Novel fixed bed slag gasification reaction furnace and gas production method thereof

Abstract

The invention belongs to the field of coal chemical industry and coke gasification, and relates to chemical engineering, chemical technology and chemical equipment technology, and particularly relates to a reaction furnace with fixed bed slag gasification, liquid slag removal and fractional gasification and a technology thereof. The reaction furnace comprises a gasifier furnace, a slag hole, a combustion chamber, a quench chamber and an automatic coke or coal adding machine. The invention provides the novel reaction furnace with the fixed bed slag gasification, liquid slag removal and fractional gasification which utilizes crushed coal (anthracite, bituminous coal and coke) as raw materials, and can operate under normal pressure to 0.09MPa pressure. The reaction furnace can improve the gasification temperature, carbon conversion rate and steam decomposition rate and cold coal efficiency, has a high content of effective gases, relatively simple operation and maintenance, and compact and reliable equipment, is less in investment, small in waste water quantity and safe and environmentally friendly, can convert into relatively clean water gas, and completely realizes localization.

Description

technical field [0001] The invention belongs to the field of coal chemical industry and coke gasification and relates to chemical engineering, chemical technology and chemical equipment technology, in particular to a reaction furnace for fixed-bed slag gasification, liquid slag removal and graded gasification and its technology. Background technique [0002] The traditional fixed-bed batch gasifier (UGI) adopts the solid-state slagging method, and is still the main furnace type for nitrogen fertilizer production in my country. It does not meet the development needs of the industry; fixed-bed pure oxygen continuous gasification also adopts the solid-state slag discharge method. Although it is a breakthrough in the development of fixed-bed technology, it also needs to further improve the pyrolysis gasification temperature and steam decomposition rate. [0003] At present, BGL gasification technology adopts the liquid slag discharge method, but there are also complex control of ...

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Problems solved by technology

[0003] At present, BGL gasification technology adopts liquid slag discharge method, but there are also complex control of slag discharge method, difficult equipment manufacturing and processing, some key equipment needs to be imported, low operation reliability and large investment. High, not conducive to the production of synthetic ammonia and other aspects of deficiencies

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