Coal-based energy chemical product poly-generation system and method

A chemical product, polygeneration technology, applied in the fuel system, petroleum industry, energy input and other directions, can solve problems such as unsolved, in the experimental stage, no systematic consideration of emission reduction and resource utilization, etc., to save equipment, simplify The effect of the process flow

Active Publication Date: 2010-06-30
ENN SCI & TECH DEV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, at present, coal-based energy polygeneration technologies developed successively in various countries in the world have not systematically considered CO 2 Emission reduction and resource utilization issues, therefore, how to control and reduce the CO produced during the conversion and combustion of coal 2 , and its resource utilization has become the primary issue in the development of new coal chemical technology
Given CO 2 Stable chemical properties, European and American countries have been studying CO in coal-based polygeneration systems in recent years 2 The issue of emissions was raised when the CO 2 Capture and storage solutions, however, are still experimental and do not inherently solve CO in the long run. 2 The problem

Method used

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  • Coal-based energy chemical product poly-generation system and method
  • Coal-based energy chemical product poly-generation system and method

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Experimental program
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Effect test

Embodiment 1

[0056] refer to figure 2 According to the process route, the electric energy required for the production of hydrogen and oxygen by composite energy is mainly from the wind-solar hybrid power station, and at the same time matching the low-peak electric energy, the SPE electrolyzer water electrolysis system is used for water electrolysis. The oxygen produced by water electrolysis is directly transported to the above-ground gasifier as raw material for coal gasification, and the coal is gasified in the gasifier to produce H 2 , CO and CO 2 (sometimes containing CH 4 )-based crude synthesis gas, the crude synthesis gas is purified to obtain H 2 and CO-based refined synthesis gas, while the hydrogen produced by electrolysis is transported to different sections of the coal-based polygeneration module for hydrogen distribution, such as Figure 9process route. Part of the refined synthesis gas is synthesized into methanol by hydrogenation to achieve the hydrogen-to-carbon ratio r...

Embodiment 2

[0058] refer to image 3 According to the process route, the electric energy required for the production of hydrogen and oxygen by composite energy comes from the wind-solar hybrid power station, and at the same time matches the low-peak electric energy, and uses the solid oxide electrolyte electrolyzer water electrolysis system for water electrolysis. Part of the oxygen produced by water electrolysis is used alone or mixed with other gasification agent components and then blown into the underground gasification channel as a gasification agent for underground coal gasification. Coal is produced in the form of H after underground gasification 2 , CO, CH 4 and CO 2 Mainly crude synthesis gas, the crude synthesis gas is purified to obtain H 2 , CO and CH 4 Refined synthesis gas mainly; while the hydrogen produced by electrolysis is transported to different sections of the coal-based polygeneration module for hydrogen distribution, such as Figure 9 process route. Part of th...

Embodiment 3

[0060] refer to Figure 4 According to the process route, the small amount of electricity required for bioelectrochemical hydrogen production comes from wind-solar hybrid power stations, and at the same time matches the low-peak electricity. Coal is gasified in a catalytic gasifier to produce CH 4 、H 2 , CO 2 and CO-based crude synthesis gas, the crude synthesis gas is purified to obtain H 2 , CO and CH 4 Mainly refined synthetic gas. The hydrogen produced by bioelectrochemical hydrogen production is sent to different sections of the coal-based polygeneration module for hydrogen distribution, such as Figure 9 process route. Part of the refined synthesis gas is synthesized into methanol by hydrogenation to achieve the hydrogen-to-carbon ratio required for methanol, and the other part of the refined synthesis gas is mixed with the purge gas generated by methanol synthesis to synthesize methane by hydrogenation to achieve the required hydrogen-to-carbon ratio for methane s...

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Abstract

The invention provides a coal-based energy chemical product poly-generation system and a coal-based energy chemical product poly-generation method. Renewable energy sources and renewable resources are introduced into the process of producing coal-based energy chemical products, and coal is converted into clean coal-based energy chemical products and/or clean electric power so as to realize comprehensive utilization of wastewater, waste gas and solid waste and near-zero emission of carbon dioxide.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical industry, and specifically relates to a new clean, efficient and zero-emission coal-based energy chemical product polygeneration system and method. Background technique [0002] In the world's primary energy consumption, coal is the fastest-growing fossil fuel, and it is difficult for many countries in the world to fundamentally change the coal-based energy structure for a long period of time. However, coal is also the fossil with the highest carbon content. Fuels, in the process of combustion and conversion, inevitably produce a large amount of greenhouse gases. The impact of greenhouse gas emissions on global climate change has attracted the attention of the world, and it is urgent to solve the problem of greenhouse gas emissions. Therefore, how to mine, develop and utilize coal resources cleanly and efficiently is a major challenge facing the world. [0003] Coal gasification (coal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/86C10G1/00F01K11/02F01D15/10F02B43/00F02C6/00
CPCY02T10/32Y02T10/16Y02E20/14Y02P20/129Y02P20/133Y02T10/12Y02T10/30
Inventor 甘中学徐春保李金来刘敏胜
Owner ENN SCI & TECH DEV
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