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1.
公开(公告)号:US20190248663A1
公开(公告)日:2019-08-15
申请号:US16396885
申请日:2019-04-29
CPC分类号: C01B39/48 , B01D53/9418 , B01D2251/2062 , B01D2255/20761 , B01D2255/50 , B01J29/7015 , B01J29/763 , B01J2229/186 , C01B39/026 , C07C1/20 , C07C2529/70 , C07C2529/72 , F01N3/2066 , F01N2370/04
摘要: Disclosed is a synthesis process of a crystalline material with the CHA structure, which comprises the following steps: i) Preparation of a mixture that comprises one source of water, one source of a tetravalent element Y, one source of an alkaline or alkaline earth cation (A), one source of a trivalent element X, and one organic molecule (OSDA1) with the structure [R1R2R3R4N+]Q−, being the molar composition: n X2O3:YO2:a A:m OSDA1:z H2O, ii) crystallisation of the mixture obtained in i) in a reactor, iii) recovery of the crystalline material obtained in ii).
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公开(公告)号:US20180355776A1
公开(公告)日:2018-12-13
申请号:US15616049
申请日:2017-06-07
CPC分类号: F01N3/208 , B01D53/90 , B01D53/9409 , B01D53/9431 , B01D53/9477 , B01D2251/2062 , F01N3/2073 , F01N13/107
摘要: A system is provided. The system includes an exhaust aftertreatment system configured to treat emissions from a gas turbine. The exhaust aftertreatment system includes multiple ammonia injection grids arranged in multiple stages. Each ammonia injection grid of the multiple ammonia injection grids is configured to inject ammonia into an exhaust flow from the gas turbine. Each ammonia injection grid of the multiple ammonia injection grids is individually tuned to operate with a specific load condition of the gas turbine.
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公开(公告)号:US20180354794A1
公开(公告)日:2018-12-13
申请号:US15574075
申请日:2016-05-17
发明人: Johannes DAMMEIER
CPC分类号: C01B21/40 , B01D53/56 , B01D53/8628 , B01D2251/2062 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/106 , B01D2255/20723 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01J10/002 , B01J19/0006 , B01J19/2445 , B01J2219/00164 , C01B21/26 , C01B21/262 , C01B21/28
摘要: An apparatus and a process for reducing the concentration of NOx nitrogen oxides in residual gas may be employed during shutdown and/or startup of apparatuses for preparing nitric acid. An example apparatus for reducing NOx nitrogen oxides may include a reactor that produces NOx nitrogen oxides, an absorption apparatus that absorbs at least part of the NOx nitrogen oxides produced in an aqueous composition, a residual gas purification plant that decomposes and/or reduces unabsorbed NOx nitrogen oxides, feed means for feeding the NOx nitrogen oxides to the absorption apparatus, discharge means for discharging the unabsorbed NOx nitrogen oxides from the absorption apparatus to the residual gas purification plant, and a bypass that transfers a gas mixture from the reactor to the residual gas purification plant while bypassing the absorption apparatus during startup and/or shutdown of the apparatus for preparing nitric acid.
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公开(公告)号:US20180346341A1
公开(公告)日:2018-12-06
申请号:US15779540
申请日:2017-01-30
申请人: Umicore AG & Co. KG
发明人: Nuria Martín García , Manuel Moliner Marín , Avelino Corma Canós , Joakim Reimer Thøgersen , Peter Nicolai Ravnborg Vennestrøm
CPC分类号: C01B39/48 , B01D53/9418 , B01D2251/2062 , B01D2255/2027 , B01D2255/20738 , B01D2255/50 , B01J29/76 , B01J29/7615 , B01J29/763 , B01J37/0246 , B01J2229/183 , B01J2229/186 , C01B39/026 , C01B39/04 , C01B39/065 , C01P2002/60 , C01P2002/72
摘要: A method for the direct synthesis of a crystalline material with the AEI zeolithic structure containing iron-species and being essentially free of alkali ions, comprising the following steps: (i) preparation of a mixture containing water, a high-silica zeolite as a main source of silica and alumina, an alkyl-substituted cyclic ammonium cation as organic structure directing agent (OSDA), a source of iron, and a source of an alkali metal ion [Alk], to obtain a final synthesis mixture having the following molar composition: SiO2:aAl2O3:bFe:cOSDA:dAlk:eH2O wherein a is in the range from 0.001 to 0.2; wherein b is in the range from 0.001 to 0.2; wherein c is in the range from 0.01 to 2; wherein d is in the range from 0.001 to 2; wherein e is in the range from 1 to 200; (ii) crystallization of the mixture achieved in (i); (iii) recovery of the crystalline material achieved in (ii); (iv) calcination of the crystalline material from step (iii); and (v) removal of the alkali metal cation, present in the calcined crystalline material after step (iv) to obtain a final molar composition: SiO2:oAl2O3:pFe:qAlk wherein o is in the range from 0.001 to 0.2, p is in the range from 0.001 to 0.2 and q is below 0.02.
