Composite molecular sieve-based catalyst for methanol to gasoline and preparation method and application thereof

A compound molecular sieve and methanol-to-gasoline technology, which is applied in the direction of molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of limited technology popularization and application, no breakthrough progress, frequent regeneration, etc.
CN102861608AInactive Publication Date: 2013-01-09QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
Publication Date
2013-01-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

A composite molecular sieve-based catalyst for methanol to gasoline is prepared by the following method: (a) template and aluminium source are dissolved in deionized water and stirred until the deionized water is clear, silicon source and alkali source are then dripped in, and after crystallization under the hydrothermal conditions of self-generated pressure and crystallization temperature, ZSM-5 molecular sieve precursor is prepared; (b) the ZSM-5 molecular sieve precursor and the alkali solution of cetyl trimethyl ammonium bromide as template are mixed, and after crystallization under the hydrothermal conditions of self-generated pressure and crystallization temperature and roasting, ZSM-5 / MCM-48 composite molecular sieve is prepared; (c) the ZSM-5 / MCM-48 composite molecular sieve and acid solution are subjected to ion exchange and are roasted, so that acidic HZSM-5 / MCM-48 composite molecular sieve is prepared; (d) the HZSM-5 / MCM-48 composite molecular sieve and binder are uniformly mixed, kneaded with nitric acid solution with volume concentration less than 10 percent to shape and roasted, so that the catalyst is prepared. The invention also discloses the preparation method for the catalyst.
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Description

technical field

[0001] The invention relates to a catalyst for methanol to gasoline.

[0002] The present invention also relates to a method for preparing the above-mentioned catalyst.

[0003] The invention also relates to the application of the above-mentioned catalyst in the methanol-to-gasoline reaction. Background technique

[0004] my country's energy structure is characterized by rich coal, little oil, lack of gas, and relatively rich biomass resources. In recent years, the rising and uncertain international oil prices have had an important impact on my country's economy, and have also brought considerable pressure on my country's energy security. Liquid transportation fuels such as gasoline and diesel are imperative. Among the developed coal and biomass to liquid fuels (CTL&BTL) routes, methanol conversion to gasoline (MTG) technology is considered to be one of the most promising solutions to solve the current shortage of transportation fuels in my country. Especi...

Claims

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