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Fractional conversion combined fluidized bed reaction device and reaction method

A reaction device and combined flow technology, applied in chemical instruments and methods, hydrocarbons, hydrocarbons, etc., can solve the problems of low slag discharge efficiency, small processing capacity, low methane yield, etc. Block, the effect of high heat transfer efficiency

Active Publication Date: 2021-02-09
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 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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  • Fractional conversion combined fluidized bed reaction device and reaction method
  • Fractional conversion combined fluidized bed reaction device and reaction method
  • Fractional conversion combined fluidized bed reaction device and reaction method

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Effect test

Embodiment 1

[0039] 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 particl...

Embodiment 2

[0042] 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 particl...

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 graded conversion combined fluidized bed reaction device and a reaction method, which mainly solve the problems of low carbon conversion rate and gasification intensity, low methane yield, small processing capacity, difficult slagging and pulverized coal existing in the prior art. The problem of low utilization. The present invention adopts a graded conversion combined fluidized bed reaction device and reaction method. Carbon-containing raw materials loaded with catalysts are pyrolyzed in a pyrolysis furnace, and tar gas is collected after separation. After pyrolysis, semi-coke particles loaded with catalysts are mixed with gas The oxidizing agent and oxidant are partially combusted and gasified in the fine reactor, and then the syngas and unfinished carbon-containing particles are further gasified in the coarse reactor, and the reacted carbon-containing particles and part of the catalyst continue to Returning to the pyrolysis furnace, the technical scheme of discharging the ash at the bottom through intermittent classification and slagging can better solve the above technical problems and can be applied to the industrial production of coal classification conversion.

Description

technical field [0001] The invention relates to a 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), IGCC power genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/66C10J3/54C10J3/56C10J3/72C10J3/84C10K3/00C07C1/04C07C9/04
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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