Fe-based catalyst, preparation method thereof and application thereof for preparing aromatic hydrocarbons through one-step method by synthesis gas

A catalyst, synthesis gas technology, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of poor catalyst stability, low metal dispersion, low aromatics selectivity, etc.
CN110368984AInactive Publication Date: 2019-10-25SYNFUELS CHINA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SYNFUELS CHINA TECH CO LTD
Publication Date
2019-10-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an Fe-based catalyst for preparing aromatic hydrocarbons through a one-step method by synthesis gas and a preparation method of the Fe-based catalyst. The Fe-based catalyst isprepared from a Fe-based spinel material, molecular sieve zeolite and a metal oxide auxiliary agent, wherein the content of the Fe-based spinel material is 9.95%-79.95%, the zeolite molecular sieve is20%-90%, and the oxide auxiliary agent is 0.05-20%. The Fe-based catalyst couples preparation of olefin by the synthesis gas with aromatization reaction of the olefin, and because the spinel materialhas high structural stability and Fe dispersibility in catalytic reaction and high reactivity, light aromatics selectivity and stability are maintained during the 1000h synthesis gas catalytic conversion process, the technical problems of low aromatics selectivity, poor catalyst stability and high content of polycyclic aromatic hydrocarbons in the process preparing the aromatic hydrocarbon from the synthesis gas are solved; and the catalyst synthesis cost is low, the operation is simple, and the Fe-based catalyst and the preparation method are suitable for large-scale industrial production ofthe aromatic hydrocarbons from the synthetic gas.
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Description

technical field

[0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to an Fe-based catalyst for preparing aromatics from synthesis gas in one step and a preparation method thereof. Background technique

[0002] Aromatics (including benzene, toluene, xylene, referred to as BTX) are important basic organic raw materials, which can be derived from a variety of product chains.

[0003] At present, the production of aromatics at home and abroad mainly relies on petroleum resources. In aromatics production units, aromatics products are obtained through hydrogenation, reforming, aromatics conversion, and separation under the conditions of catalysts and high temperature and pressure. However, the reserves of fossil fuels such as petroleum are limited, the price of crude oil is constantly increasing, and the cost of the petroleum-led chemical industry is also rising. Therefore, the development of a process route for producing aromat...

Claims

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