A kind of mor-based catalyst modified by na atom and the method of direct conversion of syngas to liquid fuel

A liquid fuel, synthesis gas technology, applied in catalyst activation/preparation, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems such as insufficient product selectivity, and achieve the effects of easy separation, high application prospects, and high selectivity

Active Publication Date: 2021-07-16
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The technology of the present invention solves the problem of insufficient product selectivity in the process of direct conversion of synthesis gas to liquid fuel, and provides a catalyst and a method for direct conversion of synthesis gas to liquid fuel. The invented catalyst is modified by simple Na atoms, The product of syngas conversion can be adjusted to liquid fuel, and the selectivity of gasoline in liquid fuel can be greatly improved

Method used

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  • A kind of mor-based catalyst modified by na atom and the method of direct conversion of syngas to liquid fuel
  • A kind of mor-based catalyst modified by na atom and the method of direct conversion of syngas to liquid fuel
  • A kind of mor-based catalyst modified by na atom and the method of direct conversion of syngas to liquid fuel

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preparation example Construction

[0028] 1. Preparation of Catalyst Component I

[0029] (1) Synthesis of ZnO materials with high specific surface area by precipitation method:

[0030] (1) Weigh 3 parts, 0.446g (1.5mmol) Zn(NO 3 ) 2 ·6H 2 O in 3 containers, then weigh 0.300g (7.5mmol), 0.480g (12mmol), 0.720g (18mmol) NaOH and add them to the above 3 containers in turn, then add 30ml of deionized water to each of the 3 containers In the container, stir at 70°C for more than 0.5h to make the solution evenly mixed, and cool naturally to room temperature. The reaction solution was centrifuged to collect the precipitate after centrifugation, and washed twice with deionized water to obtain the ZnO metal oxide precursor;

[0031] (2) Roasting: After the above-mentioned obtained product is dried in the air, it is calcined in the atmosphere to obtain a ZnO material with a high specific surface area. The atmosphere is inert gas, reducing gas or oxidizing gas; the inert gas is N 2 One or more of , He and Ar; the ...

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Abstract

The invention belongs to the direct preparation of liquid fuel from synthesis gas, and in particular relates to a MOR-based catalyst modified by Na atoms and a method for directly converting synthesis gas into liquid fuel. The conversion reaction is carried out on a fixed bed or a moving bed by using synthesis gas as a reaction raw material. The catalyst is a composite catalyst, composed of component A and component B in a mechanically mixed manner, the active component of component A is a metal oxide, and component B is a molecular sieve with a MOR structure; the active component in component A The weight ratio with component B is 0.1-20. The reaction process has high product yield and selectivity, and the selectivity of gasoline in liquid fuel can reach 50-80%, while the selectivity of by-product methane is low (<12%), and has good application prospects.

Description

technical field [0001] The invention belongs to the preparation of liquid fuel by synthesis gas, and in particular relates to a Na atom-modified MOR-based catalyst and a method for preparing liquid fuel by direct conversion of synthesis gas. Background technique [0002] With the development of the economy and the improvement of living standards, the demand for liquid fuels and chemicals has also increased sharply year by year. Gasoline is currently produced mainly by catalytic reforming of heavy naphtha. With the increasing consumption of global oil resources and the high price of crude oil, especially for my country, which is short of oil resources, more than 60% of its annual oil consumption depends on imports. It is necessary to seek an alternative process route, develop and utilize coal The method of preparing liquid fuel from non-oil-based carbon resources such as biomass and biomass has important social and strategic significance. [0003] my country is rich in coal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/18B01J29/24B01J29/26B01J37/10B01J37/03B01J35/10C10G2/00
CPCB01J29/185B01J29/24B01J29/26B01J35/1014B01J35/1019B01J37/031B01J37/10B01J2229/18C10G2/334
Inventor 潘秀莲封景耀焦峰包信和
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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