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Solid fuel gasification method and system based on chemical working medium cycle

A solid fuel and working medium circulation technology, applied in fuel supply, petroleum industry, combustion equipment, etc., can solve the problems of effective energy loss and other problems, achieve the effect of increasing concentration, significantly reducing carbon dioxide emissions, and reducing emissions

Inactive Publication Date: 2015-05-20
NORTH CHINA INST OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The utilization of solid fuel is mainly the utilization of combustion heat energy. Since the combustion and heat energy transfer process of solid fuel is a process of entropy increase, there is a loss of effective energy. It is necessary to improve the effective energy efficiency of the solid fuel utilization process.

Method used

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  • Solid fuel gasification method and system based on chemical working medium cycle

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Embodiment Construction

[0013] Taking the carbon dioxide working medium as an example, the invention will be further described in conjunction with the accompanying drawings:

[0014] A solid fuel gasification system based on chemical working medium cycle, see figure 1 , the system includes a gasification reactor 1, a heat pipe absorbing section 2, a heat pipe 3, a gas-heat source medium heat exchanger 4, a gas combustion application device 5, a flue gas-heat source medium heat exchanger 6, and a heat source medium temperature riser 7 , a liquid working medium vaporizer 8, a liquid working medium pump 9, a carbon dioxide trap 10 and a heat source medium pressure feeder 11; the gasification reactor 1 and the heat pipe heat exchange section 2 are integrated by the middle clapboard, the clapboard A plurality of heat pipes 3 are nested on the upper part; the upper part of the gasification reactor 1 is provided with a crude gas outlet pipe, which is connected with the gas-heat source medium heat exchanger ...

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Abstract

The invention relates to a solid fuel gasification method and system based on chemical working medium cycle, and particularly relates to a process for increasing available energy of fuel gas in a solid fuel gasification process through reaction of carbon dioxide or vapor which serves as a chemical working medium and carbon and other energetic carriers. The system comprises a gasification reactor, a heat pipe heat-absorbing section, a heat pipe, a fuel gas-heat source medium heat exchanger, a fuel gas combustion application device, a smoke-heat source medium heat exchanger, a heat source medium heater, a liquid-state working medium vaporizer, a liquid working medium pump, a carbon dioxide collector and a heat source medium pressure feeder. The method and the system have the advantages of increasing the value of fuel gasified secondary energy; according to the principle, carbon and the chemical working medium are subjected to heat absorption and gasification at a temperature lower than a combustion reaction temperature, and the available energy of the product gas fuel can be increased.

Description

Technical field: [0001] The invention belongs to the technology of conversion and utilization of carbon-containing solid fuel, and particularly relates to a process and system for gasification reaction with carbon-containing solid fuel using carbon dioxide and water vapor as chemical working substances. Background technique: [0002] Coal and biomass are solid fuels. Due to the large reserves of coal and biomass as a renewable energy source, solid fuel will remain an important energy source for a long time now and even in the future. The utilization of solid fuel is mainly the utilization of combustion heat energy. Since the combustion and heat energy transfer process of solid fuel is a process of increasing entropy, there is a loss of effective energy. It is necessary to improve the effective energy efficiency of the solid fuel utilization process. Invention content: [0003] The purpose of the present invention is to provide a solid fuel gasification system with high ef...

Claims

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Application Information

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IPC IPC(8): C10J3/00C10J3/82C10J3/72F23K5/00
Inventor 李文军项友谦苏倩倩
Owner NORTH CHINA INST OF SCI & TECH
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