Supercritical carbon dioxide power generation and coal gasification coupled system and method

A technology for gasification of carbon dioxide and coal, which is applied in the gasification process, the manufacture of combustible gases, and the production of bulk chemicals to achieve the effect of eliminating the need for treatment

Pending Publication Date: 2018-10-23
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology

There have been no reports on the use of supercritical carbon dioxide as a gasification agent for coal gasification

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  • Supercritical carbon dioxide power generation and coal gasification coupled system and method

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0022] refer to figure 1 , a supercritical carbon dioxide power generation coupled coal gasification system according to the present invention, the supercritical carbon dioxide power generation coupled coal gasification system includes a supercritical carbon dioxide power generation system and a supercritical carbon dioxide coal gasification system. The supercritical carbon dioxide power generation system includes compressor 1, turbine 2, generator 3, high-pressure storage tank 4, low-pressure storage tank 14, combustion chamber heat exchanger 7, regenerator 6 and precooler 13, supercritical carbon dioxide coal The gasification system includes pulverized coal pressurization device 9 , gasifier 10 , combustion chamber 11 and purifier 12 . Compressor 1, turbine 2 and generator 3 are connected ...

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Abstract

The invention provides a supercritical carbon dioxide power generation and coal gasification coupled system and method; the system comprises a supercritical carbon dioxide power generation system anda supercritical carbon dioxide coal gasification system. The supercritical carbon dioxide power generation system includes a compressor, a turbine, a power generator, a high pressure storage tank, a low pressure storage tank, a combustion chamber heat exchanger, a heat regenerator and a pre-cooler; the supercritical carbon dioxide coal gasification system includes a pulverized coal pressurizationdevice, a gasification furnace, a combustion chamber and a purifier. The system and method can adopt supercritical carbon dioxide as a gasification agent for coal gasification, and gasified coal gas is used in supercritical carbon dioxide power generation.

Description

technical field [0001] The invention relates to the fields of supercritical carbon dioxide power generation and coal gasification, in particular to a supercritical carbon dioxide power generation coupled coal gasification system and method. Background technique [0002] Coal gasification refers to the process in which coal reacts with gasification agent at high temperature in the gasifier to generate coal gas. The basic conditions of the coal gasification process are: gasifier, gasification raw material and gasification agent. The gasifier is the core equipment of coal gasification, and the gasification agent is oxygen or air and water vapor. Coal gasification process is the basis of coal chemical industry, IGCC, coal indirect liquefaction, etc. After coal gasification, synthesis gas is produced, and the effective components are CO, H 2 and CH 4 , for chemical synthesis or combustion power generation. Most of the existing gasification processes are self-heating gasificat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/00
CPCC10J3/00C10J2300/165C10J2300/1675Y02P20/54
Inventor 张纯杨玉白文刚李红智姚明宇蒋世希
Owner XIAN THERMAL POWER RES INST CO LTD
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