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公开(公告)号:US20240228420A9
公开(公告)日:2024-07-11
申请号:US18383156
申请日:2023-10-24
发明人: Jong Wook BAE , Xu WANG , So Yun JEONG , Eun Jeong KIM , Zafar FAISAL , Ali MANSOOR
IPC分类号: C07C67/00 , B01J21/08 , B01J23/80 , B01J29/65 , B01J29/68 , B01J35/02 , B01J35/10 , B01J37/00 , B01J37/08 , B01J37/10 , B01J37/18 , B01J37/30 , C01B39/44
CPC分类号: C07C67/00 , B01J21/08 , B01J23/80 , B01J29/65 , B01J29/68 , B01J35/023 , B01J35/1019 , B01J35/1038 , B01J37/0018 , B01J37/082 , B01J37/10 , B01J37/18 , B01J37/30 , C01B39/445
摘要: Disclosed are a tandem catalyst for synthesizing methyl acetate from carbon dioxide, a method for preparing the same, and a method for preparing methyl acetate using the same. The tandem catalyst of the present invention includes a first catalyst having a core-shell structure including a composite metal oxide core and a silica shell surrounding a surface of the composite metal oxide core, and a second catalyst including nano-ferrierite (N-FER) zeolite.
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公开(公告)号:US20240174524A1
公开(公告)日:2024-05-30
申请号:US18059705
申请日:2022-11-29
发明人: Lianhui Ding
IPC分类号: C01B39/48 , B01J29/70 , B01J35/00 , B01J35/10 , B01J37/00 , B01J37/02 , B01J37/03 , B01J37/04 , B01J37/06 , B01J37/08
CPC分类号: C01B39/48 , B01J29/7007 , B01J35/0013 , B01J35/1019 , B01J35/1023 , B01J35/1042 , B01J35/1061 , B01J37/0018 , B01J37/0236 , B01J37/036 , B01J37/04 , B01J37/06 , B01J37/08 , C01P2004/03 , C01P2004/64 , C01P2006/12 , C01P2006/14 , C01P2006/16
摘要: Methods for synthesizing a nano-sized zeolite beta are described. The method may include mixing alumina and tetraethylammonium hydroxide to form an aluminum solution; mixing silica, additional TEAOH, and water to form a silica slurry; and adding the aluminum solution into the silica slurry and mixing to form an aluminosilicate gel. The method may further include transferring the aluminosilicate gel to an autoclave operated at 120° C. to 160° C. for 2 to 4 days at a rotational speed of 60 to 100 rotations per minute to form a zeolite precursor colloid; washing the zeolite precursor colloid with water to form a washed colloid; drying the washed colloid at 80° C. to 150° C. for 6 to 24 hours to form a zeolite precursor; and calcining the zeolite precursor at 400° C. to 650° C. for 2 to 8 hours to form the nano-sized zeolite beta.
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公开(公告)号:US20240139719A1
公开(公告)日:2024-05-02
申请号:US18382724
申请日:2023-10-23
发明人: Hideaki YONEDA , Kazuki YANAGISAWA , Misato MAKI , Masahiro MOHRI , Jumpei YOSHIDA , Noritatsu TSUBAKI
IPC分类号: B01J27/236 , B01J23/755 , B01J23/86 , B01J37/04 , B01J37/06 , B01J37/08 , C01G53/00 , C07C1/04
CPC分类号: B01J27/236 , B01J23/755 , B01J23/866 , B01J37/04 , B01J37/06 , B01J37/08 , C01G53/006 , C07C1/043 , B01J35/1019 , C01P2002/22 , C01P2002/72 , C01P2006/12 , C01P2006/14 , C01P2006/16
摘要: A catalyst for methane synthesis is made up from layered double hydroxides represented by the following general formula (1).
[M2+1-xM3+x(OH)2]x+[An−x/n·yH2O] (1)
In formula (1), M2+ is Ni2+ and M3+ is Al3+ or Cr3+. Further, An− is CO32−. Furthermore, the term x lies within a range of 0.19 to 0.34 (0.19≤x≤0.34), and y is 0 or a positive integer.-
4.
