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Biomass and coal co-pyrolysis and gasification co-generation system, pyrolysis reactor and application thereof

A technology of pyrolysis reactor and gasification reactor, which is applied in gasification process, granular/powder fuel gasification, manufacture of combustible gas, etc. Large-scale operation and other problems, to achieve uniform reaction, avoid uneven heating, reduce equipment and costs

Inactive Publication Date: 2019-09-17
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the inventor believes that: some existing coal pyrolysis technologies have the disadvantages of low tar yield and high heavy pitch components in tar, while hydropyrolysis and catalytic pyrolysis can improve the quality of pyrolysis products, However, expensive hydrogen raw materials and complex catalyst preparation processes have become the key factors restricting the reduction of production costs; while biomass production is seasonal, it is difficult to achieve stable supply, so it is also difficult to operate on a large scale

Method used

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  • Biomass and coal co-pyrolysis and gasification co-generation system, pyrolysis reactor and application thereof
  • Biomass and coal co-pyrolysis and gasification co-generation system, pyrolysis reactor and application thereof

Examples

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Embodiment 1

[0045] A biomass and coal co-pyrolysis and gasification co-production system, refer to figure 1 , which includes: pulverizer 1, coal mill 2, mixer 3, dryer 4, pyrolysis reactor 5, high temperature dust collector 6, cooler 7, tar dehydration device 8, gasification reactor 9 and boiler 10, Wherein: the pulverizer 1 and the coal mill 2 are connected to the mixer 3; the mixer 3, the dryer 4, the pyrolysis reactor 5, the high temperature dust collector 6, the cooler 7, and the boiler 10 are connected in sequence; The discharge port of the pyrolysis reactor 5, the discharge port of the warm deduster 6 are all communicated with the feed port of the gasification reactor 9, the cooler 7, the tar dehydration device 8, the gasification reactor 9 are connected in sequence, and the tar dehydration device 8 is connected with the feed port of the gasification reactor 9, and the flue gas outlet in the boiler 10 is connected with the gasification reactor 9, the pyrolysis reactor 5, and the dry...

Embodiment 2

[0047] A pyrolysis reactor for co-pyrolysis of biomass and coal, reference figure 2 , the pyrolysis reactor includes: reaction chamber 5.1, feed inlet 5.2, exhaust port 5.3, semi-coke outlet 5.4, stirring propeller 5.5, driving device 5.6, external heating gas chamber 5.7, flue gas inlet 5.8, flue gas Outlet 5.9, inlet channel 5.10 and outlet channel 5.11; wherein: the feed inlet 5.2 is set at one end of the reaction chamber 5.1; the exhaust port 5.3 and semi-coke outlet 5.4 are all set at the other end of the reaction chamber 5.1, and The exhaust port 5.3 is set upward, and the semi-coke outlet 5.4 is set downward; the stirring propeller 5.5 is located in the reaction chamber 5.1, and is used for stirring and propulsing the biomass and coal; the driving device 5.6 and the stirring propeller 5.5 Connected to provide power for the stirring propeller 5.5; the external heating chamber 5.7 is wrapped on the outer surface of the reaction chamber 5.1, and the gap between the two fo...

Embodiment 3

[0049] A biomass and coal co-pyrolysis and gasification co-production system, the same as in Example 1, the difference is that the pyrolysis reactor 5 is the pyrolysis system used for co-pyrolysis of biomass and coal as described in Example 2 reactor.

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Abstract

The invention belongs to the technical field of biomass and coal co-pyrolysis, and particularly relates to a biomass and coal co-pyrolysis and gasification co-generation system, a pyrolysis reactor and application thereof. The biomass and coal co-pyrolysis and gasification co-generation system comprises a pulverizer, a coal mill, a mixer, a dryer, a pyrolysis reactor, a high-temperature dust remover, a cooler, a tar dehydration device, a gasification reactor and a boiler. The pulverizer and the coal mill are all communicated with the mixer. The mixer, the dryer, the pyrolysis reactor, the high-temperature dust remover, the cooler and the boiler are communicated in sequence. The discharge port of the pyrolysis reactor and the discharge port of the high-temperature dust collector are all communicated with the feed port of the gasification reactor, the cooler, the tar dehydration device and the gasification reactor are sequentially communicated, the tar dehydration device is communicated with the feed port of the gasification reactor, and the flue gas outlet in the boiler is sequentially communicated with the gasification reactor, the pyrolysis reactor and the dryer through a pipeline. The system can realize reasonable energy supply preparation, realizes internal energy supply of the system as much as possible, and reduces dependence on external energy.

Description

technical field [0001] The invention belongs to the technical field of co-pyrolysis of biomass and coal, and specifically relates to a co-pyrolysis and gasification cogeneration system of biomass and coal, a pyrolysis reactor and applications thereof. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] With the continuous development of high-quality coal resources, low-rank coal has shown advantages due to its abundant reserves and easy development, and because direct combustion of low-rank coal has a series of problems such as large dust and low calorific value, so pyrolysis is used It can be upgraded in a way to realize its clean utilization. Biomass can fix ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/04C10B53/00C10J3/46C10J3/72
CPCC10B53/00C10B53/04C10J3/46C10J3/72C10J2300/0916C10J2300/093C10J2300/0953C10J2300/1207
Inventor 任霄汉孙锐吕双李玉昆张淑慧肖龙李凌峰
Owner SHANDONG UNIV