System and method for amplifying coke oven gas

Abstract

The invention provides a system and method for amplifying coke oven gas. in which coal powder is taken as a carbon catalyst to increase the carbon content of reactions so as to improve a coke oven gas conversion rate of carbon dioxide and thus amplify energy coke gas of an iron works. The system for amplifying coke oven gas includes: a carbon dioxide supplying device, which supplies carbon dioxide produced by an FINEX plant to a carbonization chamber; a coal powder supplying device, which processed coal powder to the carbonization chamber that obtains carbon dioxide supplies; a coal powder / carbon dioxide reaction device, which enables reactions between the coal powder and carbon dioxide in the carbonization chamber; and a coke oven gas amplifying device, which enables reactions between the coal powder and carbon in the carbonization chamber to conduct coke oven gasification on carbon.

Description

technical field [0001] The invention relates to a system and method for adding carbon dioxide and pulverized coal into a carbonization chamber of a coke oven to amplify coke oven gas. Background technique [0002] Usually, the coal material is loaded into the high-temperature carbonization chamber of the coke oven, and the heat generated by the fuel gas is used to dry the coal material, and the by-product coke oven gas is produced at this time. [0003] Most of the coke oven gas produced in this way is purified and used as fuel in ironworks. However, as the usage of coke oven gas increases, it is currently being considered to increase coke oven gas. In particular, large-scale production of hydrogen has become an important issue due to the carbon dioxide problem, and under such circumstances, coke oven gas has attracted attention as a potential raw material for large-scale production of hydrogen. [0004] However, due to the presence of tar, hydrogen sulfide (H 2 S) and oth...

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Problems solved by technology

[0004] However, due to the presence of tar, hydrogen sulfide (H 2 S) and other substances, it is actually difficult to recover the sensible heat of high-temperature coke oven gas as an energy source through a heat exchange device

In order to solve this problem, Japan has recently begun to study the decomposition of the tar contained in the unpurified high-temperature coke oven gas with a catalyst or add oxygen to partially oxidize the tar at high temperature to amplify the combustible gas components, but there are catalyst regeneration and high Technical and economical problems caused by oxygen consumption

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