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公开(公告)号：US12129170B2
公开(公告)日：2024-10-29
申请号：US17712551
申请日：2022-04-04
申请人： Casale SA
CPC分类号： C01B21/46 , B01D53/1493 , B01D53/56 , B01D53/78 , C01B21/28 , B01D2252/103 , B01J2219/00024
摘要： A dual-pressure plant for the synthesis of nitric acid comprising: a reactor (4) providing a gaseous effluent (15) containing nitrogen oxides; an absorption tower (6) nitrogen oxides react with water providing raw nitric acid and, said absorption tower operating at a pressure greater than the pressure of the reactor; a compressor (5) elevating the pressure of the reactor effluent (15) to the absorption pressure; said plant also comprising a first bleacher (37) and a second bleacher (7), said first bleacher (37) stripping with air (39) nitrogen oxides from the output stream (27) of the absorption tower (6) providing a partially stripped nitric acid stream (40) and a nitrogen oxides-loaded air stream (41), the former being fed to the second bleacher (7) and the latter being recycled to the delivery-side of said compressor (5).
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公开(公告)号：US20240091751A1
公开(公告)日：2024-03-21
申请号：US18513785
申请日：2023-11-20
申请人： BASF Corporation
发明人： Ivor Bull , Wen-Mei Xue , Patrick Burk , R. Samuel Boorse , William M. Jaglowski , Gerald Stephen Koermer , Ahmad Moini , Joseph A. Patchett , Joseph C. Dettling , Matthew Tyler Caudle
IPC分类号： B01J29/72 , B01D53/56 , B01D53/86 , B01D53/94 , B01J23/42 , B01J23/89 , B01J29/06 , B01J29/068 , B01J29/072 , B01J29/74 , B01J29/76 , B01J29/80 , B01J35/00 , B01J35/04 , B01J37/02 , C01B39/46
CPC分类号： B01J29/723 , B01D53/56 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D53/9431 , B01D53/9477 , B01J23/42 , B01J23/8926 , B01J29/061 , B01J29/068 , B01J29/072 , B01J29/743 , B01J29/76 , B01J29/763 , B01J29/80 , B01J35/0006 , B01J35/04 , B01J37/0215 , B01J37/0246 , C01B39/46 , B01D2251/206 , B01D2251/2062 , B01D2251/2067 , B01D2255/20715 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/903 , B01D2255/9032 , B01D2255/904 , B01D2255/9155 , B01D2257/40 , B01D2257/404 , B01D2258/012 , B01J2029/062 , Y02C20/10 , Y02T10/12 , Y10T428/24149
摘要： Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stability at high-reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica-to-alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.
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公开(公告)号：US20240091702A1
公开(公告)日：2024-03-21
申请号：US18509956
申请日：2023-11-15
IPC分类号： B01D53/60 , B01D19/00 , B01D53/14 , B01D53/50 , B01D53/56 , B01D53/62 , B01D53/73 , B01D53/76 , B01D53/78 , B01D53/96 , C01D5/02 , C01D7/07 , C01D7/12 , C01D9/06 , C01D13/00 , C25B1/34
CPC分类号： B01D53/60 , B01D19/0005 , B01D53/1406 , B01D53/1425 , B01D53/1475 , B01D53/1481 , B01D53/1493 , B01D53/502 , B01D53/56 , B01D53/62 , B01D53/73 , B01D53/76 , B01D53/78 , B01D53/96 , C01D5/02 , C01D7/07 , C01D7/12 , C01D9/06 , C01D13/00 , C25B1/34 , B01D2251/302 , B01D2251/304 , B01D2251/306 , B01D2251/604 , B01D2252/103 , B01D2252/2021 , B01D2252/205 , B01D2252/504 , B01D2257/302 , B01D2257/404 , B01D2257/504
摘要： The disclosure provides seven integrated methods for the chemical sequestration of carbon dioxide (CO2), nitric oxide (NO), nitrogen dioxide (NO2) (collectively NO2, where x=1, 2) and sulfur dioxide (SO2) using closed loop technology. The methods recycle process reagents and mass balance consumable reagents that can be made using electrochemical separation of sodium chloride (NaCl) or potassium chloride (KCl). The technology applies to marine and terrestrial exhaust gas sources for CO2, NOx and SO2. The integrated technology combines compatible and green processes that capture and/or convert CO2, NOx and SO2 into compounds that enhance the environment, many with commercial value.
