A kind of coal catalytic gasification reaction material and its preparation method and application

A technology for coal catalytic gasification and reaction material, which is applied to the application field of coal catalytic gasification reaction material in coal catalytic gasification, and can solve the problems of increasing catalyst loss, reducing the gasification activity of coarse-grained coal powder, and high catalyst loading. , to achieve the effect of improving gasification activity, reducing loss and improving efficiency

Inactive Publication Date: 2016-09-07
CHINA NAT OFFSHORE OIL CORP +2
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AI Technical Summary

Problems solved by technology

[0006] Although coal catalytic gasification technology has the above-mentioned technical advantages, the existing catalytic gasification technology has a certain upper limit requirement for coal powder. Generally, the particle size range of coal powder is generally below 10mm or below 5mm, that is, the particle size range of coal powder It varies between 0-10mm or 0-5mm, and during catalyst impregnation, because under the same impregnation conditions, the catalyst loading of fine-grained coal powder is high, while that of coarse-grained coal powder is low, thus The gasification activity of coarse coal powder is reduced due to the low amount of catalyst loaded on the coarse coal powder, and the catalyst loaded on the fine coal powder is carried out because the fine coal powder is easily carried out during the catalytic coal gasification process , thereby increasing catalyst loss due to carryover of fine coal fines

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  • A kind of coal catalytic gasification reaction material and its preparation method and application

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preparation example Construction

[0030] The preparation method of the coal catalytic gasification reaction material in the present invention is not limited. For example, it can be prepared by the preparation method described below in the present invention.

[0031] The present invention provides a method for preparing a reaction material for coal catalytic gasification, wherein the method includes: immersing and contacting a plurality of parts of coal powder with successively increasing particle diameters with a solution containing a coal catalytic gasification catalyst, and The conditions are such that, relative to the same mass unit of pulverized coal, the amount of coal catalytic gasification catalyst impregnated on the next part of the coal with a large particle size is not less than that of the adjacent previous part of the coal with a small particle size. The amount of coal catalytic gasification catalyst.

[0032] In the present invention, the multiple parts with increasing particle size means that the aver...

Embodiment 1

[0065] Choosing Buliangou bituminous coal (carbon content about 60% by mass) as the coal, crushed to a particle size range below 5mm (the upper limit of the particle size is 5mm, and the particle size distribution is in the range of 2.5-5mm (including the end value 2.5). mm and 5mm) pulverized coal accounted for 30% by mass, less than 2.5mm pulverized coal accounted for 70% by mass); divided into the first part of the particle size range of less than 2.5mm (average particle size 0.8mm), and the particle size range is The second part of 2.5-5mm (average particle size 3.4mm); then immerse and contact as follows:

[0066] Dissolve 3 g of potassium carbonate in 50 ml of deionized water, immerse and contact the obtained potassium carbonate solution with 30 g of a 2.5-5 mm second portion of coal powder, stir well and let stand for 1 hour to obtain a contacted mixture;

[0067] Dissolve 6.3 g of potassium carbonate in 50 ml of deionized water, immerse and contact 70 g of the first part of...

Embodiment 2

[0073] The non-liangou bituminous coal (carbon content is about 60% by mass) is selected as the coal, and it is crushed to a particle size range below 5mm (the upper limit of the particle size is 5mm, of which the pulverized coal with a particle size distribution in the range of 2.5-5mm accounts for 30 Mass%, coal powder less than 2.5mm accounted for 70% by mass); divided into the first part with a particle size range of less than 2.5mm (average particle size 0.8mm), and a particle size range of 2.5-5mm (including the end value 2.5mm And 5mm) the second part (average particle size 3.4mm); then immerse contact as follows:

[0074] Dissolve 3 g of potassium carbonate in 50 ml of deionized water, immerse and contact the obtained potassium carbonate solution with 30 g of a 2.5-5 mm second portion of coal powder, stir well and let stand for 1 hour to obtain a contacted mixture;

[0075] Dissolve 3.75g of potassium carbonate in 50ml of deionized water, immerse and contact 70g of the firs...

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Abstract

The invention provides a coal catalytic gasification reaction material and a preparation method thereof. The coal catalytic gasification reaction material includes coal powder and a coal catalytic gasification catalyst loaded on the coal powder, wherein the coal powder includes a particle size Multiple parts that increase in sequence, and relative to the coal powder of the same mass unit, the amount of coal catalytic gasification catalyst loaded on the coal powder with a larger particle size in the adjacent latter part is not less than that of the adjacent previous part with a smaller particle size The amount of coal catalytic gasification catalyst loaded on the pulverized coal. The invention provides the application of the coal catalytic gasification reaction material in the coal catalytic gasification. Adopting the coal catalytic gasification reaction material of the present invention can effectively improve the gasification activity of coarse coal powder, and can reduce the loss of coal catalytic gasification catalyst caused by the carry-over of fine coal powder, thereby improving the coal gasification as a whole. s efficiency.

Description

Technical field [0001] The invention relates to a coal catalytic gasification reaction material and a preparation method thereof, and the application of the coal catalytic gasification reaction material of the invention in coal catalytic gasification. Background technique [0002] The coal resources in our country are rich and widely distributed. Low-rank coals, especially bituminous coal and lignite, have a high proportion, have the characteristics of high volatile matter and high reactivity, and are suitable as coal chemical raw materials. [0003] According to reports, more than 40% of my country’s bituminous coal reserves have the characteristics of high ash content and high ash melting point, referred to as "double high coal". The ash melting point of these coals is generally above 1400 ℃, and some even higher than 1580 ℃, and raw coal The ash content is as high as 30-40% by weight, even after washing, the ash content is as high as about 15% by weight, which brings some techni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L9/10C10J3/46
Inventor 宋守强郑岩于广欣李克忠欧书能陈兆辉盛金鹏毕继诚金阳张玉宝刘肃力郑长波侯祥生
Owner CHINA NAT OFFSHORE OIL CORP
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