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High-efficiency graded conversion combined fluidized bed reaction device and reaction method

A reaction device and combined flow technology, which is applied in the field of high-efficiency graded conversion combined fluidized bed reaction device, can solve the problems of low methane yield, low utilization rate of pulverized coal, low carbon conversion rate and low gasification intensity, etc.

Active Publication Date: 2021-05-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the technical problems mainly solved by the present invention is the low carbon conversion rate and gasification intensity, low methane yield, difficult slag discharge and low utilization rate of pulverized coal existing in the prior art. It provides a new high-efficiency graded conversion Combined fluidized bed reaction device and reaction method

Method used

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  • High-efficiency graded conversion combined fluidized bed reaction device and reaction method
  • High-efficiency graded conversion combined fluidized bed reaction device and reaction method
  • High-efficiency graded conversion combined fluidized bed reaction device and reaction method

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Effect test

Embodiment 1

[0038] The carbon-containing raw material loaded with catalyst enters the pyrolysis furnace for rapid pyrolysis, and the pyrolysis gas and semi-coke after pyrolysis are separated in the pyrolysis furnace and cyclone separator, and the coal tar enters the follow-up equipment for purification and separation; after separation The semi-coke flows through the first return mechanism and the second return mechanism respectively, and enters the first reaction zone at the same time as the gasification agent for mixing, combustion and partial gasification reaction. The carbon-containing particles enter the classification and slag discharge device through valve control. After the particle classification, the closed hopper at the bottom is controlled in an orderly manner to discharge large particle slag, while the carbon-containing particles flow into the upper end of the first reaction zone through the upper part of the classification and slag discharge device to continue to participate in...

Embodiment 2

[0041]The carbon-containing raw material loaded with catalyst enters the pyrolysis furnace for rapid pyrolysis, and the pyrolysis gas and semi-coke after pyrolysis are separated in the pyrolysis furnace and cyclone separator, and the coal tar enters the follow-up equipment for purification and separation; after separation The semi-coke flows through the first return mechanism and the second return mechanism respectively, and enters the first reaction zone at the same time as the gasification agent for mixing, combustion and partial gasification reaction. The carbon-containing particles enter the classification and slag discharge device through valve control. After the particle classification, the closed hopper at the bottom is controlled in an orderly manner to discharge large particle slag, while the carbon-containing particles flow into the upper end of the first reaction zone through the upper part of the classification and slag discharge device to continue to participate in ...

Embodiment 3

[0044] The carbon-containing raw material loaded with catalyst enters the pyrolysis furnace for rapid pyrolysis, and the pyrolysis gas and semi-coke after pyrolysis are separated in the pyrolysis furnace and cyclone separator, and the coal tar enters the follow-up equipment for purification and separation; after separation The semi-coke flows through the first return mechanism and the second return mechanism respectively, and enters the first reaction zone at the same time as the gasification agent for mixing, combustion and partial gasification reaction. The carbon-containing particles enter the classification and slag discharge device through valve control. After the particle classification, the closed hopper at the bottom is controlled in an orderly manner to discharge large particle slag, while the carbon-containing particles flow into the upper end of the first reaction zone through the upper part of the classification and slag discharge device to continue to participate in...

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Abstract

The invention relates to a high-efficiency graded conversion combined fluidized bed reaction device and reaction method, which mainly solves the problems of low carbon conversion rate and gasification intensity, low methane yield, difficult slagging and low utilization rate of pulverized coal in the prior art question. The present invention adopts a high-efficiency graded conversion combined fluidized bed reaction device and reaction method, and the carbon-containing raw material loaded with the catalyst is pyrolyzed in the pyrolysis furnace, and the pyrolyzed tar gas is collected after separation, and the semi-coke particles loaded with the catalyst Combustion and gasification reaction with gasification agent in the first reaction zone, then enter the second reaction zone for gasification reaction, and then the generated syngas and unfinished carbon-containing particles are further gasified in the third reaction zone The reaction, the carbon-containing particles and part of the catalyst after the reaction continue to return to the pyrolysis furnace, and the ash at the bottom of the reaction zone is monitored by acoustic emission in the graded slag discharge device. The above-mentioned technical problems can be solved, and it can be applied to the industrial production of coal graded conversion.

Description

technical field [0001] The invention relates to a high-efficiency graded conversion combined fluidized bed reaction device and a reaction method. Background technique [0002] my country is a large coal country with abundant coal resources. With the rapid development of my country's economy, the production and consumption of coal have been rising steadily. In 2014, my country's coal production reached 3.87 billion tons, which is close to half of the world's production. . my country has become the world's largest coal producer and coal consumer. The direct combustion of coal releases a large amount of pollutants, which leads to frequent occurrence of smog in many areas of our country and seriously affects the environmental problems. [0003] Coal gasification is the core technology for efficient and clean utilization of coal, and the basis for the development of process industries such as coal-based chemical production, coal-based liquid fuels, synthetic natural gas (SNG), I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/66C10J3/54C10J3/56C10J3/72C10J3/84C10K3/00C07C9/04C07C4/06
CPCC07C4/06C07C2527/232C10J3/54C10J3/56C10J3/66C10J3/721C10J3/84C10J2300/0916C10J2300/093C10J2300/0943C10J2300/0956C10J2300/0959C10J2300/0966C10J2300/0969C10J2300/0973C10J2300/0976C10J2300/0986C10J2300/1603C10J2300/164C10K3/00C07C9/04Y02P20/52
Inventor 徐俊钟思青高攀金渭龙
Owner CHINA PETROLEUM & CHEM CORP
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