catalysts, but it also has the disadvantage of rapid activity decline and short reaction life. Contents of the invention [0003] The purpose of the present invention is to develop a kind of pollution-free, long...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/06
Inventor 李全芝孙明星
Owner FUDAN UNIV