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公开(公告)号：US12128388B2
公开(公告)日：2024-10-29
申请号：US17437524
申请日：2019-03-13
CPC分类号： B01J23/94 , B01J38/02 , B01J38/04 , B01J38/20 , C01B3/40 , C01B2203/0238 , C01B2203/1058 , C01B2203/141
摘要： A method to regenerate and reactivate catalysts used for a carbon and syngas production reaction including a DRM or CARGEN reaction is developed. Carbon dioxide (CO2) is used as the regeneration and activation media. This method of a single step regeneration and activation using CO2 is more effective than the existing conventional two-step process that includes separate reduction and oxidation steps. This method produces pure carbon monoxide (CO) as a byproduct from the regeneration process by utilizing CO2 and carbon.
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公开(公告)号：US11918989B2
公开(公告)日：2024-03-05
申请号：US17547330
申请日：2021-12-10
摘要： The invention provides a process for regenerating a catalyst used for the hydrogenation of an aromatic species, consisting of several steps. First the system is purged with nitrogen, then air is metered in stepwise, and the addition of nitrogen is subsequently ended until only air is present.
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公开(公告)号：US20180280964A1
公开(公告)日：2018-10-04
申请号：US15997188
申请日：2018-06-04
申请人： UOP LLC
发明人： Paolo Palmas
CPC分类号： B01J38/30 , B01J8/1818 , B01J8/1827 , B01J8/26 , B01J8/28 , B01J38/04 , B01J38/34 , B01J38/36 , B01J2208/00902 , B01J2208/00911 , C10G11/182 , C10G11/22 , F23C10/01 , F23C10/18
摘要： A process for combusting coke from catalyst in partial burn mode is disclosed. The partial burn regenerator runs deprived of oxygen such that the flue gas will contain a fair amount of carbon monoxide. The oxygen present in the flue gas can burn in the bed before reaching the dilute phase. The catalyst distributor is positioned in the upper chamber of the regeneration vessel for discharging the catalyst.
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公开(公告)号：US20180169627A1
公开(公告)日：2018-06-21
申请号：US15843511
申请日：2017-12-15
发明人： Ji MIN , An BOWEN , Brian CLANCY-JUNDT , William M. CROSS , Daniel Travis SHAY , Cai Tian XI
IPC分类号： B01J23/83 , C07C2/24 , B01J23/94 , B01J38/04 , B01J37/12 , B01J37/16 , B01J37/08 , B01J37/02
CPC分类号： B01J23/83 , B01J21/04 , B01J21/063 , B01J23/002 , B01J23/94 , B01J37/0201 , B01J37/0209 , B01J37/0236 , B01J37/08 , B01J37/086 , B01J37/088 , B01J37/12 , B01J37/16 , B01J38/02 , B01J38/04 , B01J2523/00 , C07C2/24 , C07C2521/04 , C07C2521/06 , C07C2523/83 , Y02P20/127 , Y02P20/52 , C07C11/08 , C07C11/09 , C07C11/107 , B01J2523/31 , B01J2523/36 , B01J2523/47 , B01J2523/847
摘要： Described herein are materials and methods for improved catalytic oligomerization of an ethylene monomer and/or propylene monomer. The present disclosure teaches oligomerizing the ethylene monomer or propylene monomer to produce oligomers. Also described is a heterogeneous catalyst comprising sulfate modified nickel on titanium modified alumina and a surface modification with yttrium (Y) suitable for use in the disclosed oligomerization.
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公开(公告)号：US20180141034A1
公开(公告)日：2018-05-24
申请号：US15573128
申请日：2016-04-01
申请人： GEESCO CO., LTD.
发明人： Sung-Ho HONG , Tae-Yong SHIN , Jeong Hwa LEE , Sang Duck SEO
IPC分类号： B01J38/06
CPC分类号： B01J38/06 , B01D53/8628 , B01D53/96 , B01D2255/20707 , B01D2255/20723 , B01D2255/20776 , B01D2257/302 , B01D2257/404 , B01J35/04 , B01J38/04
摘要： The present invention relates to a method for regenerating a catalyst that can effectively remove a poison bound to a catalyst without chemical injury while minimizing the loss of catalytically active components through a process with improved efficiency, whereby the regenerated catalyst may exhibit excellent denitrification performance.
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公开(公告)号：US09914700B2
公开(公告)日：2018-03-13
申请号：US15320898
申请日：2015-06-25
发明人： William J. Tenn, III
IPC分类号： C07C253/34 , B01D3/12 , B01J31/18 , B01J31/40 , B01J38/56 , B01J38/04 , B01D11/04 , B01D11/00
CPC分类号： C07C253/34 , B01D3/12 , B01D11/0446 , B01D11/0461 , B01D11/0492 , B01D2011/002 , B01J31/185 , B01J31/1865 , B01J31/40 , B01J31/4053 , B01J38/04 , B01J38/56 , B01J2231/322 , B01J2531/002 , B01J2531/847 , Y02P20/582 , C07C255/04 , C07C255/07
摘要： Disclosed herein are methods for recovering phosphorus-containing ligand from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the phosphorus-containing ligand.
