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Catalyst system and method for simultaneous desulfurization and denitrification by ammonia process

A technology of desulfurization, denitrification, and catalyst, which is applied in the direction of chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve the problems of exhaust gas treatment that is difficult to meet emission standards, slow absorption speed, secondary pollution, etc., and achieve catalyst consumption. Effects of recycling, mild absorption conditions, and low consumption

Inactive Publication Date: 2017-07-14
MAISEN ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simultaneous desulfurization and denitrification by ammonia method is a kind of SO 2 and NO X Recycling method, but the traditional ammonia spraying has a slow absorption rate and excessive alkalinity of the absorption system, resulting in ammonia escape and secondary pollution, and it is difficult to treat the exhaust gas to meet the emission standards

Method used

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  • Catalyst system and method for simultaneous desulfurization and denitrification by ammonia process
  • Catalyst system and method for simultaneous desulfurization and denitrification by ammonia process
  • Catalyst system and method for simultaneous desulfurization and denitrification by ammonia process

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Embodiment 1

[0032] This embodiment relates to a group of catalyst systems of metal phthalocyanine compounds and water-insoluble organosilicon, and the components of each catalyst system are shown in the following table:

[0033]

[0034] Mix the metal phthalocyanine compound and water-insoluble organic silicon according to the ratio mentioned in the above table, and the metal phthalocyanine compound is suspended and dispersed in the water-insoluble organic silicon, which is used as a catalyst system for simultaneous desulfurization and denitrification in the ammonia method.

Embodiment 2

[0036] This embodiment relates to a method for simultaneous desulfurization and denitration by ammonia method.

[0037] The ammonia method of the present embodiment simultaneously desulfurizes and denitrates the method, adopts the equipment such as figure 1As shown, the lower part of the desulfurization and denitrification tower 2 is the reaction chamber 6, the bottom of the reaction chamber 6 is provided with an ammonia water supply pipe 7 and an oxygen supply pipe 8, and the ammonia water supply pipe 7 is connected with the ammonia water storage tank 1 for feeding the reaction chamber Ammonia water is supplied in 6; oxygen supply pipe 8 is used to supply oxygen F1 into the reaction chamber 6; a flue gas input pipe 9 is provided in the middle of the desulfurization and denitrification tower 2, and is used to feed flue gas F2 into the reaction chamber 6 The upper part of the reaction chamber 6 is provided with an output pipe 10, which is connected with the circulation pump 3, ...

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Abstract

The invention relates to a catalyst system and a method used in ammonia-process simultaneous desulfurization and denitrification. The catalyst system includes a metal phthalocyanine compound and non-water-soluble organic silicon and can complete capture and catalytic oxidization of both SO2 and NOx simultaneously. The catalyst system can increase absorption rate and can effectively reduce ammonia escape. The method can generate ammonium sulfate and ammonium nitrate, thereby recycling the SO2 and the NOx to obtain resources. The ammonia-process simultaneous desulfurization and denitrification method is high in absorption efficiency on SO2 and NOx, is simple in process, is mild in absorption condition, is less in corrosion on equipment, is low in energy consumption and operation cost, and is green and environment-friendly.

Description

technical field [0001] The invention relates to a catalyst for a desulfurization and denitrification method, in particular to a catalyst system for simultaneous ammonia desulfurization and denitrification, and meanwhile, the invention also relates to a method for simultaneous ammonia desulfurization and denitrification using the catalyst system. Background technique [0002] my country is a big coal-burning country, and the SO emitted after coal-burning 2 , NO X It is one of the main pollutants in the atmosphere, which can form acid rain and other secondary pollutants, causing huge economic losses and seriously affecting people's lives. Depending on the type of coal burned, SO 2 The content is usually 1000~15000mg / Nm 3 Between, nitrogen oxides NO X The content is usually 300~3000mg / Nm 3 between. In July 2011, the Ministry of Environmental Protection officially approved the implementation of the "Emission Standards of Air Pollutants for Thermal Power Plants" (GB 13223-2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22B01D53/60B01D53/90
CPCY02A50/20
Inventor 张清洁王建英田月张丽喆刘玉敏陈国刚胡永琪陶然卢赤杰
Owner MAISEN ENERGY TECH CO LTD
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