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Gasification raw material, preparation method of the gasification raw material, and catalytic gasification method adopting the gasification raw material

A raw material and catalyst technology, applied in the raw material field of gasification process, can solve the problems of poor industrial application prospects, small catalyst loading, high cost, etc.

Active Publication Date: 2013-11-06
ENN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the ion exchange method has the disadvantages of limited catalyst types, small catalyst loading, long time required, and small coal particle size, the industrial application prospect of this process is poor and the cost is high.

Method used

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  • Gasification raw material, preparation method of the gasification raw material, and catalytic gasification method adopting the gasification raw material

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preparation example Construction

[0027] The method for preparing gasification raw material involved in the second aspect of the present invention comprises the following steps:

[0028] Loading the alkali metal catalyst on the first carbon-containing substance to obtain the first raw material;

[0029] Loading the alkaline earth metal catalyst on the second carbon-containing substance to obtain a second raw material;

[0030] The first raw material and the second raw material are uniformly mixed to obtain a gasification raw material.

[0031] Wherein the selection of the first carbonaceous substance, the second carbonaceous substance, the alkali metal catalyst and the alkaline earth metal catalyst is as described above.

[0032] The "loading" mentioned in the present invention should be understood in a broad sense, including the dispersion step and the drying step, wherein the "dispersion step" generally refers to making a substance (generally referred to as the target substance) in a discrete state A proce...

Embodiment 1

[0042] The selected coal type is Wangjiata bituminous coal (carbon content is about 60%). The raw coal is crushed to a particle size range of 0.25-2.5mm, divided into two parts, loaded with potassium carbonate and calcium hydroxide respectively, dried and mixed , to obtain the gasification raw material, and carry out the coal gasification experiment on the gasification raw material. Divide 100g of Wangjiata bituminous coal into two parts of equal mass, dissolve 7.5g of potassium carbonate in 40ml of deionized water, and then impregnate the obtained potassium carbonate solution on one part of 50g of Wangjiata bituminous coal, and dry it at 105°C to obtain the load Bituminous coal A with potassium carbonate catalyst; dissolve 1.5g of calcium hydroxide in 40ml of deionized water, then impregnate calcium hydroxide onto another 50g of Wangjiata bituminous coal, and dry at 105°C to obtain bituminous coal B with calcium hydroxide catalyst , mix A and B uniformly to obtain the gasific...

Embodiment 2

[0044] The selected coal type is Wangjiata bituminous coal (carbon content is about 60%). The raw coal is crushed to a particle size range of 0.25-2.5mm, divided into two parts, loaded with potassium carbonate and calcium hydroxide respectively, dried and mixed , to obtain the gasification raw material, and carry out the coal gasification experiment on the gasification raw material. Divide 100g of Wangjiata bituminous coal into two parts of equal mass, dissolve 2.5g of potassium carbonate in 40ml of deionized water, and then impregnate the obtained potassium carbonate solution on one part of 50g of Wangjiata bituminous coal, and dry it at 105°C to get the load Bituminous coal A with potassium carbonate catalyst; dissolve 1.5g of calcium hydroxide in 40ml of deionized water, then impregnate calcium hydroxide onto another 50g of Wangjiata bituminous coal, and dry at 105°C to obtain bituminous coal B with calcium hydroxide catalyst , mix A and B uniformly to obtain the gasificati...

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Abstract

The invention discloses a gasification raw material. The gasification raw material comprises a first carbon-containing material, an alkali metal catalyst loaded on the first carbon-containing material, a second carbon-containing material, and an alkaline-earth metal catalyst loaded on the second carbon-containing material, wherein the first carbon-containing material and the second carbon-containing material are same or different. The invention also discloses a preparation method of the gasification raw material and a catalytic gasification method adopting the gasification raw material.

Description

technical field [0001] The present invention relates to a raw material for gasification process, in particular to a gasification raw material for a gasification furnace, a preparation method of such a gasification raw material and catalytic gasification using the gasification raw material method. Background of the invention [0002] Coal catalytic gasification to methane process means that coal is gasified into CO, H 2 、CH 4 Wait for gas. Typical coal catalytic gasification research includes EXXON's coal catalytic gasification methane research (proposed in 1976) and Great Point Energy's coal catalytic gasification process (proposed in 2004). The Great Point Energy Company of the United States conducted further research on the basis of the EXXON process technology, expanded the raw materials to petroleum coke and biomass, and improved some technologies. The common feature of these two studies is that they are both based on coal catalytic gasification, which reduces the re...

Claims

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Application Information

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IPC IPC(8): C10J3/00
Inventor 郑岩武恒毕继诚陈兆辉湛月平李克忠
Owner ENN SCI & TECH DEV
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