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Coal gasification catalyst loading method

A catalyst and coal gasification technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, catalyst activation/preparation, etc., can solve the problems of coal sample sticking to the wall, blocking equipment, etc., reduce the probability of agglomeration, and avoid coal sample Effects of wall sticking and clogged equipment

Inactive Publication Date: 2019-08-02
ENN SCI & TECH DEV
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  • Claims
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Problems solved by technology

[0004] In view of this, the present invention proposes a catalyst loading method for coal gasification, aiming to solve the problems in the prior art that the coal samples stick to the wall and block the equipment due to the agglomeration of the catalyst-loaded coal samples

Method used

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Embodiment Construction

[0020] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with the examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention rather than limiting the patent requirements of the present invention.

[0021] refer to figure 1 , the invention provides a catalyst loading method for coal gasification, comprising the following steps:

[0022] Step 1, adding an appropriate amount of surfactant to the catalyst solution.

[0023] Specifically, the catalyst solution used in this embodiment can be alkali metal potassium or sodium salts and hydroxides, such as potassium carbonate solution; or alkaline earth metal calcium, magnesium salts or hydroxides, transition metal iron, Salts of nickel, or binary, ternary or multiple composite catalysts of the above metals. Because the catalyst loading in the coal sample i...

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Abstract

The invention provides a coal gasification catalyst loading method which comprises the following steps: putting a proper amount of a surfactant into a catalyst solution; soaking a coal sample into thecatalyst solution with the surfactant in a pressurized hot soaking mode, thereby achieving loading of a catalyst. By adopting the catalyst loading method provided by the invention, the surfactant isput into the catalyst solution, so that sufficient infiltration of the catalyst solution with the coal sample can be promoted; by using a pressurized hot soaking method, the catalyst solution with thesurfactant is loaded in the coal sample, so that a small amount of the catalyst solution is retained on the surface of the coal sample, a small amount of a catalyst crystal is evaporated and separated, the aggregation probability of coal powder granules is greatly reduced, and the problem that the coal sample is adhered to walls and equipment is blocked can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of coal catalytic gasification, in particular to a catalyst loading method for coal gasification. Background technique [0002] Coal catalytic gasification is one of the most efficient gasification technologies for coal-to-natural gas. Coal catalytic gasification technology significantly reduces the gasification temperature and accelerates the gasification rate. Coal catalytic gasification is to add a suitable catalyst to the coal, so that the three reactions of gasification, shift and methanation are coupled in the same reactor, thus greatly improving the energy efficiency of the system and reducing the investment of subsequent transformation and methanation equipment . Alkali metals, alkaline earth metals and transition metals all have catalytic effects on coal steam gasification, among which alkali metal salts especially K 2 CO 3 The catalytic effect is the best and the most widely used. [0003] The...

Claims

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Application Information

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IPC IPC(8): B01J37/02
CPCB01J37/0201
Inventor 李克忠王会芳怀俊天
Owner ENN SCI & TECH DEV
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