公开(公告)号:US11970665B2
公开(公告)日:2024-04-30
申请号:US17751497
申请日:2022-05-23
IPC分类号: C10G45/08 , B01J21/04 , B01J23/75 , B01J23/88 , B01J35/00 , B01J35/02 , B01J35/10 , B01J37/02 , C10G45/14
CPC分类号: C10G45/08 , B01J21/04 , B01J23/75 , B01J23/88 , B01J35/006 , B01J35/023 , B01J35/1019 , B01J35/1038 , B01J35/1061 , B01J37/0207 , C10G45/14 , C10G2300/1055 , C10G2300/202 , C10G2300/70 , C10G2400/26
摘要: Carbon nanofiber doped alumina (Al—CNF) supported MoCo catalysts in hydrodesulfurization (HDS), and/or boron doping, e.g., up to 5 wt % of total catalyst weight, can improve catalytic efficiency. Al—CNF-supported MoCo catalysts, (Al—CNF—MoCo), can reduce the sulfur concentration in fuel, esp. liquid fuel, to below the required limit in a 6 h reaction time. Thus, Al—CNF—MoCo has a higher catalytic activity than Al-MoCo, which may be explained by higher mesoporous surface area and better dispersion of MoCo metals on the AlCNF support relative to alumina support. The BET surface area of Al-MoCo may be 75% less than Al—CNF—MoCo, e.g., 166 vs. 200 m2/g. SEM images indicate that the catalyst nanoparticles can be evenly distributed on the surface of the CNF. The surface area of the AlMoCoB5% may be 206 m2/g, which is higher than AlMoCoB0% and AlMoCoB2%, and AlMoCoB5% has the highest HDS activity, removing more than 98% sulfur and below allowed levels.
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公开(公告)号:US20240093100A1
公开(公告)日:2024-03-21
申请号:US18271369
申请日:2022-01-24
IPC分类号: C10G45/64 , B01J21/04 , B01J29/74 , B01J29/80 , B01J35/00 , B01J35/02 , B01J35/08 , B01J35/10 , B01J37/00 , B01J37/02 , B01J37/08 , B01J37/10 , B01J37/18
CPC分类号: C10G45/64 , B01J21/04 , B01J29/7461 , B01J29/7469 , B01J29/80 , B01J35/0006 , B01J35/0066 , B01J35/026 , B01J35/08 , B01J35/1019 , B01J35/1057 , B01J37/0009 , B01J37/0201 , B01J37/08 , B01J37/10 , B01J37/18 , B01J2229/16 , B01J2229/186 , B01J2229/36
摘要: Provided herein are catalysts for dewaxing of a feedstock, the catalyst comprising between about 40 wt. % and about 99.9 wt. % zeolite, between about 0 wt. % and about 40 wt. % binder and at least about 0.1 wt. % noble metal, as well as catalyst systems, methods and products produced using the catalysts. The zeolite having a crystal comprising a largest included sphere less than or equal to about 7.5 angstroms, a largest diffusing sphere greater than or equal to about 5.0 angstroms, and a silica to alumina ratio greater than or equal to about 100:1. The catalyst having a temperature-programmed ammonia desorption (“TPAD”) of less than about 0.25 mmol/g.
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公开(公告)号:US20240082831A1
公开(公告)日:2024-03-14
申请号:US18456557
申请日:2023-08-28
IPC分类号: B01J31/18 , B01J21/04 , B01J21/08 , B01J31/22 , B01J35/02 , B01J35/10 , B01J37/02 , B01J37/04
CPC分类号: B01J31/1815 , B01J21/04 , B01J21/08 , B01J31/22 , B01J35/023 , B01J35/026 , B01J35/1014 , B01J35/1019 , B01J35/1023 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J37/0203 , B01J37/04 , B01J2531/842 , B01J2531/845
摘要: Supported catalysts contain a transition metal compound impregnated on or bound to a solid support, and the transition metal is iron, cobalt, or manganese. The solid support is an inorganic solid oxide or a chemically-treated solid oxide. The transition metal compound is prepared by reacting a transition metal halide containing a ligand with an alkylating agent in a suitable reaction medium at a temperature of −70 to 15° C., prior to impregnating onto the solid support.
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公开(公告)号:US20240058795A1
公开(公告)日:2024-02-22
申请号:US18259785
申请日:2021-11-29
发明人: Young Hee LEE , Woo Jin PARK , Bong Sik JEON , Eui Geun JUNG
IPC分类号: B01J23/83 , B01J35/10 , B01J35/02 , B01J37/00 , B01J37/03 , B01J37/06 , B01J37/16 , C10G45/06 , B01J35/00 , C10G45/48 , C10G45/36
CPC分类号: B01J23/83 , B01J35/1019 , B01J35/1038 , B01J35/1061 , B01J35/023 , B01J37/009 , B01J37/035 , B01J37/06 , B01J37/16 , C10G45/06 , B01J35/0013 , C10G45/48 , C10G45/36 , C10G2300/705
摘要: The present invention relates to a hydrogenation catalyst with improved sulfur resistance and a method for producing the same. More specifically, the present invention comprises cerium and copper to enhance resistance to sulfur, that is, resistance to sulfur poisoning, thereby extending the lifespan and improving activity of the catalyst, which is be used in the hydrogenation of petroleum resin.
