Catalyst raw material used for catalytic coal gasification and application method thereof

Abstract

The invention relates to a catalyst raw material used for catalytic coal gasification and an application method thereof. The catalyst raw material is prepared by mixing vanadium oxide or vanadate or a vanadium-containing material and metal oxide, metal hydroxide or metal salt though quantification according to a vanadate chemical reaction. The catalyst raw material has the effects that 1) coal gasification can be completed under low temperature condition, no strict requirement on production materials of equipment is provided, the equipment can be manufactured by selecting common steel, manufacture cost of the equipment can be reduced; 2) gasification reaction rate is increased, gas production amount by unit time is increased, cost is saved, and energy consumption is reduced; 3) carbon dioxide and oxygen are employed as a gasifying agent, the carbon dioxide can be catalytically converted to combustible gas carbon monoxide, under same heat energy condition, coal can be saved by more than 35%, emission reduction for carbon dioxide can reach more than 35%; and 4) according to requirement of gas components by a subsequent technology, carbon dioxide, oxygen and vapour can be selected as the gasifying agent for producing synthetic gas containing hydrogen and methane, and carbon dioxide and oxygen can be used for producing high-density carbon monoxide gas.

Description

technical field [0001] The invention belongs to the field of coal chemical industry, and in particular relates to a catalyst raw material for coal catalytic gasification and an application method thereof. Background technique [0002] The catalytic gasification of coal is carried out in the solid state of coal. The catalyst and coal powder are uniformly mixed together according to a certain proportion. Good contact and speed up the reaction rate, compared with the traditional coal gasification, the catalytic gasification of coal can significantly reduce the reaction temperature, increase the reaction rate, and improve the gas composition. The coal gasification catalysts currently researched and developed include: [0003] 1) Monomer metal salt or oxide catalyst: K 2 CO 3 It is the only coal catalytic gasification catalyst for industrial application at present, with K 2 CO 3 As a catalyst, the preparation method is simple and the stability is good, but K 2 CO 3 As a ca...

AI Technical Summary

Problems solved by technology

It mainly includes potassium-containing biomass ash, industrial waste lye, industrial waste solid alkali, pyrite slag, converter red mud, etc. The cost of disposable catalyst is low, but due to the large amount of consumption and large heat energy consumption, the ash is alkaline and easy to cause Secondary pollution

[0006] At present, the difficulty of coal catalytic technology lies in the development of high-efficiency catalysts for coal gasification, the price and recovery of catalysts, and the problems that the currently developed catalysts are prone to secondary pollution, which has always restricted the industrialization process of coal catalytic gasification.