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Fluidized bed gasification reaction device and method

A fluidized bed gasification and reaction device technology, applied in chemical instruments and methods, granular/powdered fuel gasification, combustible gas production, etc., can solve the complex composition of syngas, low carbon conversion rate, and low gasification intensity and other problems, to achieve the effect of improving gasification intensity, high circulation volume, and improving fluidization quality

Active Publication Date: 2022-07-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the main technical problems to be solved by the present invention is the low carbon conversion rate, poor fluidization quality, low gasification intensity and complex synthesis gas composition in the existing fluidized bed gasification technology. High-diameter circulating fluidized bed gasification reaction device, the pulsating air flow cooperates with the variable-diameter fluidized bed to achieve stratified gasification and achieve good fluidization quality, and the round tube flow sealing valve cooperates with the accumulator to achieve high circulation and improve gasification Intensity, the generated primary syngas is subjected to secondary gasification, thereby increasing the carbon conversion rate and obtaining high effective component syngas

Method used

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  • Fluidized bed gasification reaction device and method
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  • Fluidized bed gasification reaction device and method

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Effect test

Embodiment 1

[0027] A fluidized bed gasification reaction device, the diameter of the bottom of the variable diameter fluidized bed is d 1 0.5m, the middle and lower diameter d 2 for d 1 3 times of the middle and upper diameter d 3 for d 2 3 times of; stock leg diameter e 0 is 0.1m, the diameter e of the delivery chamber of the circular tube flow sealing valve 1 for e 0 1.5 times the horizontal channel diameter e 3 for e 0 1 times of , the overflow height l is e 3 2 times.

[0028] The 0-10mm lignite enters the variable diameter fluidized bed through the raw material inlet pipe, and the gasification agent enters the gas distribution chamber from the gasification agent inlet pipe through the pulsating gas flow controllers II and III, and then enters the variable diameter fluidized bed from the gas distributor. In the bed, the oxidant enters the variable diameter fluidized bed from the oxidant inlet pipe through the pulsating gas flow controller I from the central slag discharge pip...

Embodiment 2

[0030] A fluidized bed gasification reaction device, the diameter of the bottom of the variable diameter fluidized bed is d 1 0.5m, the middle and lower diameter d 2 for d 1 1 times, the upper middle diameter d 3 for d 2 3 times of; stock leg diameter e 0 is 0.1m, the diameter e of the delivery chamber of the circular tube flow sealing valve 1 for e 0 1.5 times the horizontal channel diameter e 3 for e 0 1 times of , the overflow height l is e 3 2 times. The 0-10mm lignite enters the variable diameter fluidized bed through the raw material inlet pipe, and the gasification agent enters the gas distribution chamber from the gasification agent inlet pipe through the pulsating gas flow controllers II and III, and then enters the variable diameter fluidized bed from the gas distributor. In the bed, the oxidant enters the variable diameter fluidized bed from the oxidant inlet pipe through the pulsating gas flow controller I from the central slag discharge pipe, and the Reyn...

Embodiment 3

[0032] A fluidized bed gasification reaction device, the diameter of the bottom of the variable diameter fluidized bed is d 1 0.5m, the middle and lower diameter d 2 for d 1 8 times, the middle and upper diameter d 3 for d 2 3 times of; stock leg diameter e 0 is 0.1m, the diameter e of the delivery chamber of the circular tube flow sealing valve 1 for e 0 1.5 times the horizontal channel diameter e 3 for e 0 1 times of , the overflow height l is e 3 2 times. The 0-10mm lignite enters the variable diameter fluidized bed through the raw material inlet pipe, and the gasification agent enters the gas distribution chamber from the gasification agent inlet pipe through the pulsating gas flow controllers II and III, and then enters the variable diameter fluidized bed from the gas distributor. In the bed, the oxidant enters the variable diameter fluidized bed from the oxidant inlet pipe through the pulsating airflow controller I from the central slag discharge pipe, and the R...

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Abstract

The invention relates to a fluidized bed gasification reaction device and method, and solves the problems of low carbon conversion rate, poor fluidization quality, low gasification intensity and complex synthesis gas composition existing in the existing fluidized bed gasification technology. The invention is mainly composed of a variable diameter fluidized bed, a pulsating air flow controller, a cylindrical flow sealing valve, an accumulator, a high-efficiency cyclone device and a purification system. The pulsating airflow cooperates with the variable diameter fluidized bed to realize stratified gasification and achieve excellent High fluidization quality, round tube flow sealing valve cooperates with accumulator to achieve high circulation volume and improve gasification intensity, and the first-stage syngas produced is subjected to secondary gasification, thereby improving carbon conversion rate and obtaining high effective composition syngas. The technical solution can be applied to the field of energy and chemical industry.

Description

technical field [0001] The invention relates to a fluidized bed gasification reaction device and method, belonging to the field of energy chemical industry. Background technique [0002] my country's energy structure of "relatively abundant coal and lack of oil and gas resources" determines that coal has been the most important energy and chemical raw material in my country for a long time, and it will be difficult to change in a long period of time in the future. The extensive development and use of coal has caused serious environmental pollution. Most of the sulfides, nitrides, carbon dioxide and dust emitted in my country come from coal combustion. Coal gasification is one of the basic core technologies for efficient and clean utilization of coal. It is the development of coal-based natural gas, coal-based chemicals (ammonia, methanol, dimethyl ether, etc.) Common technologies, key technologies and leading technologies in industries such as hydrogen production and fuel c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/00B01J8/04C10J3/48C10J3/72C10J3/82
CPCB01J8/0476B01J8/0055C10J3/485C10J3/721C10J3/82
Inventor 屠功毅钟思青徐俊金渭龙
Owner CHINA PETROLEUM & CHEM CORP