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公开(公告)号：US20240139678A1
公开(公告)日：2024-05-02
申请号：US18409752
申请日：2024-01-10
发明人： Wei Ji , Xiaodun Niu , Qiujun Shi , Youxiong He , Cong Zhao , Weiwen Gu , Ye Yuan
CPC分类号： B01D53/75 , B01D53/504 , B01D53/78 , B01D53/8625 , F23G5/46 , B01D2253/102 , B01D2257/302 , B01D2257/404 , B01D2258/0291 , F23G2206/20
摘要： A flue gas purification system for hazardous waste incineration and a purification method are provided. The flue gas purification system includes a cooling deacidification coupling device. The cooling deacidification coupling device includes a reaction tower. A top of the reaction tower is installed with a spraying device, an inlet end of the spraying device is connected to a first liquid inlet pipe and a second liquid inlet pipe, the first liquid inlet pipe and the second liquid inlet pipe are configured to transmit a cooling substance and a deacidification substance. The reaction tower is connected to a gas inlet pipe and a gas outlet pipe. A bottom of the reaction tower is connected to an output pipe configured to output substances generated in the reaction tower. The spraying device is configured to mix the cooling substance and the deacidification substance with the flue gas.
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公开(公告)号：US20190218097A1
公开(公告)日：2019-07-18
申请号：US15768510
申请日：2017-09-19
申请人： Stamicarbon B.V.
CPC分类号： C01B21/40 , B01D53/002 , B01D53/14 , B01D53/1493 , B01D53/8625 , B01D53/8631 , B01D2252/103 , B01D2257/404 , C01B21/26 , Y02C20/20
摘要： Disclosed is a dual pressure plant for the production of nitric acid on the basis of the oxidation of ammonia. The plant comprises a reactor configured to produce a burner gas stream; a gas cooling section configured to form a cooled burner gas; a condensation section configured to form an aqueous nitric acid condensate and an uncondensed nitrogen oxides gas stream; an absorption section configured to produce raw nitric acid and a tail gas; and a tail gas treatment system configured to form a purified tail gas. In a tail gas heating section a further heat exchanger configured to receive heat from the burner gas stream, said further heat exchanger being positioned relatively close to the reactor.
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公开(公告)号：US20180185834A1
公开(公告)日：2018-07-05
申请号：US15740554
申请日：2016-07-07
发明人： Tomotsugu Masuda , Masanao Yonemura , Masanori Demoto , Kazuhiro Iwamoto , Toshinobu Yasutake , Makoto Yokoyama
CPC分类号： B01J38/60 , B01D53/8625 , B01D53/8696 , B01D53/96 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01J21/063 , B01J23/30 , B01J23/92 , C11D3/042 , C11D3/046 , C11D7/08 , C11D7/10
摘要： Provided are: a cleaning agent for a denitration catalyst; and a denitration catalyst regeneration method and a denitration catalyst regeneration system which make it possible to efficiently remove matter adhering to a surface of a catalyst and to greatly restore catalytic performance. The regeneration method includes: a prewashing step (S12) of washing a denitration catalyst with water; a liquid agent cleaning step (S14) of immersing the denitration catalyst washed with water in a liquid agent containing an inorganic acid and a fluorine compound; a step of recovering the denitration catalyst from the liquid agent; and a finish washing step (S16) of washing the denitration catalyst recovered from the liquid agent with a finish cleaning liquid which is water or sulfamic acid-containing water.
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4.发明申请公开(公告)号：US20180126332A1
公开(公告)日：2018-05-10
申请号：US15863618
申请日：2018-01-05
申请人： PEERLESS MFG. CO
发明人： James M. VALENTINE , Jeffrey Michael BRODERICK , Thomas V. ELDREDGE , Saiprasad JANGITI , Eric LINDEMANN
CPC分类号： B01D53/8631 , B01D53/8625 , B01D53/90 , B01D53/9409 , B01D2251/2062 , B01D2251/2067 , B01D2257/40 , B01D2259/124 , B01J4/002 , B01J4/008 , B01J19/2405 , B01J2219/00063 , B01J2219/00164 , B01J2219/00186 , B01J2219/00202 , B01J2219/00231
摘要： A system for vaporizing and optionally decomposing a reagent, such as aqueous ammonia or urea, which is useful for NOx reduction, includes a cyclonic decomposition duct, wherein the duct at its inlet end is connected to an air inlet port and a reagent injection lance. The air inlet port is in a tangential orientation to the central axis of the duct. The system further includes a metering valve for controlling the reagent injection rate. A method for vaporizing and optionally decomposing a reagent includes providing a cyclonic decomposition duct which is connected to an air inlet port and an injection lance, introducing hot gas through the air inlet port in a tangential orientation to the central axis of the duct, injecting the reagent axially through the injection lance into the duct; and adjusting the reagent injection rate through a metering valve.
