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Pyrolysis gasification coupling integrated poly-generation system and process for coal chemical industry

A pyrolysis gasification and coupling system technology, applied in the field of coal chemical industry, can solve the problems of low energy utilization efficiency and difficulty in the utilization of pyrolysis semi-coke, and achieve high value-added market demand change adaptability and low-cost harmful substance emission control , Environmentally friendly effect

Active Publication Date: 2013-06-19
SHAANXI COAL & CHEM TECH INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide a coal chemical pyrolysis gasification coupling integrated polygeneration system and process, which solves the problems of low energy utilization efficiency and difficult utilization of pyrolysis semi-coke in the current coal utilization, and realizes oil, Reasonable allocation of gas, chemical, electricity and heat to achieve energy saving, emission reduction and high product benefits

Method used

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  • Pyrolysis gasification coupling integrated poly-generation system and process for coal chemical industry

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Embodiment 1

[0032] Such as figure 1 As shown, the present invention includes a coal preparation unit 1, a pyrolysis-gasification coupling system A and a polygeneration system B.

[0033] The pyrolysis-gasification coupling system A includes a pyrolysis unit 2 and a gasification unit 8 coupled together, wherein the pyrolysis unit is as attached figure 2 As shown, it includes a pyrolysis furnace 13, a first gas-solid separator 14, a gas-liquid separator 15, an oil-water separator 16, a tar purifier 17, an electric tar catcher 18, a first gas purifier 19, and a semi-coke splitter 20 and coke quenching passivation equipment 21; the gasification unit includes a gasification furnace 22, a second gas-solid separator 23 and a second gas purifier 27. between the parts figure 2As shown, they are connected through pipelines. Specifically, the two output ends of the pyrolysis furnace 13 are respectively connected to the input end of the first gas-solid separator 14 and the input end of the semi-c...

Embodiment 2

[0048] Such as image 3 As shown, in order to make the device simpler, easier to deploy and control, the present invention will attach figure 1 The pyrolysis furnace 13 of the pyrolysis unit 2, the gasification furnace 22 and the semi-coke splitter 20 of the gasification unit 8 are integrated in one device to realize the coupling of raw coal pyrolysis and gasification. It includes coal preparation unit 1, pyrolysis gasification coupling unit 25 and polygeneration system B.

[0049] Pyrolysis gasification coupling unit 25 as attached Figure 4 As shown, it includes a pyrolysis gasifier 26, a first gas-solid separator 14, a gas-liquid separator 15, an oil-water separator 16, a tar purifier 17, an electric tar catcher 18, a first gas purifier 19, and a coke quenching passivation equipment 21 , a second gas-solid separator 23 and a second gas purifier 27 . between the parts Figure 4Shown are connected by pipelines, and the output end of the top of the pyrolysis section of the...

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Abstract

The invention provides a pyrolysis gasification coupling integrated poly-generation system and process for the coal chemical industry. The system comprises a coal preparation unit, a pyrolysis-gasification coupling system A and a poly-generation system B, wherein the poly-generation system B comprises a purified gas separation unit connected with the purified gas outlet of the pyrolysis unit, a purified tar separation unit connected with the purified tar outlet of the pyrolysis unit, and a chemical product synthesis unit and an IGCC (Integrated Gasification Combined Cycle) unit which are respectively connected with purified gasification gas outlet of the gasification unit; and the purified tar separation unit is sequentially connected with a coal tar hydrofining unit and an oil product separation unit. The pyrolysis gasification coupling integrated poly-generation system and process can be used for organically combining coal pyrolysis gasification and the production process of oil, gas, chemicals, electricity and heat to realize integration of material conversion and energy conversion, maximize classified utilization, value promotion, utilization efficiency and economical benefit of coal resources, and improve the energy utilization efficiency.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry and relates to a polygeneration system with coal pyrolysis and gasification as the core, in particular to a coal chemical pyrolysis gasification coupled integrated polygeneration system and process. Background technique [0002] my country is a country that is "poor in oil, low in gas, and relatively rich in coal resources". However, coal utilization has always been in an unreasonable industrial layout that only develops coal production and does not pay attention to the comprehensive utilization of coal. The lack of technology, equipment and facilities in the power, chemical and other industries, as well as the irrational product structure have caused my country's units to The energy consumption of output value is 3-4 times that of developed countries. With the increase of coal consumption, more and more environmental problems are faced. In addition, my country's dependence on crud...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/00C10J3/00C10J3/84C10K1/00C10C1/00C10C3/00C10G67/00C10G2/00C01B31/20C07C273/02C07C31/04C07C31/20C07C29/151C07C51/10C07C53/08C07C68/04C07C69/96C01B32/50
CPCY02E20/18Y02E50/30Y02P20/141Y02P20/50
Inventor 尚建选闵小建郑化安冉伟利张志刚樊英杰苗青陈静升张生军马勇贾培军
Owner SHAANXI COAL & CHEM TECH INST
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