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System and method for quickly treating pulverized coal by pyrolysis

A fast, pulverized coal technology, applied in the field of pulverized coal pyrolysis, can solve problems that have not been used in large-scale industrialization, and achieve the effects of high economic value, simple system structure, and short process flow

Pending Publication Date: 2017-03-22
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complexity of the physical and chemical properties of low-rank coal, except for the relatively mature technology of drying and upgrading, the technological routes of pyrolysis polygeneration and gasification have not been used on a large scale so far.

Method used

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  • System and method for quickly treating pulverized coal by pyrolysis
  • System and method for quickly treating pulverized coal by pyrolysis
  • System and method for quickly treating pulverized coal by pyrolysis

Examples

Experimental program
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Embodiment

[0067] use figure 1 The system shown processes Ito lignite. In reactor 2, the opening angle of the baffle assembly composed of two baffles with the opening downward is 70°, the angle formed between the baffle plate and the inner wall of the reactor body is 40°, and the top angle of the top cover is 70° , the width of the vertical section of the top cover is 330mm, the length of the baffle is 450mm, the radiant tubes are circular tubes with a nominal diameter of 300mm, the horizontal distance between the left and right adjacent radiant tubes is 400mm, and the vertically adjacent The vertical distance between the two radiant tubes is 1200mm. The height of the reactor body is 20m, the width of the inner wall is 6m, the length of the inner wall is 15m, and there are 25 layers of radiant tubes.

[0068] The component analysis of the Ito lignite is shown in Table 1, and its particle size is ≤1mm. The pyrolysis process is as figure 2 As shown, the details are as follows:

[006...

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Abstract

The invention discloses a system and a method for quickly treating pulverized coal by pyrolysis. The system comprises a quick pyrolysis reactor, a dust removing device, a condenser, a purifying device, a PSA (Pressure Swing Adsorption) hydrogen production device and a pyrolytic tar hydrogenation device, wherein the dust removing device is connected with the quick pyrolysis reactor and the condenser; the purifying device is connected with the condenser and the PSA hydrogen production device; the PSA hydrogen production device is also connected with the pyrolytic tar hydrogenation device. The system is simple in structure and short in process; the continuous running and industrial popularization are easily achieved; in addition, semicoke, pyrolytic tar and pyrolytic gas obtained in pyrolysis can be converted for reutilizing, so that the whole process is free of intermediate products, and as a result, the economic value is high.

Description

technical field [0001] The invention relates to coal powder pyrolysis, in particular to a system and method for rapid pyrolysis treatment of coal powder. Background technique [0002] my country's energy characteristics are "short of oil and gas, and relatively rich in coal resources". With the development of the national economy, the demand for energy is increasing day by day. According to the existing technical analysis, the guarantee of my country's energy self-sufficiency can only come from the large-scale use of coal resources, so the energy strategy based on coal is an inevitable choice . In coal utilization, middle and low-rank coal has the characteristics of high volatile content, which can extract high-yield coal tar, and obtain gasoline, diesel and chemical products through hydrogenation of coal tar, which can effectively alleviate the plight of oil shortage in my country. [0003] Low-rank coal refers to coal in the low metamorphic stage, which has the characteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/04C10B47/18C10B57/10C10G1/00C10G49/00C10L5/10C10L5/36C01B3/50
CPCC10B53/04C01B3/508C10B47/18C10B57/10C10G1/002C10G49/00C10L5/10C10L5/36
Inventor 张宏伟陈水渺梅磊赵延兵吴道洪
Owner SHENWU TECH GRP CO LTD
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