Entrained flow gasification stove, and gasification method

A gasifier and entrained bed technology, which is applied in the fields of combustible gas purification, granular/powder fuel gasification, combustible gas purification/reconstruction, etc., can solve the problem of high construction and maintenance costs, poor sealing performance of the furnace body, and inconvenient maintenance. and other problems, to achieve the effect of simple structure, easy maintenance and maintenance, and saving construction costs

Active Publication Date: 2007-07-25
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In summary, although many different types of gasifiers have been successfully applied in industry, they all have problems such as inconvenient maintenance, poor sealing performance of the furnace body, and high construction and maintenance costs.

Method used

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  • Entrained flow gasification stove, and gasification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This example illustrates: the results obtained by using the entrained-flow gasifier of the present invention to carry out the gasification test.

[0049] The structure of the gasifier used in the test is shown in Figure 1, and its processing capacity is 48t / d. The main properties of the gasification raw materials used in the test are as follows:

[0050] Industrial Analysis: Weight %

[0051] Moisture Mar

Ash Aar

Volatile content Var

Total sulfur St.ar

0

16.18

43.15

2.85

[0052] Fusion characteristics of ash: ℃

[0053] Deformation temperature DT

Softening temperature ST

Flow temperature FT

1080

1150

1200

[0054] Main physical characteristics:

[0055] Flash point

℃

Softening Point

℃

Viscosity at 250°C

mpa.s

Viscosity at 300°C

mpa.s

290

140

1600

220

[0056] Th...

Embodiment 2

[0072] This example illustrates: the results obtained by using the entrained-flow gasifier of the present invention to carry out the gasification test.

[0073] The structure of the gasifier used in the test is shown in Figure 1, and its processing capacity is 48t / d. The gasification raw material used in the test is a kind of bituminous dry coal powder, its main properties are as follows:

[0074] Industrial Analysis: Weight %

[0075] Moisture Mad

Ash Aad

Volatile matter Vad

Total sulfur St.ad

5.6

5.36

34.73

0.4

[0076] Fusion characteristics of ash: ℃

[0077] Deformation temperature DT

Softening temperature ST

Flow temperature FT

1070

1150

1220

[0078] Other features:

[0079] high calorific value

Mj / kg

Grindability index

HGI

Reactivity at 1100°C

(α value)%

Coal particle size

%(<0.076mm)

28.2

65 ...

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Abstract

This invention discloses an entrained bed gasifier, which comprises: a shell, a jacket, a quenching ring, a water-sealing tank, a draft tube, a baffling tube, an inlet for raw materials and gasifying agent, a crude coal gas outlet, and a residue outlet. The jacket, the quenching ring, the water-sealing tank, the draft tube and the baffling tube are set inside the shell from top to bottom. The inlet for raw materials and gasifying agent is set at the top of the shell, and is connected with the jacket. The crude coal gas outlet is set below the water-sealing tank. The residue outlet is set at the bottom of the shell. A positioning support is set at the upside of the shell inner wall, and a residue outlet support is set at the bottom of the shell inner wall. This invention also provides a method for gasifying by using the entrained bed gasifier. The entrained bed gasifier has such advantages as simple structure, and convenient maintenance.

Description

technical field [0001] The invention relates to a gasification device and a gasification method for producing crude coal gas mainly composed of carbon monoxide and hydrogen from carbon-containing fuels, more specifically, an entrained-flow gasifier and a gasifier using the gasifier. method. Background technique [0002] As the foundation and core of clean coal technology, coal gasification technology has a history of more than 200 years. The development of modern coal gasification technology has benefited from the oil crisis. The first worldwide oil crisis in the 1970s made people realize that oil and natural gas are not unlimited resources compared with coal. In view of the prediction of the prospect of natural gas supply, the development of coal gasification as an alternative energy source has been brought back to the agenda, and the pace of development and industrialization of new coal gasification technology has been accelerated. [0003] Entrained bed gasification is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/56
CPCC10K1/101C10J3/485C10J3/845Y02E20/18C10J3/526
Inventor 任相坤高聚忠李红凯赵金立岳国
Owner CHNA ENERGY INVESTMENT CORP LTD
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