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公开(公告)号：US20240025787A1
公开(公告)日：2024-01-25
申请号：US18224380
申请日：2023-07-20
申请人： L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude , American Air Liquide, Inc.
发明人： Remi TSIAVA , Bhupesh DHUNGEL
IPC分类号： C03B5/237 , F23L15/04 , F23J15/04 , F27D17/00 , C01B3/04 , B01D53/56 , B01D53/79 , C03B5/225
CPC分类号： C03B5/237 , F23L15/045 , F23J15/04 , F27D17/004 , C01B3/047 , B01D53/56 , B01D53/79 , C03B5/225 , F23C2900/9901 , C01B2203/0277 , C01B2203/0272 , C01B2203/0827 , B01D2251/2062 , B01D2257/404
摘要： A method for operating a furnace, the method including the steps of: combusting fuel with oxidant, thereby generating thermal energy and fumes, heating the furnace with a first part of the thermal energy generated in step a, evacuating the generated fumes from the furnace at a temperature of at least 900° C., the evacuated fumes containing a second part of the thermal energy generated in step a, and using the second part of the thermal energy generated in step a for heating the oxidant and as a heat source for cracking ammonia in a cracker into a mixture including hydrogen, nitrogen and un-cracked ammonia, at least part of the mixture produced in step d-ii being combusted as fuel in step a with at least part of the heated oxidant produced in step d-i.
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公开(公告)号：US11845067B2
公开(公告)日：2023-12-19
申请号：US18055708
申请日：2022-11-15
申请人： BASF Corporation
发明人： Ivor Bull , Wen-Mei Xue , Patrick Burk , R. Samuel Boorse , William M. Jaglowski , Gerald Stephen Koermer , Ahmad Moini , Joseph A. Patchett , Joseph C. Dettling , Matthew Tyler Caudle
IPC分类号： B01J29/72 , B01J29/068 , B01D53/56 , B01D53/94 , B01J23/42 , B01J23/89 , B01J29/072 , B01J29/76 , B01J35/00 , B01J35/04 , B01J37/02 , B01J29/74 , B01D53/86 , B01J29/06 , B01J29/80 , C01B39/46
CPC分类号： B01J29/723 , B01D53/56 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D53/9431 , B01D53/9477 , B01J23/42 , B01J23/8926 , B01J29/061 , B01J29/068 , B01J29/072 , B01J29/743 , B01J29/76 , B01J29/763 , B01J29/80 , B01J35/0006 , B01J35/04 , B01J37/0215 , B01J37/0246 , C01B39/46 , B01D2251/206 , B01D2251/2062 , B01D2251/2067 , B01D2255/20715 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/903 , B01D2255/904 , B01D2255/9032 , B01D2255/9155 , B01D2257/40 , B01D2257/404 , B01D2258/012 , B01J2029/062 , Y02C20/10 , Y02T10/12 , Y10T428/24149
摘要： Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.
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6.发明授权公开(公告)号：US11839862B2
公开(公告)日：2023-12-12
申请号：US17684371
申请日：2022-03-01
IPC分类号： B01J19/00 , B01J19/24 , B01D53/50 , B01D53/56 , B01D53/60 , B01D53/76 , B01D53/30 , B01D53/34
CPC分类号： B01J19/006 , B01D53/50 , B01D53/56 , B01D53/60 , B01D53/76 , B01J19/2405 , B01D53/30 , B01D53/346 , B01D2251/10 , B01D2251/108 , B01D2258/06 , B01D2259/4508
摘要： One aspect of the invention relates to a method comprising a single-stage conversion of an atmospheric pollutant, such as NO, NO2 and/or SOx in a first stream to one or more mineral acids and/or salts thereof by reacting with nonionic gas phase chlorine dioxide (ClO20), wherein the reaction is carried out in the gas phase. Another aspect of the invention relates to a method comprising first adjusting the atmospheric pollutant concentrations in a first stream to a molar ratio of about 1:1, and then reacting with an aqueous metal hydroxide solution (MOH). Another aspect of the invention relates to an apparatus that can be used to carry out the methods disclosed herein. The methods disclosed herein are unexpectedly efficient and cost effective, and can be applied to a stream comprising high concentration and large volume of atmospheric pollutants.