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公开(公告)号:US11905471B2
公开(公告)日:2024-02-20
申请号:US17414882
申请日:2019-12-13
IPC分类号: C10G49/04 , B01J23/883 , B01J35/10 , B01J37/02 , B01J37/08
CPC分类号: C10G49/04 , B01J23/883 , B01J35/1009 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J37/0205 , B01J37/088
摘要: The present invention relates to a hydrogenolysis process wherein a hydrocarbon-based feedstock comprising aromatic compounds having at least 8 carbon atoms is treated by means of a hydrogen feed and in the presence of a catalyst, in order to convert C2+ alkyl chains of said aromatic compounds into methyl groups and to produce a hydrogenolysis effluent enriched in methyl-substituted aromatic compounds, wherein the catalyst comprises a support, comprising at least one refractory oxide, and an active phase comprising nickel and molybdenum, wherein: the nickel content being between 0.1 and 25% by weight relative to the total weight of the catalyst; the molybdenum content being between 0.1 and 20% by weight relative to the total weight of the catalyst; and the catalyst comprising a molar ratio of molybdenum to nickel of between 0.2 and 0.9. The present invention also relates to said catalyst and to the process for preparing said catalyst.
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9.
公开(公告)号:US20240042422A1
公开(公告)日:2024-02-08
申请号:US18245034
申请日:2021-09-29
IPC分类号: B01J27/232 , C07C45/45 , B01J35/10
CPC分类号: B01J27/232 , C07C45/45 , B01J35/1014 , B01J35/1019
摘要: The present invention relates to a method for performing a condensation reaction by heterogeneous catalysis using a surface-reacted calcium carbonate catalyst and the use of a dry surface-reacted calcium carbonate as a catalyst. The condensation reaction involves reacting a first substrate comprising a C═O double bond and a second substrate comprising an activated hydrogen to obtain a reaction mixture comprising one or more condensation products and one or more condensation byproducts.
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公开(公告)号:US11883808B2
公开(公告)日:2024-01-30
申请号:US17346518
申请日:2021-06-14
发明人: Di-Jia Liu , Lina Chong
IPC分类号: B01J31/16 , B01J35/10 , C08L23/08 , C08L33/12 , C08L33/20 , C08L39/06 , C08L75/04 , C08L77/00 , B01J37/34 , B01J37/08 , B01J23/34 , B01J21/18 , B01J23/20 , B01J37/04 , B01J23/28 , B01J23/75 , B01J23/10 , B01J27/24 , B01J23/83 , B01J23/887 , B01J35/00 , B01J35/06 , B01J23/745 , B82Y40/00 , B82Y30/00 , C08L77/06 , B01J31/18
CPC分类号: B01J31/1691 , B01J21/185 , B01J23/10 , B01J23/20 , B01J23/28 , B01J23/34 , B01J23/745 , B01J23/75 , B01J23/83 , B01J23/8871 , B01J27/24 , B01J35/002 , B01J35/0033 , B01J35/06 , B01J35/1014 , B01J35/1019 , B01J35/1023 , B01J35/1057 , B01J35/1061 , B01J37/04 , B01J37/084 , B01J37/348 , C08L23/0853 , C08L33/12 , C08L33/20 , C08L39/06 , C08L75/04 , C08L77/00 , B01J31/181 , B01J2531/11 , B01J2531/36 , B01J2531/37 , B01J2531/38 , B01J2531/48 , B01J2531/57 , B01J2531/58 , B01J2531/64 , B01J2531/66 , B01J2531/72 , B01J2531/842 , B01J2531/845 , B01J2531/847 , B82Y30/00 , B82Y40/00 , C08L77/06
摘要: A nanofibrous catalyst for in the electrolyzer and methods of making the catalyst. The catalysts are composed of highly porous transition metal carbonitrides, metal oxides or perovskites derived from the metal-organic frameworks and integrated into a 3D porous nano-network electrode architecture. The catalysts are low-cost, highly active toward OER, with excellent conductivity yet resistant to the oxidation under high potential operable under both acidic and alkaline environments.
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