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公开(公告)号:US11848453B2
公开(公告)日:2023-12-19
申请号:US17539770
申请日:2021-12-01
发明人: Jee Youn Hwang , Eunjik Lee , Dahee Kwak , Ji-Hoon Jang , Songi Oh
IPC分类号: B01J21/18 , B01J23/16 , B01J23/20 , B01J23/22 , B01J23/26 , B01J23/34 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/46 , B01J23/54 , B01J23/60 , B01J23/62 , B01J23/648 , B01J23/652 , B01J23/656 , B01J23/72 , B01J23/74 , B01J23/745 , B01J23/75 , B01J23/755 , B01J23/80 , B01J23/835 , B01J23/84 , B01J23/847 , B01J23/86 , B01J23/89 , B01J37/34 , H01M4/92
CPC分类号: H01M4/926
摘要: Provided is a method of preparing an intermetallic catalyst which includes applying ultrasonic wave to a precursor mixture solution including a noble metal precursor, a transition metal precursor, and a carbon support having an average pore size of about 6 nm to about 15 nm and a specific surface area of about 200 m2/g to about 2000 m2/g to form alloy particles in pores of the carbon support, and annealing the alloy particles in the pores of the carbon support to form intermetallic alloy particles.
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公开(公告)号:US11806704B2
公开(公告)日:2023-11-07
申请号:US17859485
申请日:2022-07-07
发明人: Young Suk Jo , Chang Won Yoon , Hyuntae Sohn , Hyangsoo Jeong , Seong Cheol Jang , Yeong Cheon Kim , Jonghee Han , Suk Woo Nam
IPC分类号: B01J8/02 , B01J19/24 , B01J23/46 , B01J23/10 , B01J29/08 , B01J35/04 , B01J35/00 , C01B3/04 , H01M8/0606 , B01J23/648
CPC分类号: B01J8/0278 , B01J19/2475 , B01J23/10 , B01J23/462 , B01J23/6486 , B01J29/084 , B01J35/0006 , B01J35/04 , C01B3/047 , H01M8/0606 , B01J2208/00884 , B01J2208/00973
摘要: The present specification discloses a membrane reactor comprising a reaction region; a permeate region; and a composite membrane disposed at a boundary of the reaction region and the permeate region, wherein the reaction region comprises a bed filled with a catalyst for dehydrogenation reaction, wherein the composite membrane comprises a support layer including a metal with a body-centered-cubic (BCC) crystal structure, and a catalyst layer including a palladium (Pd) or a palladium alloy formed onto the support layer, wherein ammonia (NH3) is supplied to the reaction region, the ammonia is converted into hydrogen (H2) by the dehydrogenation reaction in the presence of the catalyst for dehydrogenation reaction, and the hydrogen permeates the composite membrane and is emitted from the membrane reactor through the permeate region.
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公开(公告)号:US20210220804A1
公开(公告)日:2021-07-22
申请号:US16303567
申请日:2017-05-24
IPC分类号: B01J23/847 , B01J37/08 , B01J37/00 , B01J23/00 , C07C51/25 , B01J23/648 , C11C3/00 , C07C67/303
摘要: This invention relates to the synthesis of new catalysts based on earth crust abundant mixed oxides that can produce cleavage of fatty acids (FA), FA methyl esters, or even lipids in a single step using oxygen as oxidant in solventless conditions.
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公开(公告)号:US11033880B2
公开(公告)日:2021-06-15
申请号:US16586980
申请日:2019-09-28
申请人: Exelus, Inc.
IPC分类号: B01J23/06 , B01J23/00 , B01J23/34 , B01J23/648 , B01J23/72 , B01J23/745 , B01J35/02 , B01J35/10 , C07C5/333 , B01J21/02 , B01J21/06 , B01J21/08
摘要: The invention relates to a catalyst composition suitable for the dehydrogenation of paraffins having 2-8 carbon atoms comprising zinc oxide and titanium dioxide, optionally further comprising oxides of cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), lanthanum (La), neodymium (Nd), praseodymium (Pr), samarium (Sm), terbium (Tb), ytterbium (Yb), yttrium (Y), tungsten (W) and Zirconium (Zr) or mixtures thereof, wherein said catalyst composition is substantially free of chromium and platinum. The catalysts possess unique combinations of activity, selectivity, and stability. Methods for preparing improved dehydrogenation catalysts and a process for dehydrogenating paraffins having 2-8 carbon atoms, comprising contacting the mixed metal oxide catalyst with paraffins are also described. The catalyst may also be disposed on a porous support in an attrition-resistant form and used in a fluidized bed reactor.
