Technique for producing new energy by using firewood, grass and straws to treat CO2 in blast furnace tail gas

Abstract

The invention discloses a technique for producing new energy by using firewood, grass and straws to treat CO2 in blast furnace tail gas. The technique comprises the following steps of: scientifically treating the firewood, the grass and the straws to obtain mixed gas, filling the tail gas into treatment tanks A and B for later use after the mixed gas is treated by A and B treatment systems respectively, reclaiming all the blast furnace tail gas through a C treatment system and filling the tail gas into a treatment tank C, then conveying the gas in the treatment tanks A, B and C to an activation tank with compressing respectively, compressing the activated gas to form liquefied gas and non-liquefied gas, directly charging the liquefied gas for users, treating and reclaiming the non-liquefied gas, and discharging the pollution-free gas to the atmosphere. The whole production system does not consume the conventional energy; the pollution emission is zero; ground natural gas, liquefied gas, mixed anthracene oil, mixed naphthalene oil, light oil, steam generated power and the like are produced at the same time; the economic and social benefits are very good; and the energy conservation and emission reduction effects are very obvious.

Description

technical field [0001] The invention relates to treating CO in blast furnace tail gas with firewood, grass and straw 2 The technology of producing new energy, specifically, is a kind of combustible materials such as firewood, grass and straw, without adding any additives, using scientific methods to safely recover biogenic gas and high-temperature cracking gas for use in Treatment of CO in fully recovered blast furnace off-gas 2 Get the technology to reuse the energy produced. Background technique [0002] With the development of science and technology, the grain output is constantly increasing, and at the same time, the amount of discarded firewood, grass and straw is also increasing. How to deal with the discarded firewood, grass and straw of crops and reduce the pollution of biogenic gas to the atmosphere has become an important issue. It has become a top priority to reduce pollution emissions and protect the human environment. Although returning to the field can solve ...

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology, the grain output is constantly increasing, and at the same time, the amount of discarded firewood, grass and straw is also increasing. How to deal with the discarded firewood, grass and straw of crops and reduce the pollution of biogenic gas to the atmosphere has become an important issue. It has become a top priority to reduce pollution emissions and protect the human environment. Although returning to the field can solve the current urgent problem, the effects of combustible materials such as firewood, grass and straw have not been well applied, which is equivalent to waste. Moreover, firewood, grass and straw After returning to the field and merging with water, a large amount of biogenic gas will be produced. Biogenic gas is difficult to be decomposed by other gases. It will be decomposed only when the concentration reaches 5.4% to 14%. 2 etc. Scientifically utilizing the functions of combustible materials such as firewood, grass and straw to benefit mankind has become the top topic of energy conservation, reduction of environmental protection

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