Method for converting waste flue gases into gases similar to air

Abstract

The invention relates to a method for converting waste flue gases into gases similar to air. Specifically, flame accelerator A and flame accelerator B and water are poured into a mixer proportionally and then imported into a flue gas mixing tank from the exit of a draught fan. And the mixture of a flame accelerator solution and flue gases enters the lower layer of a device for converting waste flue gases into gases similar to air through a smoke inlet pipe. With the heat of flue gases themselves, the flame accelerator solution in the device is evaporated and gasified into a volatile gas which is then mixed with flue gases for a reaction. In the reaction, sulfur dioxide, nitrogen oxide and carbon dioxide of the flue gases are absorbed, floating dusts in the flue gases are condensed, and oxygen is generated under excitation. Then the mixture of gases enters the upper layer of the device. With most of reaction products and water removed by sedimentation, gases similar to air come into being. The method of the invention thoroughly makes changes to environmental pollution caused by massive flue gas discharge of traditional combustion modes, so that massive discharge of flue gases can be avoided.

Description

technical field [0001] The invention relates to a method for converting waste flue gas into air-like gas. Background technique [0002] At present, both at home and abroad attach great importance to the treatment of boiler flue gas, and have advanced technologies in reducing smoke and dust, recycling flue gas heat energy, desulfurization, denitrification, and CO2 capture. But often there is no way to promote it. First of all, desulfurization can be divided into two parts: pre-combustion desulfurization and post-combustion desulfurization. Desulfurization before combustion has high requirements on coal, and the high cost has become a bottleneck that many enterprises cannot get rid of; desulfurization after combustion is mainly for the absorption of sulfide, and corresponding absorption towers and other facilities need to be established. The adsorbent is not only expensive, but also digests quickly. It often requires a professional technical team to operate, and the value of...

AI Technical Summary

Problems solved by technology

Desulfurization before combustion has high requirements on coal, and the high cost has become a bottleneck that many enterprises cannot get rid of; desulfurization after combustion is mainly for the absorption of sulfide, and corresponding absorption towers and other facilities need to be established. The adsorbent is not only expensive, but also digests quickly. It often requires a professional technical team to operate, and the value of the collected products is far from enough to make up for the capital investment, which has become a constraint for technology promotion

Secondly, the denitrification industry is similar to desulfurization, but its complexity is greater than the former, and the barriers have not been lowered but increased

[0003] The CO2 capture technology once caught people's eyes. The CO2 capture and storage technology being developed by some developed countries, that is, CCS, can even capture CO2 in some thermal power plants. However, the cost of the capture agent is also huge. Because of the benefits of captured CO2, and the toxicity and instability of ammonia-based collectors have huge hidden dangers, this makes the promotion of the technology itself more difficult and the practicability is extremely low

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