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
CN103160296AActive Publication Date: 2013-06-19SHAANXI COAL & CHEM TECH INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI COAL & CHEM TECH INST
Publication Date
2013-06-19

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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.
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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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