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公开(公告)号:US10938038B2
公开(公告)日:2021-03-02
申请号:US15874000
申请日:2018-01-18
IPC分类号: H01M4/92 , H01M8/1004 , H01M4/86 , B01J21/18 , B01J23/648 , B01J37/02 , H01M8/1018 , B01J23/46 , H01M4/88 , B01J23/56 , B01J23/42 , H01M8/04298
摘要: A method of operating a fuel cell having an anode, a cathode and a polymer electrolyte membrane disposed between the anode and the cathode, includes feeding the anode with an impure hydrogen stream having low levels of carbon monoxide up to 5 ppm, and wherein the anode includes an anode catalyst layer including a carbon monoxide tolerant catalyst material, wherein the catalyst material includes: (i) a binary alloy of PtX, wherein X is a metal selected from the group consisting of rhodium and osmium, and wherein the atomic percentage of platinum in the alloy is from 45 to 80 atomic % and the atomic percentage of X in the alloy is from 20 to 55 atomic %; and (ii) a support material on which the PtX alloy is dispersed; wherein the total loading of platinum group metals (PGM) in the anode catalyst layer is from 0.01 to 0.2 mgPGM/cm2.
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公开(公告)号:US10220372B2
公开(公告)日:2019-03-05
申请号:US15329785
申请日:2015-07-31
申请人: LG HAUSYS, LTD.
发明人: Dong-Il Lee , Joo-Hwan Seo , Hyun-Jae Kim , Hye-Youn Jang , Seong-Moon Jung
IPC分类号: B01J21/06 , B01J23/00 , B01J23/06 , B01J23/20 , B01J23/26 , B01J23/28 , B01J23/30 , B01J23/60 , B01J23/68 , B01J23/80 , B01J35/00 , B01J35/06 , B01J35/10 , B01J37/02 , B01J37/03 , B01J23/648 , B01J23/652 , B01J23/847 , B01J23/888
摘要: A photocatalytic functional film has a structure of a substrate, a barrier layer and a photocatalytic layer stacked one on another. The barrier layer is an amorphous TiO2 film, the photocatalyst layer comprises an amorphous TiO2 film, and particles of visible light responsive photocatalytic material formed on the surface of the amorphous TiO2 film. A method for producing a photocatalytic functional film includes: adding an alcohol solvent and an acid to a titanium precursor to obtain a TiO2 amorphous sol by dehydration and de-alcoholization reaction; applying and drying the TiO2 amorphous sol on a substrate to form a barrier layer; and applying and drying a composition formed by mixing particles of visible light responsive photocatalyst material with the TiO2 amorphous sol on the barrier layer, to form a photocatalyst layer.
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公开(公告)号:US10183246B2
公开(公告)日:2019-01-22
申请号:US15513214
申请日:2015-06-25
申请人: Haldor Topsøe A/S
IPC分类号: B01D39/20 , B01D39/08 , B01J37/02 , B01J23/00 , B01J23/22 , B01J23/28 , B01J23/30 , B01J23/63 , B01J23/648 , B01J23/652 , B01J35/06 , B01J37/00
摘要: A catalyzed fabric filter substrate and a method of preparing the substrate comprising the steps of a) providing a fabric filter substrate b) providing an aqueous impregnation liquid comprising an aqueous hydrosol of one or more catalyst metal precursor compounds dispersed on nanoparticles of an oxidic metal carrier, a surfactant and a dispersing agent selected from the group of primary amines; c) impregnating the fabric filter substrate with the impregnation liquid; and d) drying and thermal activating the impregnated fabric filter substrate at a temperature below 300° C. to convert the one or more metal compounds of the catalyst precursor to their catalytically active form.
