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Power generation system based on chemical loop space division oxygen generation and CO2 gathering before combustion

A technology of power generation system and chemical chain, applied in chemical instruments and methods, inorganic chemistry, combined combustion mitigation, etc., can solve problems such as the decline of the efficiency of the whole plant, and achieve the effects of simple installation, reduction of installation size, and reduction of energy consumption for oxygen production.

Inactive Publication Date: 2017-08-18
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The integration of chemical chain air separation oxygen production and integrated coal gasification combined cycle system can solve traditional technical problems, for example, the decline in plant efficiency caused by traditional cryogenic air separation technology

Method used

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  • Power generation system based on chemical loop space division oxygen generation and CO2 gathering before combustion
  • Power generation system based on chemical loop space division oxygen generation and CO2 gathering before combustion

Examples

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Embodiment 1

[0048] The oxygen carrier and air undergo an oxidation reaction in the oxidation reactor 2. After the reaction product is separated by the first gas-solid separator 3, the oxidized oxygen carrier enters the reduction reactor 4 to undergo a reduction reaction, and the separated gas enters the first gas-solid separator. The heat exchanger 1 preheats the incoming air; the pressure of the oxidation reactor 2 and the reduction reactor 4 is controlled at 1 bar; the product generated by the reduction reactor 4 is separated by the second gas-solid separator 5 again, The reduced oxygen carrier returns to the oxidation reactor 2 for reaction, and the separated gas enters the second heat exchanger 6, and the water in the second heat exchanger 6 is heated into water vapor, and the water vapor enters the reduction reactor, The gas from the second heat exchanger 6 passes through the first condenser 7 to obtain pure oxygen, and the pure oxygen enters the gasification reactor 9 through the fir...

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Abstract

The invention discloses a power generation system based on chemical loop space division oxygen generation and CO2 gathering before combustion. The power generation system comprises an oxidation reduction unit, a gasification reactor, a dust remover, a water gas conversion unit, a desulfurizer, a decarburization unit, a gas turbine device and a waste heat boiler-steam turbine device which are connected with each other in turn through a pipeline. The power generation system disclosed by the invention adopts the chemical loop space division oxygen generation for replacing the traditional deep cooling air separation oxygen generation, so that the problem of pure oxygen sources of the integrated gasification combined cycle can be solved, and the oxygen carrier cyclic regeneration in the chemical loop space division oxygen generation process can be realized. The power generation system disclosed by the invention can realize the near zero emission of carbon dioxide in the manner of gathering carbon dioxide before combustion.

Description

technical field [0001] The present invention relates to power generation systems. More specifically, it relates to a method based on chemical looping air separation for oxygen production and pre-combustion CO 2 Captured power generation system. Background technique [0002] On November 25, 2009, the executive meeting of the State Council of my country decided that by 2020, the unit GDP CO 2 Emissions were reduced by 40-45% compared to 2005, and it was the first time that China officially announced the action goal of controlling greenhouse gas emissions. The development of my country's electric power industry is under the dual pressure of resources and environment, so we must explore a new development model. The integrated coal gasification combined cycle represents the development direction of clean coal power technology, while CO with pre-combustion 2 The captured integrated coal gasification combined cycle system has achieved the ultimate advantage of this strong envir...

Claims

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Application Information

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IPC IPC(8): C10J3/48C10K1/00C10K1/02F02C6/00F02C6/18F01K23/10F01D15/10C01B32/50
CPCC10J3/48C10J2300/093C10J2300/1215C10J2300/1612C10J2300/165C10J2300/1675C10K1/002C10K1/004C10K1/02F01D15/10F01K23/10F02C6/00F02C6/18Y02E20/16Y02E20/18Y02E50/10Y02P20/129
Inventor 何伯述曹旸丁广超严林博段志鹏
Owner BEIJING JIAOTONG UNIV
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