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Composite staged gasification reaction device and method thereof

A gasification reaction and composite technology, which is used in the manufacture of combustible gas and the petroleum industry, can solve the problems of narrow selection of raw materials, low carbon conversion rate and gasification intensity, complex by-products, etc., to achieve uniform flame temperature distribution and conversion. The effect of improving the rate and simplifying the target product

Active Publication Date: 2020-09-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the main technical problems to be solved by the present invention is the narrow range of raw material selection, low carbon conversion rate and gasification intensity, and complex by-products in the existing single gasification technology. The present invention proposes a composite hierarchical gasification reaction device, The device consists of a conical fluidized bed gasification section and a jet flow gasification section. Carbon-containing solid raw materials, gasification agents, and oxidants are passed into the conical fluidized bed gasification section for gasification at 600-1000°C to generate a First-stage syngas, the incompletely converted fine powder particles and organic matter entrained in the first-stage syngas are further converted into syngas in the jet gasification section

Method used

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  • Composite staged gasification reaction device and method thereof
  • Composite staged gasification reaction device and method thereof
  • Composite staged gasification reaction device and method thereof

Examples

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Effect test

Embodiment 1

[0034] A composite staged gasification reaction device, the inner diameter of the lower end of the conical fluidized bed gasification section is 0.5m, the maximum inner diameter of the upper end is 1m, and the height is 5m. The angle between the conical mouth of the gas distributor is 90°. There are 20 circles of air holes, the opening rate is 2%, the air holes are evenly arranged along the circumference, the diameter of each circle of air holes increases radially along the distributor, the air holes near the center of the slag discharge pipe are the smallest, the smallest air hole is 1mm, the largest air hole is 10mm, the multi-channel nozzle The heads of the center nozzle, the inner ring nozzle and the outer ring nozzle all adopt a tapered structure, and the inclination angle with the central axis is 30°.

[0035] Through the feeder, the 0-10mm Inner Mongolia lignite enters the conical fluidized bed gasification section through the raw material inlet pipe, and when the temper...

Embodiment 2

[0037] A composite staged gasification reaction device, the inner diameter of the lower end of the conical fluidized bed gasification section is 0.5m, the maximum inner diameter of the upper end is 2.5m, and the height is 5m. The angle between the conical mouth of the gas distributor is 90°. There are 20 circles of air holes, the opening rate is 2%, the air holes are evenly arranged along the circumference, the diameter of each circle of air holes increases radially along the distributor, the air holes near the center of the slag discharge pipe are the smallest, the smallest air hole is 1mm, the largest air hole is 10mm, multi-channel nozzle The heads of the central nozzle, the inner ring nozzle and the outer ring nozzle all adopt a tapered structure, and the inclination angle with the central axis is 30°.

[0038] Through the feeder, the 0-10mm Inner Mongolia lignite enters the conical fluidized bed gasification section through the raw material inlet pipe, and when the tempera...

Embodiment 3

[0040] A composite staged gasification reaction device, the inner diameter of the lower end of the conical fluidized bed gasification section is 0.5m, the maximum inner diameter of the upper end is 4m, and the height is 5m. The angle between the conical mouth of the gas distributor is 90°. There are 20 circles of air holes, the opening rate is 2%, the air holes are evenly arranged along the circumference, the diameter of each circle of air holes increases radially along the distributor, the air holes near the center of the slag discharge pipe are the smallest, the smallest air hole is 1mm, the largest air hole is 10mm, the multi-channel nozzle The heads of the center nozzle, the inner ring nozzle and the outer ring nozzle all adopt a tapered structure, and the inclination angle with the central axis is 30°.

[0041] Through the feeder, the 0-10mm Inner Mongolia lignite enters the conical fluidized bed gasification section through the raw material inlet pipe, and when the temper...

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Abstract

The invention relates to a combined staged gasification reaction device and a method thereof, and solves the problems of low carbon conversion rate and low gasification strength and complex synthesisgas components in the prior fluidized bed gasification technology. The device consists of a lower conical fluidized bed gasification section and an upper jet gasification section. The lower conical fluidized bed gasification section realizes the gasification of solid material of large particles containing carbon at 600-1000 DEG C. The upper jet gasification section converts incompletely convertedfine powder particles and organic matters into synthesis gas at 1200-1500 DEG C. The lower conical fluidized bed gasification section makes the solid particles containing carbon stratified and gasified. The two gasification sections are connected by using a multi-channel nozzle. The device that efficiently and rapidly converts the incompletely converted fine powder particles and the organic matters into synthesis gas can be applied to the field of gasification of solid materials containing carbon.

Description

technical field [0001] The invention relates to a composite graded gasification reaction device and a method thereof, in particular to a composite graded gasification reaction device and method of a fluidized bed and an entrained flow bed. Background technique [0002] my country's energy structure of "relatively rich in coal but scarce in 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 sulfide, nitride, carbon dioxide and dust emitted in my country come from coal combustion. Coal gasification is one of the basic core technologies for the efficient and clean utilization of coal. Common technologies, key technologies and leading technologies in industries such as hydrogen production and fuel cells. [0003] The core e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/72
CPCC10J3/721
Inventor 屠功毅宗弘元钟思青徐俊
Owner CHINA PETROLEUM & CHEM CORP
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