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5.
公开(公告)号:US20180318764A1
公开(公告)日:2018-11-08
申请号:US15972724
申请日:2018-05-07
CPC分类号: B01D53/9481 , B01D53/9409 , B01D53/9418 , B01D53/944 , B01D2251/2062 , B01D2251/2067 , B01D2258/012 , F01N3/021 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/0885 , F01N3/103 , F01N3/2066 , F01N2570/14
摘要: A method for nitrogen monoxide (NO) oxidation in catalytic systems is disclosed. The method includes receiving NO-containing exhaust gas from an internal combustion engine system, reacting NO with a stoichiometric amount of oxygen gas (O2), the reacting taking place in the presence of a sorbent and a catalyst, and recovering an amount of nitrogen dioxide (NO2) surpassing the equilibrium limitation of the NO oxidation reaction.
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公开(公告)号:US20180306509A1
公开(公告)日:2018-10-25
申请号:US16020364
申请日:2018-06-27
发明人: Toshihiro Fukuda , Seiji Kagawa , Jun Satou
IPC分类号: F26B25/00 , F23J15/02 , B01D1/18 , F23J15/00 , B01D53/34 , B01D53/50 , C02F103/18 , B01D53/75 , B01D53/64 , B01D53/86
CPC分类号: F26B25/009 , B01D1/18 , B01D53/343 , B01D53/504 , B01D53/505 , B01D53/64 , B01D53/75 , B01D53/8625 , B01D2251/2062 , B01D2251/2067 , B01D2251/404 , B01D2251/604 , B01D2257/2045 , B01D2257/302 , B01D2257/404 , B01D2257/602 , B01D2258/0283 , C02F2103/18 , F23J15/006 , F23J15/022
摘要: A method of spray drying and washing using a spray drying apparatus, includes: spraying dehydrated filtrate from a spray nozzle hung down from a top side of the spray drying apparatus; introducing a part of flue gas into the spray drying apparatus to dry the dehydrated filtrate; wherein a compressed air is introduced into the spray nozzle to facilitate the spraying and into the wash nozzle to perform air purging during the spray drying, and jetting washing liquid from a wash nozzle provided on a side wall of the spray drying apparatus to wash the spray nozzle and an inside of the spray drying apparatus body, wherein the feeding of the dehydrated filtrate to the spray nozzle is stopped during the washing.
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公开(公告)号:US20180297014A1
公开(公告)日:2018-10-18
申请号:US15981160
申请日:2018-05-16
申请人: BASF CORPORATION
IPC分类号: B01J23/10 , B01D53/94 , B01J21/06 , B01J21/04 , B01J29/76 , B01J35/00 , B01J35/02 , B01J35/04 , B01J37/04 , B01J37/02 , B01J37/08 , F01N3/20
CPC分类号: B01J23/10 , B01D53/94 , B01D53/9418 , B01D2251/2062 , B01D2251/2067 , B01D2255/206 , B01D2255/2061 , B01D2255/2065 , B01D2255/20715 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , B01D2255/9155 , B01D2255/9202 , B01D2255/9205 , B01J21/04 , B01J21/066 , B01J29/763 , B01J35/0006 , B01J35/0013 , B01J35/0073 , B01J35/026 , B01J35/04 , B01J37/0211 , B01J37/0215 , B01J37/0236 , B01J37/0248 , B01J37/04 , B01J37/086 , F01N3/20 , F01N3/2066 , Y02C20/10
摘要: Described is a catalyst composition suitable for use as a selective catalytic reduction catalyst, including small-pore molecular sieve particles having a pore structure and a maximum ring size of eight tetrahedral atoms and impregnated with a promoter metal, and metal oxide particles dispersed within the small-pore molecular sieve particles and external to the pore structure of the small-pore molecular sieve particles, wherein the metal oxide particles include one or more oxides of a transition metal or lanthanide of Group 3 or Group 4 of the Periodic Table. A method for preparing the catalyst, a method for selectively reducing nitrogen oxides, and an exhaust gas treatment system are also described.
