Multi-channel liquid stage fuel partial oxidation generating synthesis gas burner and uses thereof

A liquid fuel, multi-channel technology, applied in the direction of burners, lighting and heating equipment, etc., can solve the problems of burner cooling system leakage, short burner service life, poor burner atomization effect, etc., to achieve enhanced aerodynamics, Effect of long service life and improved atomization performance

Active Publication Date: 2009-09-02
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Improper design of the burner structure will lead to poor atomization effect of the burner, ablation of the end of the burner, leakage of the burner cooling system, etc., resulting in serious consequences
Existing burner patented technologies, such as Chinese patent application numbers: 93118217.4, 94214422.8, 95111750.5, etc., have problems such as poor burner atomization effect and short burner service life

Method used

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  • Multi-channel liquid stage fuel partial oxidation generating synthesis gas burner and uses thereof
  • Multi-channel liquid stage fuel partial oxidation generating synthesis gas burner and uses thereof
  • Multi-channel liquid stage fuel partial oxidation generating synthesis gas burner and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] After the above-mentioned burner is installed in the gasifier disclosed in Chinese Patent No. 98110616.1, when the fuel is a coal-water slurry with a concentration of 61% (mass %), use 98% (volume) pure oxygen as the gasification agent to gasify The result is the effective gas component CO+H in the syngas 2 (vol%) 83.5%, ash residual carbon is 3%, and the continuous service life of the burner can reach 4 months, fully meeting the requirements of coal-water slurry gasification.

[0042] The structural parameters of said burner are as follows:

[0043] ω is 5°, σ is 85°; α is 5°, β is 80°; ε is 10°, γ is 40°; is 50°;

[0044] The ratio of the spout diameter d of the center nozzle 4 to the straight section height h of the spout, i.e. h: d=0.1;

[0045] The distance r between the nozzle end face of the center nozzle 4 and the nozzle end face of the inner ring nozzle 3 is 0.5 mm;

[0046] The distance s between the nozzle end face of the inner ring nozzle 3 and the nozz...

Embodiment 2

[0053]After the above-mentioned burner is installed in the gasifier disclosed in Chinese patent 98110616.1, when the fuel is a coal-water slurry with a concentration of 63% (mass %), with 99.6% pure oxygen as the gasification agent, the gasification result is a synthetic Effective gas composition in gas CO+H 2 (vol%) 85.5%, ash residual carbon is 3%, the continuous service life of the burner can reach 4 months, which fully meets the requirements of coal-water slurry gasification.

[0054] The structural parameters of said burner are as follows:

[0055] ω is 10°, σ is 80°; α is 10°, β is 70°; ε is 20°, γ is 30°; is 60°;

[0056] The ratio of the spout diameter d of the center nozzle 4 to the straight section height h of the spout, i.e. h: d=1;

[0057] The distance r between the nozzle end face of the center nozzle 4 and the nozzle end face of the inner ring nozzle 3 is 2 mm;

[0058] The distance s between the nozzle end face of the inner ring nozzle 3 and the nozzle end...

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PUM

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Abstract

The invention discloses a multi-channel liquid fuel partial oxidation synthesis gas burner and its application. The burner includes: an outer ring nozzle, a middle ring nozzle and an inner ring nozzle arranged coaxially in sequence; The center duct, the middle duct and the outer duct connecting the middle ring nozzle and the inner ring nozzle are characterized in that they also include a center nozzle arranged in the inner ring nozzle; said center nozzle is a truncated conical pipe with a top There is a cover, and a small hole is arranged on the cover, and an inner ring channel is formed between the center nozzle and the inner ring nozzle. The burner of the present invention has a multi-channel structure, which greatly strengthens the aerodynamic force inside and outside the liquid film, and the atomization performance of the burner is obviously improved. It has the advantages of simple structure, convenient manufacture and maintenance, excellent atomization performance, uniform mixing, long service life of the burner cooling system, etc., and is widely used.

Description

technical field [0001] The invention relates to a burner for producing synthesis gas, in particular to a method for preparing synthesis gas (CO+H) by partial oxidation of liquid fuel. 2 ) of the burner. Background technique [0002] Liquid fuel (including liquid hydrocarbon fuel, or pumpable slurry of solid carbonaceous material, solid carbonaceous material selected from pulverized coal, petroleum coke, biomass or solid waste) partial oxidation to produce an entrained flow bed of synthesis gas The gasification method is to chemically react liquid fuel and gasification agent under high temperature and high pressure in an entrained bed to produce synthesis gas mainly composed of carbon monoxide and hydrogen. This gasification method has high temperature and pressure, high equipment production intensity, high carbon conversion rate, and strong adaptability to fuels. The synthetic gas produced can be used for power generation, production of chemicals and fertilizers, synthetic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23D11/40
Inventor 刘海峰李伟锋周志杰于遵宏龚欣王辅臣于广锁王亦飞代正华陈雪莉梁钦锋郭晓镭王兴军曹显奎
Owner EAST CHINA UNIV OF SCI & TECH
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