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Preparation method, preparation device and application method of catalyst for DEC synthesis

A technology for mixing catalysts and catalysts, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of difficult catalyst recovery, high energy consumption, and economical process technology to improve the technical economy and reduce risks

Active Publication Date: 2019-08-02
ENN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Catalyst recovery is difficult, energy consumption is high, and process technology economy is reduced

Method used

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  • Preparation method, preparation device and application method of catalyst for DEC synthesis
  • Preparation method, preparation device and application method of catalyst for DEC synthesis
  • Preparation method, preparation device and application method of catalyst for DEC synthesis

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Embodiment Construction

[0036] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0037] like Figure 1 to Figure 3 Shown, the present invention provides a kind of preparation method of DEC synthesis catalyst, the DEC of indication in this invention is diethyl carbonate, the preparation method of this DEC synthesis catalyst comprises the steps:

[0038] S01), washing and filtering the ash obtained after coal catalytic gasification, reclaiming the soluble catalyst therein;

[0039] In this step, the furnace coal in the coal preparation unit enters the catalytic gasification unit 32 for catalytic gasification to produce ash containing catalyst, and the ash containing catalyst is sent to the catalyst water washing recovery unit 34 through the slag dis...

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Abstract

The invention relates to a preparation method of a catalyst for DEC synthesis. The preparation method of the catalyst for DEC synthesis comprises the steps as follows: ash produced by catalytic coal gasification and haloid acid react; a solution obtained after the reaction is filtered, and a halide salt solution containing alkali metal is obtained; the halide salt solution and fly ash containing the catalyst are mixed and dried, and catalyst particles for DEC synthesis are obtained. Besides, the invention also discloses a preparation device and an application method of the catalyst for DEC synthesis as well as a system for DEC synthesis by use of the catalyst prepared with the preparation method of the catalyst for DEC synthesis. The technical route of poly-generation of the existing catalytic gasification process is realized, a chemical product with high added value is produced while a methane product is obtained, the risk that single product is limited by market supply and demand isreduced, and the overall technical economy of the process is improved.

Description

technical field [0001] The invention relates to the technical field of catalytic gasification of coal, and more specifically, to a preparation method, preparation device and application method of a catalyst for DEC synthesis. Background technique [0002] With the rapid economic development and increasingly stringent environmental regulations, the demand for natural gas, a clean energy, is growing explosively. Catalytic gasification technology is an important way to cleanly and efficiently utilize coal. Using catalytic gasification technology, coal undergoes a gasification reaction with a gasification agent at a relatively low temperature under the catalysis of a catalyst to generate high-concentration methane. The addition of catalyst can reduce the reaction temperature and increase the reaction rate, but because of the high cost of the catalyst, the catalyst in the ash needs to be recovered and recycled. The recovery of the catalyst is difficult, the energy consumption is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/04C07C1/04C07C9/04C07C1/12
CPCB01J23/04C07C1/043C07C1/12C07C9/04
Inventor 毛燕东李克忠
Owner ENN SCI & TECH DEV
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