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公开(公告)号：US20170349511A1
公开(公告)日：2017-12-07
申请号：US15538679
申请日：2015-12-02
发明人： Masami NISHIUMI , Daisuke KARUBE
CPC分类号： C07C17/38 , B01J23/26 , B01J38/02 , B01J38/04 , C07B61/00 , C07C17/20 , C07C21/18 , Y02P20/584
摘要： Provided is a method for easily and safely removing, from a reactor, a catalyst used in a reaction that is performed using hydrogen fluoride in the presence of the catalyst. In a reaction performed in a reactor containing at least hydrogen fluoride and a catalyst, the catalyst is removed through a process comprising a heating step of performing heat-treatment so that the ambient temperature of the reactor is 80° C. or more after completion of the reaction, and a purge step of flowing inert gas into the reactor to discharge the hydrogen fluoride to the outside of the reactor after completion of the reaction.
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公开(公告)号：US20170297979A1
公开(公告)日：2017-10-19
申请号：US15509902
申请日：2015-09-09
发明人： Zeeshan Nawaz
CPC分类号： C07C5/3337 , B01J8/062 , B01J8/065 , B01J8/067 , B01J8/087 , B01J23/26 , B01J23/42 , B01J23/626 , B01J23/92 , B01J23/96 , B01J35/0006 , B01J38/04 , B01J38/06 , B01J38/10 , B01J38/12 , B01J38/16 , B01J38/38 , B01J2208/00194 , B01J2208/06 , B01J2208/065 , C07C5/321 , C07C5/3332 , C07C5/3335 , C07C5/48 , C07C2523/26 , C07C2523/42 , F23C2900/05081 , F27B1/005 , F27B1/08 , F27B1/10 , F27D99/0033 , Y02P20/584 , C07C11/02
摘要： Systems for dehydrogenating an alkane are provided. An exemplary system includes a furnace and further includes alkane heating chambers, regeneration mixture heating chambers, and two groups of reaction chambers, all located within the furnace. The alkane heating chambers and regeneration mixture heating chambers can preheat an alkane feed and a regeneration mixture feed, respectively. The two groups of reaction chambers can be switchably coupled to an alkane feed and a regeneration mixture feed such that an alkane can flow through one group of reaction chambers while a regeneration mixture flows through the other group of reaction chambers. Processes for dehydrogenating an alkane are also provided.
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公开(公告)号：US20170267607A1
公开(公告)日：2017-09-21
申请号：US15528971
申请日：2015-11-25
IPC分类号： C07C5/333
CPC分类号： C07C5/3332 , B01J23/26 , B01J23/92 , B01J38/04 , C07C2523/26 , C09K5/16 , Y02P20/146 , Y02P20/584 , C07C11/02 , C07C11/09
摘要： A process of catalytically dehydrogenating an alkane to an alkene, using Cr2O3 as a catalyst, where the catalyst is reduced concurrently with the dehydrogenation by using CO as a reducing gas. In reducing the catalyst with CO, CO2 is produced, which may be reacted with H2 produced by the dehydrogenation, to form CO and H2O by the reverse water-gas shift reaction. A Cu O heat-releasing material may be included with the catalyst in the reactor. The CO reducing gas reduces CuO to form Cu and CO2, releasing heat. The CO2 produced by reducing the Cu O may also be reacted with H2 produced by the dehydrogenation, to form CO and H2O by the reverse water-gas shift reaction.
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公开(公告)号：US09657665B2
公开(公告)日：2017-05-23
申请号：US14189339
申请日：2014-02-25
申请人： Cummins Inc.
IPC分类号： F01N3/00 , F02D41/02 , F01N3/08 , F01N3/10 , B01J38/06 , B01J38/08 , B01J38/56 , B01J38/04 , F01N11/00 , F01N3/20
CPC分类号： F02D41/0235 , B01J38/04 , B01J38/06 , B01J38/08 , B01J38/56 , F01N3/0885 , F01N3/106 , F01N3/2033 , F01N3/2066 , F01N3/208 , F01N11/00 , F01N2550/02 , F01N2610/02 , F01N2610/03 , F01N2610/146 , F01N2900/1404 , Y02T10/24
摘要： System, apparatus, and methods are disclosed for treating a reduction catalyst that has been exposed to an amount of sulfur. The treating of the reduction catalyst includes providing a fluid stream at a position upstream of the reduction catalyst. The fluid stream includes a temperature and a reductant amount, and the reductant amount includes an amount of urea, ammonia, or hydrocarbons.
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