Comprehensive utilization method of industrial furnace gas

An industrial furnace and pretreatment technology, applied in the field of metallurgy, can solve problems such as increasing carbon consumption, energy consumption for heating, and increasing energy consumption for operation, so as to achieve the effect of reducing carbon usage, reducing energy consumption, and reducing process energy consumption
CN101799244AInactive Publication Date: 2010-08-11杨绍泉
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
杨绍泉
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a comprehensive utilization method of industrial furnace gas, which belongs to the field of metallurgy, in particularly to utilization of industrial furnace gas which mainly comprises CO2. The invention achieves the purposes of providing the comprehensive utilization method of the industrial furnace gas and enhancing utilization value of components and heat in the furnace gas. The method comprises the steps of: A, preheating and removing impurities of the industrial furnace gas; B, decomposing CO2 in the industrial furnace gas treated in step A into CO by using a catalyst at the temperature of not more than 1450 DEG C; and C, usually only using waste heat resources in the reutilization of the industrial furnace gas of CO obtained in step B. In the method, CO2 is effectively used without waste; a catalytic technology is adopted for converting CO2 into CO; the waste heat of the furnace gas is thoroughly used for providing a heat source for a catalytic reaction; when CO2 is catalyzed and converted into CO gas, heat loss is less; therefore, the waste heat resources and CO can be used for largely reducing the utilization of the heat source and a carbon source for realizing the comprehensive utilization of the furnace gas.
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Description

technical field

[0001] The invention belongs to the field of metallurgy and relates to a method for comprehensive utilization of industrial furnace gas, in particular to a method mainly containing CO 2 The utilization of industrial furnace gas. Background technique

[0002] For mainly containing CO 2 The current treatment method of industrial furnace gas is generally to remove the dust impurities or SO 2 、H 2 After removing environmentally unfriendly impurities such as S, they are directly discharged into the atmosphere; or the remaining heat is utilized.

[0003] Such as: metal oxide reduction process, that is, the process in which metal oxides (such as copper, iron, chromium, titanium and other oxides) react with reducing agents to obtain metals. When carbonaceous reducing agents are used in the reduction process, the high temperature generated after reduction The main components of furnace gas are CO, CO 2 and solid impurities. The treatment method for this kind of ...

Claims

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