Method for catalytically gasifying coal
A technology of catalytic gasification and gasification agent, which is applied in gasification process, granular/powder fuel gasification, and production of combustible gas, etc., can solve the problems of catalyst loss, increase of gasification cost, reduction of catalyst concentration and catalytic efficiency, etc. , to achieve the effect of reducing catalyst loss and improving yield
Inactive Publication Date: 2020-09-04
ENN SCI & TECH DEV
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Problems solved by technology
The catalyst will volatilize and migrate during the gasification process, and part of the catalyst will be entrained into the crude gas along with the gasification agent, resulting in a decrease in the concentration and catalytic efficiency of the catalyst in the reaction raw material; the catalyst in the crude gas is difficult to recover, resulting in catalyst loss. cost increase
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[0025] In order to be able to understand the above-mentioned objects, features and advantages of the present disclosure more clearly, the solutions of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other if there is no conflict.
[0026] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways different from those described here; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure. Not all examples.
[0027] The present disclosure provides a method for catalytic gasification of coal, which is divided into a first raw material and a second raw material according to the volatilization characteristics of different types of coal, and the two raw materials are respectivel...
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The invention relates to a method for catalytically gasifying coal, and the method comprises the following steps: feeding a first raw material and a first gasifying agent into a first reactor, and carrying out aerobic catalytic gasification reaction on the first raw material and the first gasifying agent at a first preset temperature and a first preset pressure, wherein the gas product of aerobiccatalytic gasification at least comprising carbon monoxide, hydrogen and tar; feeding a second raw material and a second gasifying agent into a second reactor, and carrying out anaerobic catalytic gasification reaction on the second raw material and the second gasifying agent at a second preset temperature and a second preset pressure, wherein the second gasifying agent contains a gas product; according to the catalytic gasification method of the coal, the loss of the catalyst can be reduced, and the yield of the light tar in the gasification process is improved.
Description
Technical field [0001] The present disclosure relates to the technical field of coal catalytic gasification, in particular to a method of coal catalytic gasification. Background technique [0002] Coal catalytic gasification technology can efficiently and cleanly utilize coal resources. The general process of coal catalytic gasification technology is that coal is combined with steam (H) under certain pressure and temperature conditions. 2 O), hydrogen (H 2 ), the gasification agent composed of carbon monoxide (CO) undergoes a gasification reaction under the catalysis of the catalyst to generate high concentration of methane (CH 4 ). Compared with other coal gasification technologies, coal catalytic gasification technology has the advantages of high methane content, low temperature required for gasification reaction, and by-product tar at the same time. [0003] The existing catalytic gasification process is to mix coal and catalyst into the gasification furnace at one time, contro...
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Login to View More IPC IPC(8): C10J3/46C10J3/66C10J3/62C10J3/84C10J3/72
CPCC10J3/46C10J3/62C10J3/66C10J3/721C10J3/84C10J2300/093C10J2300/0959C10J2300/0976C10J2300/0986C10J2300/1603C10J2300/1628Y02P20/52
Inventor 祖静茹刘雷李克忠李佳
Owner ENN SCI & TECH DEV