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

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

Active Publication Date: 2019-03-01
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 staged conversion combined fluidized bed reaction device and reaction method
  • High-efficiency staged conversion combined fluidized bed reaction device and reaction method
  • High-efficiency staged 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 staged conversion combined fluidized bed reaction device and reaction method, and mainly solves the problems of low carbon conversion rate and gasification intensity, relatively low methane yield, difficulty in slag discharge and low utilization rate of pulverized coal in the prior art. By adopting the high-efficiency staged conversion combined fluidizedbed reaction device and the reaction method, a catalyst-loaded carbonaceous raw material is pyrolyzed in a pyrolysis furnace, a pyrolyzed tar gas is separated and collected, catalyst-loaded semi-cokeparticles and a gasification agent are subjected to combustion and a gasification reaction in a first reaction zone, then the reaction product enters a second reaction zone for the gasification reaction, and then the produced synthesis gas and unreacted carbonaceous particles are further subjected to the gasification reaction in a third reaction zone, the reacted carbonaceous particles and part ofthe catalyst after the reaction continue to be returned to the pyrolysis furnace, and ash residue at the bottoms of the reaction zones is intermittently discharged after being monitored by the acoustic emission in a staged slag discharge device; by adopting the technical scheme, the above technical problems can be better solved; and the reaction device and the reaction method can be applied to industrial production of coal staged 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 Applications(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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