Catalyst for catalytic coal gasification as well as catalytic coal gasification method and device

Abstract

The invention relates to the technical field of catalytic coal gasification, in particular to a catalyst for catalytic coal gasification as well as a catalytic coal gasification method and device. The catalyst is lower in cost, has double functions of oxygen release and methanation and is conveniently and rapidly separated and recovered after catalytic gasification reaction. The defects that the catalyst is relatively difficultly separated from ash residues produced through the catalytic coal gasification reaction, water consumption and energy consumption are higher during recovery and the economic efficiency is low due to the fact that the catalyst is loaded in coal in the prior art are overcome. An embodiment of the invention provides the catalyst for the catalytic coal gasification. The catalyst contains a methanation active ingredient and an oxygen carrier, wherein the oxygen carrier contains an oxygen carrying compound and a carrier, the oxygen carrying compound is selected from one or more of copper oxide, nickel oxide, manganese oxide and cobalt oxide. The embodiment of the invention is applied to the catalytic coal gasification reaction.

Description

technical field [0001] The invention relates to the technical field of coal catalytic gasification, in particular to a catalyst for coal catalytic gasification, a method and a device for catalytic coal gasification. Background technique [0002] In the catalytic gasification process, since the addition of the catalyst can effectively reduce the reaction temperature, increase the reaction rate, and increase the methane yield, in order to improve the catalytic effect of the catalyst, the catalyst is usually loaded on the coal to improve the catalytic activity. The catalyst and coal The combination of medium minerals will cause partial deactivation, so that the loading capacity of the catalyst is higher. At the same time, due to the high cost of the catalyst and the presence of the catalyst in the ash generated after coal catalytic gasification will cause environmental pollution, therefore, it is necessary to treat the ash The catalyst in the catalyst is recovered, because the ...

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Problems solved by technology

[0002] In the catalytic gasification process, since the addition of the catalyst can effectively reduce the reaction temperature, increase the reaction rate, and increase the methane yield, in order to improve the catalytic effect of the catalyst, the catalyst is usually loaded on the coal to improve the catalytic activity. The catalyst and coal The combination of medium minerals will cause partial deactivation, so that the loading capacity of the catalyst is higher. At the same time, due to the high cost of the catalyst and the presence of the catalyst in the ash generated after coal catalytic gasification will cause environmental pollution, therefore, it is necessary to treat the ash Catalysts in coal are recycled. Because the catalyst is loaded in coal, it is difficult to recover, and the water consumption and energy consumption are high, which affects the overall economics of coal catalytic gasification.

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