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公开(公告)号：US20170341024A1
公开(公告)日：2017-11-30
申请号：US15163854
申请日：2016-05-25
发明人： Matthew Gerard Boze
CPC分类号： B01D53/8696 , B01D53/8625 , B01D53/90 , B01D2251/2062 , B01D2257/404
摘要： A method, controller and computer readable storage medium for dosing ammonia in a selective catalytic reduction (SCR) system for reducing NOx emissions in a flue gas, are disclosed. The method generally includes calculating a running long term average of NOx emissions, calculating a running short term average of NOx emissions and automatically adjusting an instantaneous NOx setpoint based on the running long term and short term averages to ensure compliance with a permit limit. The ammonia dosing requirement is based on a chemical mass-balance approach, and accuracy is enhanced by adjusting for the NO2 to NO composition of NOx.
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公开(公告)号：US09802182B2
公开(公告)日：2017-10-31
申请号：US14205704
申请日：2014-03-12
申请人： BASF Corporation
IPC分类号： B01J29/06 , B01J27/182 , B01D53/56 , B01J29/85 , B01D53/94 , B01D53/86 , B01J35/00 , B01J37/02 , B01J29/76 , B01J29/70 , B01J35/04
CPC分类号： B01J29/85 , B01D53/8625 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D2255/2065 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/50 , B01J29/7065 , B01J29/763 , B01J35/002 , B01J35/04 , B01J37/0246 , B01J2229/183 , B01J2229/186 , B01J2229/24 , B01J2229/30 , B01J2229/38
摘要： Described are catalyst materials and catalytic articles comprising a metal exchanged SAPO material comprising a plurality of substitutional sites consisting essentially of Si(4Al) sites and substantially free of Si(0Al) sites. The materials and catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.
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公开(公告)号：US09782721B2
公开(公告)日：2017-10-10
申请号：US15009978
申请日：2016-01-29
CPC分类号： B01D53/8609 , B01D53/8625 , B01D53/8671 , B01D53/8696 , B01D53/90 , B01D53/9409 , B01D2251/2067 , B01D2251/40 , B01D2255/20723 , B01D2255/9155 , B01D2257/404 , B01D2258/0283 , F01N3/208 , F01N2570/04 , F01N2610/01 , F01N2610/02 , F01N2900/1404 , F01N2900/1602 , Y02T10/24
摘要： Systems and methods of continuous operation of a urea-SCR system at low temperatures (200-350° C.) in the presence of high SOx containing flue gas are described. The methods comprise introducing a solution of urea and an NO2 forming compound, preferably an alkaline earth metal nitrate, into an exhaust stream before the exhaust stream contacts an SCR catalyst.
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公开(公告)号：US09653190B2
公开(公告)日：2017-05-16
申请号：US14412664
申请日：2013-06-19
IPC分类号： G21F9/32 , G21F9/28 , G21F9/30 , G21F9/02 , F23G5/027 , F23G5/033 , F23G5/04 , F23J7/00 , G21F9/34 , G21F9/06 , B09B3/00 , C04B7/44 , B01D53/50 , B01D53/86
CPC分类号： G21F9/32 , B01D53/508 , B01D53/8625 , B01D2257/302 , B01D2257/404 , B01D2258/02 , B09B3/0083 , C04B7/4423 , F23G5/0276 , F23G5/033 , F23G5/04 , F23J7/00 , G21F9/02 , G21F9/06 , G21F9/28 , G21F9/30 , G21F9/34 , Y02P40/126
摘要： To provide a device for removing radioactive cesium from waste material containing radioactive cesium, doing so at low energy and in a dependable manner. The removal device 1 for radioactive cesium is provided with: a rotary kiln 41 which is provided with a burner 41b supplying from the kiln outlet an organic matter O3 contaminated with radioactive cesium, and an inorganic matter charging port 41a supplying from the kiln inlet inorganic matter S4 contaminated with radioactive cesium, and which is employed to burn the organic matter O3 together with the inorganic matter S4; and a recovery device cooling tower 51, a cyclone 52, a bag filter 53 for recovering cesium that has volatilized in the rotary kiln. A drying/crushing device (dryer 21, crusher 22) for drying and crushing the organic matter O1 prior to charging the radioactive cesium-contaminated organic matter to the rotary kiln can be provided. Additionally, a reforming/drying/crushing device (reformer 31, dryer 32, crusher 23) for reforming, drying, and crushing the inorganic matter S1 can be provided. During burning of the organic matter O3 together with the inorganic matter S4, a calcium source can be added as a reaction accelerant A to the rotary kiln.
