REY molecular sieve containing phosphor and amorphous silica, preparation method and application

A molecular sieve and silicon oxide technology, which is applied in molecular sieve catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of long preparation process, complicated preparation method, low equilibrium unit cell, etc., and shorten the preparation process and preparation method Ease of use, balanced reaction rate effect
CN1660496AActive Publication Date: 2005-08-31CHINA 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
2005-08-31

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Abstract

A molecular sieve REY containing P and amorphous silicon oxide for decreasing the content of olefin in gasoline and improving the selectivity of coke features that in its P MAS NMR spectrum the summary area of its -15+ / -2 ppm peak and -23+ / -2 ppm peak is 85% greater than the total peak area. Its preparing process is also disclosed.
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Description

technical field

[0001] The present invention relates to a molecular sieve, a preparation method and its application, and more particularly to a REY molecular sieve containing phosphorus and amorphous silicon oxide, a preparation method and its application in catalytic cracking catalysts. Background technique

[0002] Catalytic cracking process is an important process of lightening heavy oil, and it is one of the main sources of economic benefits of each refinery. More than 75% of the blending components in my country's finished gasoline come from catalytic cracking units. Due to the increasingly stringent restrictions on the composition of vehicle fuels in environmental protection regulations, such as the "Control Standards for Hazardous Substances in Vehicle Gasoline" formulated by the State Environmental Protection Administration in 1999, it is required The olefin content in gasoline is less than 35v%, so that the catalytic cracking unit faces incr...

Claims

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