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1.发明公开公开(公告)号：US20230405519A1
公开(公告)日：2023-12-21
申请号：US18196496
申请日：2023-05-12
发明人： Jing Luo , Jun Zhang , Lifang Qi , Jinyong Wang
CPC分类号： B01D53/58 , B01D53/78 , B01D53/502 , B01D53/62 , B01D53/75 , B01D53/1406 , B01D53/1425 , B01D53/1475 , B01D53/1481 , B01D53/1493 , B01D53/185 , B01D2257/504 , B01D2257/302 , B01D2257/406 , B01D2251/206
摘要： Apparatus and methods for controlling ammonia escape in an ammonia-based decarbonization system, wherein ammonia may be used as the desulfurization and decarbonization agent, the gas may first enter the desulfurization device for desulfurization to produce ammonium sulfate fertilizer, and the desulfurized gas may enter the decarbonization device to remove carbon dioxide in the gas, and may produce ammonium bicarbonate fertilizer. The decarbonized gas may include free ammonia, and the free ammonia in the gas may be absorbed with the acidic ammonium sulfate solution and acidic water washing liquid of ammonia-based desulfurization.
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公开(公告)号：US20220362706A1
公开(公告)日：2022-11-17
申请号：US17709945
申请日：2022-03-31
摘要： Apparatus and methods for desulfurization and decarbonization of a process gas containing sulfur oxides and CO2. Ammonia may be used as a desulfurizing and decarbonizing agent. The gas may enter a desulfurization apparatus for desulfurization, and to produce an ammonium sulfate fertilizer. The desulfurized gas may enter a decarbonization apparatus to remove carbon dioxide in the gas, and to produce an ammonium bicarbonate fertilizer. The decarbonized gas may contain free ammonia. The decarbonized gas may be washed with a desulfurization circulating fluid and then with water. The washing fluid may be returned to the desulfurization apparatus for use as an absorbing agent for desulfurization. Acidic desulfurization circulating fluid may be used to wash ammonia, thereby achieving a high ammonia washing efficiency, and a low ammonia slip during the decarbonization process.
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公开(公告)号：US20210197117A1
公开(公告)日：2021-07-01
申请号：US16935536
申请日：2020-07-22
发明人： Jing Luo , Yongying Luo , Jinyong Wang
摘要： Controlling aerosol production during absorption in ammonia-based desulfurization. The absorption reaction temperature, the oxygen content and water content of the process gas may be controlled, and an absorption circulating liquid containing ammonium sulfite may be used for removing sulfur dioxide in flue gas, so as to control aerosol production during absorption in the ammonia-based desulfurization
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公开(公告)号：US10583386B2
公开(公告)日：2020-03-10
申请号：US16158481
申请日：2018-10-12
发明人： Jing Luo , Jinyong Wang , Jun Zhang
摘要： Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO2 concentration provided by the inlet CEMS, and a predetermined SO2 concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO2 concentration and a change trend provided by the outlet CEMS.
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公开(公告)号：US10561982B2
公开(公告)日：2020-02-18
申请号：US16522899
申请日：2019-07-26
发明人： Jing Luo , Changxiang Xu , Xiangjun Xu , Yongying Luo
摘要： Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
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公开(公告)号：US10427097B2
公开(公告)日：2019-10-01
申请号：US16176255
申请日：2018-10-31
发明人： Jing Luo , Congzhi Zhang , Yongying Luo
摘要： A desulfurization absorption tower, a method for setting up the same and a method for operating the same. The tower may include an internal anti-corrosion layer that may be used for contacting the flue gas and the desulfurization absorption liquid, may define the tower chamber, and may include stainless steel plate whose thickness is 1.0 mm to 6.0 mm. The tower body may include an external supporting layer that may be used for supporting the anti-corrosion layer and may include carbon steel. The supporting layer and the anti-corrosion layer may be designed to jointly bear a load, wherein the supporting layer may be designed to bear a large part of the load, and the anti-corrosion layer may be designed to bear a small part of the load.
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公开(公告)号：US10406478B2
公开(公告)日：2019-09-10
申请号：US16018386
申请日：2018-06-26
发明人： Jing Luo , Changxiang Xu , Xiangjun Xu , Yongying Luo
摘要： Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
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公开(公告)号：US10099170B1
公开(公告)日：2018-10-16
申请号：US15661186
申请日：2017-07-27
发明人： Jing Luo , Jinyong Wang
IPC分类号： B01D53/14
CPC分类号： B01D53/1412 , B01D53/1481 , B01D53/1493 , B01D53/346 , B01D53/50 , B01D2252/102 , B01D2252/103 , Y02A50/2346
摘要： Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO2 concentration provided by the inlet CEMS, and a predetermined SO2 concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO2 concentration and a change trend provided by the outlet CEMS.
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公开(公告)号：US20230405521A1
公开(公告)日：2023-12-21
申请号：US18196489
申请日：2023-05-12
发明人： Jun Zhang , Lifang Qi , Jinyong Wang , Jing Luo
CPC分类号： B01D53/78 , B01D53/62 , B01D53/1475 , B01D53/1493 , B01D53/1406 , B01D53/18 , B01D2257/504 , B01D2251/2062 , B01D2258/0283
摘要： Staged absorption ammonia-based decarbonization using an absorption circulating liquid containing ammonium salts to remove carbon dioxide in a gas, and control ammonia escape while realizing efficient decarbonization through staged solution composition control and reaction condition control. Staged solution composition control may include concentration gradient control of ammonium carbonate, ammonium bicarbonate, ammonium carbamate, ammonia, or combinations thereof, which may be characterized by the molar ratio of total ammonia to total CO2. Reaction condition control may include temperature control, pH control, and pressure control. The flue gas may enter the decarbonization tower, and through staged absorption, establishment of concentration, temperature, and multi-point addition of ammonia, decarbonization efficiency may be improved, decarbonization operating costs may be saved, and ammonia escape may be controlled.
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公开(公告)号：US10543451B2
公开(公告)日：2020-01-28
申请号：US16158481
申请日：2018-10-12
发明人： Jing Luo , Jinyong Wang , Jun Zhang
摘要： Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO2 concentration provided by the inlet CEMS, and a predetermined SO2 concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO2 concentration and a change trend provided by the outlet CEMS.
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