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9.发明申请MERCURY REMOVAL APPARATUS, A FLUE GAS TREATMENT SYSTEM, AND A METHOD OF REMOVING MERCURY 审中-公开汞消除装置，燃气处理系统及其拆除方法公开(公告)号：US20170014762A1
公开(公告)日：2017-01-19
申请号：US15199283
申请日：2016-06-30
发明人： Masaru OKAMOTO , Hideaki SHIMADA , Shinichi TERADA
IPC分类号： B01D53/86
CPC分类号： B01D53/8665 , B01D53/501 , B01D53/8625 , B01D53/869 , B01D2255/806 , B01D2257/602 , B01D2258/0233 , B01D2258/0283 , B01D2258/0291 , F23J15/04 , F23J2215/60
摘要： A mercury removal apparatus for removing the metal mercury in an flue gas containing the metal mercury and halogen, including an electro discharging device including a first electrode and a second electrode facing the first electrode, and activating the mercury by generating a streamer discharge, an oxidizing catalyst device provided at an output of the electro discharging device, to oxidize the mercury by reacting with halogen in the flue gas.
摘要翻译： 一种用于除去含有金属汞和卤素的烟道气中的金属汞的除汞装置，包括包括第一电极和面对第一电极的第二电极的电放电装置，并通过产生流光放电来激活汞，氧化 催化剂装置设置在电放电装置的输出处，以通过与烟道气中的卤素反应来氧化汞。
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10.发明申请METHOD FOR HEAT-TREATING A MATERIAL FLOW AND FOR CLEANING RESULTING EXHAUST GASES 有权用于加热处理材料流动和清洁排出的排气的方法公开(公告)号：US20160339381A1
公开(公告)日：2016-11-24
申请号：US15114183
申请日：2015-01-22
CPC分类号： B01D53/343 , B01D46/4218 , B01D53/8603 , B01D53/8625 , B01D53/8631 , B01D53/8634 , B01D53/864 , B01D53/8668 , B01D53/8687 , B01D53/8696 , B01D53/90 , B01D2257/7027 , B01D2258/0233 , B01D2279/35 , C04B7/47 , F27B7/20 , F27B7/2025 , F27D17/001 , F27D17/004 , F27D17/008 , Y02P40/121 , C04B7/364
摘要： Methods for the heat treatment of a material flow and the cleaning of resulting exhaust gases are disclosed. The material flow may be preheated in a preheating zone, burned in a sintering zone, and cooled in a cooling zone. Exhaust gases of the sintering zone may flow through a preheater and be used for preheating the material flow. The exhaust gases leaving the preheater may be cooled at least partially in a comminuting device in interconnected operation or at least partially in a cooling device in direct operation. Exhaust gases may then be at least partly dedusted in a dust filter. A temperature of the dedusted exhaust gas may then be raised before the exhaust gas is cleaned of pollutants in at least one catalyst. A temperature at which the exhaust gases flow through the catalyst in direct operation may be higher, at least in phases, than a temperature at which the exhaust gases flow through the catalyst in interconnected operation.
摘要翻译： 公开了用于材料流的热处理和所得废气的清洁的方法。 材料流可以在预热区中预热，在烧结区中燃烧，并在冷却区中冷却。 烧结区的废气可能流过预热器，并用于预热料流。 离开预热器的废气可以至少部分地在互连操作中的粉碎装置中冷却，或至少部分地在直接操作的冷却装置中冷却。 然后废气可以至少部分地在除尘过滤器中除尘。 然后可以在排气在至少一种催化剂中清除污染物之前提高除尘废气的温度。 排气在直接操作中流过催化剂的温度可以比在互连操作中废气流过催化剂的温度至少相位更高。
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