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公开(公告)号：US11833471B2
公开(公告)日：2023-12-05
申请号：US16830338
申请日：2020-03-26
CPC分类号： B01D53/9427 , B01D46/2422 , B01D53/56 , F01N13/017 , B01D53/9418 , F01N2450/30
摘要： A catalysed filter system for treating particulate-containing exhaust gas from a stationary emission source comprises an elongate filter element comprising porous walls which define a hollow section and a substrate material supporting a catalyst component disposed within the hollow section, the arrangement being such that gas entering the hollow section of the elongate filter element from across the porous walls thereof must contact the substrate material supporting the catalyst component before exiting the hollow section of the elongate filter element.
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公开(公告)号：US20230360902A1
公开(公告)日：2023-11-09
申请号：US18028996
申请日：2021-10-20
发明人： Alex Robinson , Matthew Gear
IPC分类号： H01J65/04 , H01J61/10 , H01J61/06 , H01J61/02 , H01J61/16 , B01D53/00 , B01D53/50 , B01D53/56 , B01D53/60 , B01D53/44 , C02F1/32
CPC分类号： H01J65/044 , H01J61/10 , H01J61/06 , H01J61/025 , H01J61/16 , B01D53/007 , B01D53/50 , B01D53/56 , B01D53/60 , B01D53/44 , C02F1/325 , B01D2258/02 , B01D2259/804 , B01D2259/806 , B01D2257/302 , B01D2257/404 , B01D2257/708 , C02F2201/3221 , C02F2201/326 , C02F2101/30
摘要： There is provided a photoreactor for the remediation of gaseous emissions and/or contaminated water using ultraviolet (UV) or vacuum ultraviolet (VUV). There is also provided an emission source for generating UV and/or VUV, the source comprising: a microwave generator; a chamber arranged to receive microwaves generated by the microwave generator, the chamber comprising: a gas comprising species for forming excimers; a resonator arranged to receive the microwaves in the chamber and generate a plasma; a first electrode spaced apart from the resonator; and a voltage source configured to generate an electric field between the resonator and the first electrode, wherein, on application of the electric field, the electric field drives electrons and/or ions from the plasma to generate excimers and produce vacuum ultraviolet or ultraviolet emission. There are also provided methods of generating UV and/or VUV, and methods of remediating fluids.
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公开(公告)号：US11794174B2
公开(公告)日：2023-10-24
申请号：US16462048
申请日：2017-12-05
申请人： BASF Corporation
CPC分类号： B01J29/763 , B01D53/56 , B01D53/58 , B01J23/42 , B01J35/0006 , B01J37/0244 , F01N3/2066 , F01N3/2803 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/20776 , B01D2255/50 , B01D2255/9022 , B01D2258/01 , F01N2370/02
摘要： The present invention relates to a catalyst, preferably for the selective catalytic reduction of NOx, for the oxidation of ammonia, for the oxidation of NO and for the oxidation of a hydrocarbon, the catalyst comprising a washcoat comprising one or more layers, the washcoat being disposed on a substrate, wherein the washcoat comprises a platinum group metal supported on a metal oxide support material, and one or more of an oxidic compound of V, an oxidic compound of W and a zeolitic material comprising one or more of Cu and Fe.
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公开(公告)号：US20230264957A1
公开(公告)日：2023-08-24
申请号：US18024170
申请日：2021-09-14
发明人： Bent VIGELAND , Halvor ØIEN , Ronald RÖSLER , André DE SMET , Peter FAUCONNIER
CPC分类号： C01B21/40 , B01D53/56 , B01D2252/103 , B01D2257/404
摘要： A dual pressure plant for the production of nitric acid, comprising:
an air compressor;
a converter, operating at a low pressure (LP), operable to be fed with a stream of an ammonia/pressurized air mixture to produce an LP gaseous NOx gas/steam mixture, comprising water, NO, NO2 and N2O4;
a NOx gas compressor;
an absorber unit (6); and
a bleacher unit;
wherein
the plant comprises means for directing the NOx-loaded stripping gas to the downstream side of the NOx gas compressor;
the plant being characterized in that it further comprises
a high-pressure (HP) water electrolyser, in fluid communication with the bleacher unit.
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