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公开(公告)号:US10118880B2
公开(公告)日:2018-11-06
申请号:US15526124
申请日:2015-11-13
发明人: Juan Luis Sanz Yague , Francisco Antonio Ladrón De Guevara Vidal , Laura Sánchez Holgado , Yolanda Peña Gómez , Carmen Maria Reyes Valle , Ana Rosa Sánchez Sánchez
IPC分类号: C07C29/34 , C07C29/80 , B01J21/00 , B01J21/10 , B01J37/03 , B01J37/06 , B01J37/02 , B01J23/44 , B01J37/08 , B01J37/18 , B01J23/648 , B01J23/08 , B01J23/62 , B01J23/72 , B01J23/89 , B01J8/02 , B01D3/14 , B01D3/00
摘要: The present disclosure generally relates to processes for preparation of n-butanol, n-octanol and n-decanol from a reaction mixture comprising ethanoi and n-hexanol by Guerbet condensation. In some aspects, the present disclosure relates to improvements in n-octanol and n-decanol yield and selectivity by the selection of process reaction conditions such as, but not limited to, mole ratio of n-hexanol to ethanol. The present disclosure further generally relates to integrated processes for preparation of n-butanol in a n-butanol reactor from a reaction mixture comprising ethanol and hydrogen to produce a n-butanol product stream by Geurbet condensation comprising n-butanol and n-hexanol and for preparation of n-octanol in a n-octanol reactor from a reaction mixture comprising ethanol, n-hexanol and hydrogen to produce a n-octanol product stream by Geurbet condensation comprising n-butanol, n-hexanol and n-octanol. A predominant proportion of the n-hexanol contained in the n-butanol and n-octanol product streams is isolated and recycled to the n-octanol reaction mixture. In some aspects, the present disclosure relates to improvements in n-octanol and n-butanol yield and selectivity by the selection of process reaction conditions such as, but not limited to, mole ratio of n-hexanol to ethanol and recovery and recycle of n-hexanol.
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公开(公告)号:US20180214858A1
公开(公告)日:2018-08-02
申请号:US15745085
申请日:2016-07-29
申请人: TOTO LTD. , THE UNIVERSITY OF TOKYO , Japan Technological Research Association of Artificial Photosynthesis Chemical Process
发明人: Hiromasa TOKUDOME , Sayuri OKUNAKA , Kazunari DOMEN , Takashi HISATOMI , Qian WANG , Qingxin JIA
IPC分类号: B01J35/00 , B01J35/02 , B01J23/58 , B01J23/63 , B01J23/62 , B01J23/648 , B01J23/86 , C01B3/04
摘要: A photocatalytic member comprises a base and a photocatalytic layer fixed on the base. The photocatalytic layer comprises first photocatalyst particles being visible light responsive photocatalyst particles for hydrogen generation, second photocatalyst particles being visible light responsive photocatalyst particles for oxygen generation, and conductive particles which are provided between the first photocatalyst particle and the second photocatalyst particle, have Fermi level at a negative position relative to an electronic energy level at the upper end of the valence band of the first photocatalyst particle and at a positive position relative to an electronic energy level at the bottom end of the conduction band of the second photocatalyst particle, and are able to store an electron and a hole. In the photocatalytic layer, the conductive particles are located to be coupled to both the first photocatalyst particles and the second photocatalyst particles.
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公开(公告)号:US20180145338A1
公开(公告)日:2018-05-24
申请号:US15874000
申请日:2018-01-18
IPC分类号: H01M4/92 , B01J23/648 , B01J37/02 , H01M4/86 , B01J21/18 , H01M8/1004 , H01M8/1018 , H01M4/88 , B01J23/46
CPC分类号: H01M4/921 , B01J21/18 , B01J23/466 , B01J23/6484 , B01J23/6486 , B01J37/0201 , H01M4/86 , H01M4/881 , H01M4/8828 , H01M4/8842 , H01M4/925 , H01M4/926 , H01M8/1004 , H01M8/1018 , H01M2004/8684 , H01M2008/1095 , H01M2250/20 , H01M2300/0082 , Y02E60/521 , Y02T90/32
摘要: A method of operating a fuel cell having an anode, a cathode and a polymer electrolyte membrane disposed between the anode and the cathode, includes feeding the anode with an impure hydrogen stream having low levels of carbon monoxide up to 5 ppm, and wherein the anode includes an anode catalyst layer including a carbon monoxide tolerant catalyst material, wherein the catalyst material includes: (i) a binary alloy of PtX, wherein X is a metal selected from the group consisting of rhodium and osmium, and wherein the atomic percentage of platinum in the alloy is from 45 to 80 atomic % and the atomic percentage of X in the alloy is from 20 to 55 atomic %; and (ii) a support material on which the PtX alloy is dispersed; wherein the total loading of platinum group metals (PGM) in the anode catalyst layer is from 0.01 to 0.2 mgPGM/cm2.
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