Reaction device and reaction method for grading conversion combined fluidized bed

A reaction device, combined flow technology, applied in chemical instruments and methods, hydrocarbons, hydrocarbons, etc., can solve the problems of small processing capacity, low slag discharge efficiency, low methane yield, etc., and achieve heat transfer efficiency. High, not easy to block and agglomerate effect

Active Publication Date: 2019-03-01
CHINA PETROLEUM & CHEM CORP +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the technical problems mainly solved by the present invention is the problems existing in the prior art of low carbon conversion rate and gasification intensity, low methane yield, small processing capacity, low slagging efficiency and low utilization rate of pulverized coal. A new catalytic gasification combined fluidized bed reaction device and reaction method

Method used

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  • Reaction device and reaction method for grading conversion combined fluidized bed
  • Reaction device and reaction method for grading conversion combined fluidized bed
  • Reaction device and reaction method for grading conversion combined fluidized bed

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Experimental program
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Embodiment 1

[0039] The reaction process is as follows: the catalyst and the carbon-containing raw materials enter the pyrolysis furnace from the feed line for pyrolysis, the tar gas is separated and collected, and the semi-coke particles loaded with the catalyst after pyrolysis, the gasification agent and the oxidant are simultaneously at a higher line. Partial combustion and gasification reaction are carried out in the fine reactor with high speed and low particle concentration. After the reaction, the large particle slag and some incompletely reacted carbon-containing particles enter into the classification slag discharge device through the valve control. The bottom of the slag discharge device discharges the large particle slag, and the carbonaceous particles flow into the upper end of the fine reactor through the upper part of the classification slag discharge device to continue to participate in the reaction. The carbon-containing particles reacted in the fine reactor are lifted into ...

Embodiment 2

[0042] The reaction process is as follows: the catalyst and the carbon-containing raw materials enter the pyrolysis furnace from the feed line for pyrolysis, the tar gas is separated and collected, and the semi-coke particles loaded with the catalyst after pyrolysis, the gasification agent and the oxidant are simultaneously at a higher line. Partial combustion and gasification reaction are carried out in the fine reactor with high speed and low particle concentration. After the reaction, the large particle slag and some incompletely reacted carbon-containing particles enter into the classification slag discharge device through the valve control. The bottom of the slag discharge device discharges the large particle slag, and the carbonaceous particles flow into the upper end of the fine reactor through the upper part of the classification slag discharge device to continue to participate in the reaction. The carbon-containing particles reacted in the fine reactor are lifted into ...

Embodiment 3

[0045]The reaction process is as follows: the catalyst and carbon-containing raw materials enter the pyrolysis furnace from the feed pipeline for pyrolysis, the tar gas is collected after separation, and the semi-coke particles loaded with the catalyst, gasification agent and oxidant are simultaneously released at a higher line rate after pyrolysis. Partial combustion and gasification reactions are carried out in the fine reactor with high speed and low particle concentration. After the reaction, the large-particle slag and some incompletely reacted carbon-containing particles are controlled by a valve and enter the classification slag discharge device. After particle classification, the classification Large particle slag is discharged from the bottom of the slagging device, while carbon-containing particles flow into the upper end of the fine reactor through the upper part of the grading slagging device to continue to participate in the reaction. The carbon-containing particle...

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Abstract

The invention relates to a reaction device and a reaction method for a grading conversion combined fluidized bed, and mainly solves the problems of low carbon conversion rate and gasification intensity, low methane yield, low treatment capacity, slagging difficulty and relatively low powdered coal utilization rate in the prior art. Through the technical scheme, according to the reaction device anda reaction method for the grading conversion combined fluidized bed, pyrolysis is carried out on a carbon-containing raw material of a supported catalyst in a pyrolysis furnace, tar gas is collectedafter being separated, partial combustion and a gasification reaction are carried out on semi-coke particles of the supported catalyst after pyrolysis as well as a gasifying agent and an oxidizing agent in a fine reactor, a further gasification reaction is carried out on subsequently generated synthesis gas and the carbon-containing particles without reacting completely in a coarse reactor, the carbon-containing particles after reaction and a part of the catalyst are returned into the pyrolysis furnace, and slagging is carried out on ash at the bottom in an intermittent grading slagging manner; and the above technical problems are solved preferably, so that the reaction device and the reaction method can be applied to industrial production of coal grading conversion.

Description

technical field [0001] The invention relates to a combined fluidized-bed reaction device and a reaction method for graded conversion. 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 output reached 3.87 billion tons, close to half of the world's output. . my country has become the world's largest coal producer and coal consumer. The direct combustion and utilization of coal releases a large amount of pollutants, resulting in frequent occurrence of smog in many areas of my country, which seriously affects environmental problems. [0003] Coal gasification is the core technology for efficient and clean utilization of coal, and is the basis for the development of process industries such as coal-based chemical production, coal-based liquid fuels, synthetic natural gas (SNG), IGCC power gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/66C10J3/54C10J3/56C10J3/72C10J3/84C10K3/00C07C1/04C07C9/04
CPCC07C1/041C10J3/54C10J3/56C10J3/66C10J3/721C10J3/84C10J2300/0916C10J2300/093C10J2300/0943C10J2300/0956C10J2300/0959C10J2300/0966C10J2300/0969C10J2300/0973C10J2300/0976C10J2300/0986C10J2300/1603C10J2300/164C10K3/00C07C9/04
Inventor 徐俊钟思青霍威屠功毅
Owner CHINA PETROLEUM & CHEM CORP
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