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8.
公开(公告)号:US10081010B2
公开(公告)日:2018-09-25
申请号:US15126171
申请日:2014-10-15
申请人: Haldor Topsøe A/S
IPC分类号: B01J29/46 , B01D53/94 , B01J37/00 , B01J29/06 , B01J29/072 , B01J29/14 , B01J29/24 , B01J29/68 , B01J29/76 , B01J29/83 , B01J29/85 , B01J37/02 , B01J37/04 , B01J37/08 , B01J37/30 , B01J38/08
CPC分类号: B01J29/46 , B01D53/9418 , B01D2251/2062 , B01D2251/208 , B01D2255/20738 , B01D2255/20746 , B01D2255/20761 , B01D2255/50 , B01D2255/504 , B01J29/061 , B01J29/072 , B01J29/146 , B01J29/24 , B01J29/68 , B01J29/7607 , B01J29/7615 , B01J29/763 , B01J29/83 , B01J29/85 , B01J37/0018 , B01J37/0036 , B01J37/0238 , B01J37/04 , B01J37/08 , B01J37/30 , B01J38/08 , B01J2229/183 , B01J2229/186 , B01J2229/38 , B01J2229/40
摘要: Method for the preparation of a metal-exchanged zeolites or mixtures of metal-exchanged zeolites, such as Cu-SSZ-13, Cu-ZSM-5, Cu-beta, or Fe-beta, comprising the steps of providing a dry mixture of a) one or more microporous zeotype materials that exhibit ion exchange capacity and b) one or more metal compounds; heating the mixture in a gaseous atmosphere containing ammonia to a temperature lower than 300° C. for a time sufficient to initiate and perform a solid state ion exchange of ions of the metal compound and ions of the zeolite material; and obtaining the metal-exchanged zeolite material.
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公开(公告)号:US20180243680A1
公开(公告)日:2018-08-30
申请号:US15966529
申请日:2018-04-30
申请人: IHI Corporation
发明人: Toshiyuki Naito
IPC分类号: B01D53/047 , B01D53/26 , B01D53/62 , B01D53/96
CPC分类号: B01D53/047 , B01D53/26 , B01D53/261 , B01D53/62 , B01D53/8625 , B01D53/869 , B01D53/96 , B01D2251/2062 , B01D2253/102 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2253/204 , B01D2257/404 , B01D2257/504 , B01D2257/80 , B01D2258/0283 , B01D2259/40007 , B01D2259/40013 , B01D2259/40028 , B01J20/18 , B01J20/226 , Y02C10/04 , Y02C10/08 , Y02P20/124 , Y02P20/152 , Y02P20/57
摘要: A carbon dioxide recovery apparatus has a separator which separates carbon dioxide from a gas by utilizing adsorption and desorption of carbon dioxide to and from an adsorbent caused by pressure fluctuation, the separator including a pressurizer which pressurizes the gas to a pressure that the adsorbent is capable of adsorbing carbon dioxide, and has a dryer having a hygroscopic agent for drying the gas. A regeneration system supplies the residual gas discharged from the separator to the dryer as a regeneration gas for regenerating the hygroscopic agent in the dryer, and the regeneration gas to be supplied to the dryer is heated by an energy converter by utilizing a pressure of a post-regeneration gas discharged by the regeneration of the hygroscopic agent.
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公开(公告)号:US20180238219A1
公开(公告)日:2018-08-23
申请号:US15880831
申请日:2018-01-26
CPC分类号: F01N3/2073 , B01D53/9409 , B01D53/9418 , B01D53/9495 , B01D2251/2062 , F01N2240/25 , F01N2610/02 , F01N2610/1406 , F02D9/04 , F02D37/02 , F02D41/0007 , F02D41/0235 , F02D41/024 , F02D41/1446 , F02D41/1448 , Y02A50/2325 , Y02C20/10 , Y02T10/26 , Y10S903/904
摘要: Methods and systems are provided for an exhaust gas aftertreatment device. In one example, a method may include adjusting one or more engine operating parameters to produce ammonia in an ammonia generating device in response to an ammonia demand.
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