A desulfurization and denitrification method and device
A desulfurization, denitrification and inducer technology, applied in the field of desulfurization and denitrification integration, can solve the problems of high cost of desulfurization and denitrification integration, harsh technological conditions, and high investment and operation costs, and achieves excellent operating performance and avoids expensive and land occupation. small area effect
Active Publication Date: 2016-07-06
陕西蔚蓝节能环境科技集团有限责任公司
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[0003] In view of the technical defects that the existing combined desulfurization and denitrification technology occupies a large area, high investment and operation costs; at the same time, the integrated technology of desulfurization and denitrification is expensive and the technical conditions are harsh, the technical solution is as follows:
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[0031] The specific implementation process of the present invention is as follows: before the original hot flue gas from the boiler 1 enters the absorption liquid through the channel, oxygen or air with a large amount of inducer is introduced into the original flue gas through the inducer injection device 2, and the mixed gas In the process of passing through the ultraviolet grating 3, under the irradiation of ultraviolet light, the inducer rapidly decomposes to generate a large number of active inducing groups, which induces the dissociation of oxygen or air to generate active oxygen atoms, and the SO in the original flue gas 2 and NO X Under the action of highly active oxygen atoms, a redox reaction occurs to convert into high-valence oxides, and the high-valence oxides are completely absorbed and removed by the absorption liquid. After the purified flue gas is dehumidified by the demisting equipment 6, it is discharged through the chimney. After the absorption liquid passes...
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The invention discloses a novel efficient desulfurization and denitration method. The novel efficient desulfurization and denitration method is characterized in that an induction agent is added into flue gas and is decomposed under the action of light and heat to generate an activated induction group; the activated induction group induces oxygen or air to be decomposed to generate activated oxygen atoms under the action of the light; SO2 and NOx in the flue gas are subjected to oxidation reduction reaction under the action of high-activity oxygen atoms and are converted into high-valence-state oxides; the high-valence-state oxides are completely absorbed by an absorption solution, are converted into water-soluble substances and then are removed to finally obtain pure flue gas. The technology has the technical advantages of small occupation area, high efficiency, excellent operation performance and the like of an ozone oxidation desulfurization and denitration technology, the technical limits that the ozone oxidation desulfurization and denitration technology is high in ozone preparation cost and the process conditions are severe and thus popularization and application of the technology in the market are eliminated, the method is environmentally friendly and efficient, the subsequent absorption treatment operation is simple, and the problem of ammonia escape of a wet ammonia process desulfurization and denitration technology is avoided.
Description
technical field [0001] The invention belongs to the technical field of new coal chemical industry, and in particular relates to an integrated technical method of desulfurization and denitrification. Background technique [0002] As the main energy source of coal, SO emissions from its combustion process 2 , NO X The total amount of such pollutants is very large, which will cause serious air pollution and endanger human health. In recent years, with the improvement of national standards for flue gas emission pollutants, many coal-fired boilers require simultaneous control of SO 2 and NO X emissions. If two sets of devices are used to desulfurize and denitrify separately, it not only occupies a large area, but also has high investment and operating costs. Therefore, it has become an integrated desulfurization and denitrification technology to search for an integrated desulfurization and denitrification technology with a simple and compact process structure, low investment ...
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IPC IPC(8): B01D53/90B01D53/60F23J15/02
CPCY02A50/20
Inventor 刘红红王伟张小龙
Owner 陕西蔚蓝节能环境科技集团有限责任公司