-
公开(公告)号：US10112145B1
公开(公告)日：2018-10-30
申请号：US15923031
申请日：2018-03-16
发明人： Jing Luo , Lifang Qi , Jinyong Wang
摘要： Apparatus and methods for controlling aerosol production during absorption in ammonia desulfurization, by removing sulfur dioxide in flue gas with an absorption circulation liquid containing ammonium sulfite, so as to control the aerosol production during absorption in ammonia desulfurization. Efficient desulfurization and dust removal may be achieved by staged solution composition control and reaction condition control. At the same time ammonia escape and aerosol production during absorption may be controlled. The flue gas may be subjected to preliminary temperature lowering and purification, and may be allowed to contact with an absorption circulation liquid and a fine particle washing circulation liquid sequentially. Levels of solution compositions and reaction temperatures may be controlled.
-
公开(公告)号：US10092877B1
公开(公告)日：2018-10-09
申请号：US15618975
申请日：2017-06-09
发明人： Jing Luo , Jun Zhang , Yongying Luo , Qiang Tan , Xiangjun Xu
IPC分类号： B01D53/50 , B01D47/06 , B01D53/78 , B01D53/96 , B01D53/75 , B01D53/86 , B01D53/34 , B01D53/56 , C10G11/18
CPC分类号： B01D53/502 , B01D47/06 , B01D53/343 , B01D53/50 , B01D53/501 , B01D53/56 , B01D53/75 , B01D53/78 , B01D53/8625 , B01D53/8628 , B01D53/96 , B01D2252/102 , B01D2257/302 , B01D2257/404 , B01D2258/0283 , C10G11/18 , C10G2300/405
摘要： Apparatus and methods for denitrification and desulfurization of and dust removal from an FCC tail gas by an ammonia-based process. The apparatus may include a first-stage waste heat recovery system, a denitrification system, a dust removal and desulfurization system, a tail gas exhaust system, and an ammonium sulfate post-processing system. The dust removal and desulfurization system may include a dedusting tower and an absorption tower disposed separately. The top and the bottom of the absorption tower may be connected respectively to the tail gas exhaust system and the ammonium sulfate post-processing system. The absorption tower may include sequentially, from bottom to top, an oxidation section, an absorption section, and a fine particulate control section. The methods may be implemented with the apparatus.
-
公开(公告)号：US10016721B1
公开(公告)日：2018-07-10
申请号：US15619122
申请日：2017-06-09
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.
-
24.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.
-
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.
-
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
-
公开(公告)号：US20200147546A1
公开(公告)日：2020-05-14
申请号：US16740917
申请日：2020-01-13
IPC分类号： B01D53/75 , B01D53/50 , C01B17/775 , C01B17/04 , C01C1/24 , B01D51/10 , B01D53/73 , B01D53/78 , B01D53/52
摘要： Apparatus and methods for treating acid gas, which utilizes multi-stage absorption cycle of ammonia desulfurization to treat acid tail gas after pre-treatment of the acid gas, thereby achieving the purpose of efficient and low-cost treatment of acid tail gas. The parameters of the acid tail gas may be adjusted by a regulatory system such that the enthalpy value of the acid tail gas is in the range of 60-850 kJ/kg dry gas, for example, 80-680 kJ/kg dry gas or 100-450 kJ/kg dry gas, to meet the requirements of ammonia desulfurization, and achieve the synergy between the acid gas pre-treatment and ammonia desulfurization. Furthermore, hydrogen sulfide may be converted into sulfur/sulfuric acid plus ammonium sulfate at an adjustable ratio.
-
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.
-
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.
-
公开(公告)号：US20200001235A1
公开(公告)日：2020-01-02
申请号：US16565768
申请日：2019-09-10
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.
-
-
-
-
-
-
-
-
-
搜索结果
70 条记录 (耗时 0.025 秒)
