Regeneration method of aluminum chloride for denitration

A technology of aluminum chloride and denitrification, applied in chemical instruments and methods, separation methods, and separation of dispersed particles, can solve problems such as high operating costs, low absorption efficiency, and low solubility, and achieve low operating costs, large processing capacity, Simple operation effect
CN105582802AInactive Publication Date: 2016-05-18黄立维
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
黄立维
Publication Date
2016-05-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a regeneration method of aluminum chloride for denitration and belongs to the technical field of air pollution control and environmental protection. The treatment process of the method is as follows: aluminum chloride solid particles and nitric oxides in airflow have a chemical reaction in a gas-solid reaction tower to produce a solid product to be introduced into an aluminum chloride regeneration furnace, heating is performed in the shielding atmosphere of inert gases such as nitrogen and the like or after vacuum pumping, absorbed nitric oxides are released, hydrogen chloride gas is further introduced into the aluminum chloride regeneration furnace, basic aluminum chloride and aluminum hydroxide in the solid product are converted into aluminum chloride, so that the aluminum chloride is regenerated, nitric acid can be recovered, and the aluminum chloride regeneration furnace can also be used as a gasification furnace for preparing aluminum chloride solid particles for denitration. The regeneration method has the characteristics of low investment cost and running cost, simplicity in operation, high treatment efficiency and high treatment capacity.
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Description

technical field

[0001] The invention relates to a method for regenerating aluminum chloride for denitrification, and belongs to the technical field of air pollution control and related environmental protection. Background technique

[0002] Nitrogen oxides (NOx) produced by human activities x ) mainly includes NO and NO 2 , of which more than 90% are produced by fuel combustion, followed by industrial processes such as nitric acid production, chemical and pharmaceutical nitration reactions, metal surface and semiconductor processing. NO X It is toxic to humans, and a large amount of nitrogen oxide emissions is also one of the main causes of atmospheric photochemical smog and acid rain. Statistical data in the Bulletin on the State of the Environment in China shows that the contribution of nitrogen oxides in acid rain in my country's cities is increasing, and the nature of acid rain pollution in some places has begun to change from sulfuric acid to nitrate ions (Ministry o...

Claims

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