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公开(公告)号：US12005393B2
公开(公告)日：2024-06-11
申请号：US17239662
申请日：2021-04-25
发明人： Shiqing Wang , Qixiang Fan , Shisen Xu , Shiwang Gao , Shaomin Wang , He Zhao , Minhua Jiang , Ping Xiao , Bin Huang , Hongwei Niu , Jinyi Wang , Lianbo Liu
CPC分类号： B01D53/56 , B01D53/0462 , B01D53/265 , B01D2253/102 , B01D2257/404 , B01D2257/80 , B01D2258/0283 , B01D2259/40003
摘要： Disclosed is a flue gas low-temperature adsorption denitration system and process. The system includes a booster fan, a cold energy recoverer, a flue gas cooling system, a flue gas switching valve, and two denitration adsorption towers. An inlet of the booster fan is in communication with an inlet flue gas pipeline. The booster fan, the cold energy recoverer, the flue gas cooling system, the flue gas switching valve, and the denitration adsorption towers are sequentially communicated. An outlet of the flue gas switching valve is in communication with each of the two second denitration adsorption towers. Flue gas outlets of the two denitration adsorption towers are in communication with a flue gas manifold. The flue gas manifold is communicated with the cold quantity recoverer. Two denitration adsorption towers take turns to carry out denitration and regeneration processes, so that continuous denitration operations of the system can be achieved.
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公开(公告)号：US11925898B2
公开(公告)日：2024-03-12
申请号：US17222994
申请日：2021-04-05
发明人： Shiqing Wang , Qixiang Fan , Shisen Xu , Shiwang Gao , Shaomin Wang , He Zhao , Minhua Jiang , Ping Xiao , Bin Huang , Hongwei Niu , Jinyi Wang , Lianbo Liu
CPC分类号： B01D53/56 , B01D53/04 , B01D53/265 , B01D2253/102 , B01D2257/404 , B01D2257/80 , B01D2258/0283
摘要： The present invention discloses a flue gas low-temperature adsorption denitrification method, including: pressurizing a flue gas that has been subjected to dust removal and desulfurization, precooling the pressurized flue gas, cooling the precooled flue gas to a temperature lower than room temperature by a flue gas cooling system, flowing the flue gas at the temperature lower than room temperature into a low-temperature denitrification system, performing physical adsorption denitrification in the low-temperature denitrification system, precooling the flue gas that has been subjected to dust removal and desulfurization with the denitrificated flue gas, and flowing the heat-absorbed clean flue gas into a chimney to be discharged.
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公开(公告)号：US11577199B2
公开(公告)日：2023-02-14
申请号：US17501770
申请日：2021-10-14
发明人： Shiqing Wang , Shisen Xu , Shiwang Gao , He Zhao , Minhua Jiang , Ping Xiao , Bin Huang , Hongwei Niu , Jinyi Wang , Lianbo Liu , Dongfang Guo
摘要： Provided is a method for desulphurizating and denitrating a flue gas in an integrated manner based on low-temperature adsorption. The method includes: decreasing a temperature of the flue gas below a room temperature by using a flue gas cooling system; removing moisture in the flue gas by using a dehumidification system; sending the flue gas to a SO2 and NOx adsorbing column system; and simultaneously adsorbing SO2 and NOx of the flue gas with a material of activated coke, activated carbon, a molecular sieve or diatom mud in the SO2 and NOx adsorbing column system to implement an integration of desulphurization and denitration of the flue gas based on the low-temperature adsorption. With the present method, SO2 and NOx of the flue gas can be adsorbed simultaneously in an environment having a temperature below the room temperature.
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