公开(公告)号：US20210395171A1

公开(公告)日：2021-12-23

申请号：US17287758

申请日：2019-11-01

申请人： Trustees of Tufts College

发明人： Prashant Deshlahra ,  Leelavathi Annamalai

IPC分类号： C07C5/48 ,  C07D301/08 ,  B01J23/22 ,  B01J21/08

摘要： Disclosed are gas-phase ODH and OCP processes for converting alkanes (e.g., C2H6 and C3H8) to alkenes (e.g., C2H4 and C3H6) or oxygenates (e.g., methanol, ethanol, isopropanol, or propylene oxide) or converting alkenes (e.g., ethylene and propene) and oxygenates (e.g., methanol, ethanol, isopropanol or propylene oxide) to longer carbon-chain alkenes or longer carbon-chain alkanes with or without solid catalysts.

公开(公告)号：US20210387931A1

公开(公告)日：2021-12-16

申请号：US17289452

申请日：2019-10-31

申请人： SHELL OIL COMPANY

发明人： Maria SAN ROMAN MACIA ,  Pejman PAJAND ,  Ivana Daniela ESPOSITO CASSIBBA

IPC分类号： C07C7/00 ,  C07C5/48 ,  C07C7/04 ,  B01D3/14

摘要： The invention relates to a process for the production of ethylene by oxidative dehydrogenation of ethane, comprising: a) subjecting a stream comprising ethane to oxidative dehydrogenation conditions, resulting in a stream comprising ethylene, unconverted ethane and light components; b) subjecting ethylene, unconverted ethane and light components from the stream resulting from step a) to distillation, resulting in a stream comprising ethylene and light components and a stream comprising unconverted ethane; c) optionally recycling unconverted ethane from the stream comprising unconverted ethane resulting from step b) to step a); and d) subjecting ethylene and light components from the stream comprising ethylene and light components resulting from step b) to distillation at a top column pressure which is higher than the top column pressure in step b), resulting in a stream comprising light components and a stream comprising ethylene.

公开(公告)号：US20210371357A1

公开(公告)日：2021-12-02

申请号：US17272741

申请日：2019-08-15

申请人： Dow Global Technologies LLC

发明人： Lin Luo ,  Matthew T. Pretz

IPC分类号： C07C5/48 ,  B01J8/18 ,  B01J8/26 ,  B01J8/00

摘要： According to one or more embodiments disclosed herein, methods for operating dehydrogenation processes during non-normal operating conditions, such as at start-up, shut-down, system recycle, or unit trip, are described. The methods may include contacting a feed stream with a catalyst in a reactor portion of a reactor system to form a reactor effluent stream, separating at least a portion of the reactor effluent stream from the catalyst, passing the catalyst to a catalyst processing portion and processing the catalyst, wherein processing the catalyst comprises contacting the catalyst with oxygen, passing the catalyst from the processing portion to the reactor portion, wherein the catalyst exiting the processing portion comprises at least 0.001 wt. % oxygen, and contacting the catalyst with supplemental hydrogen, the contacting removing at least a portion of the oxygen from the catalyst by a combustion reaction.

公开(公告)号：US20210230093A1

公开(公告)日：2021-07-29

申请号：US15734497

申请日：2019-06-19

申请人： LINDE GmbH

发明人： Mathieu ZELLHUBER ,  Martin SCHUBERT ,  Andreas MEISWINKEL ,  Florian WINKLER ,  Desislava TOTA ,  Hans-Jörg ZANDER

IPC分类号： C07C51/215 ,  C07C5/48 ,  B01J8/04

摘要： The invention relates to a method for producing one or more olefins and one or more carboxylic acids, in which one or more paraffins is or are subjected to an oxidative dehydrogenation. For the oxidative dehydrogenation, a reactor (10) having a plurality of reaction zones (11, 12, 13) is used, a gas mixture comprising the one or more paraffins is successively passed through the reaction zones (11, 12, 13), and at least two of the reaction zones (11, 12, 13) are subject to varying temperature influences. The invention also relates to a corresponding system (100).

公开(公告)号：US20210187489A1

公开(公告)日：2021-06-24

申请号：US17177901

申请日：2021-02-17

申请人： University of Florida Research Foundation, Inc.

发明人： Yunwei Charles CAO

IPC分类号： B01J35/00 ,  B01J23/02 ,  B01J21/08 ,  B01J23/755 ,  B01J23/745 ,  B01J23/34 ,  B01J23/30 ,  B01J23/10 ,  B01J35/02 ,  B01J37/14 ,  B01J37/02 ,  B01J37/00 ,  C07C2/84 ,  C07C5/48 ,  B33Y80/00

摘要： The disclosure relates to a single-atom-based catalyst system with total-length control of single-atom catalytic sites. The single-atom-based catalyst system comprises at least one catalyst structure comprising a first assembly of a plurality of single-atom-catalyst superparticles. The single-atom-catalyst superparticles comprise a second assembly of a plurality of single-atom-catalyst nanoparticles. The single-atom-based catalyst system has controlled porosity and spatial distribution of active single-atom catalysts from the atomic scale to the macroscopic scale. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

公开(公告)号：US20210060537A1

公开(公告)日：2021-03-04

申请号：US16963639

申请日：2019-11-19

申请人： LG CHEM, LTD.

发明人： Ye Seul HWANG ,  Dong Hyun KO ,  Joohyuck LEE ,  Myungji SUH

IPC分类号： B01J23/889 ,  B01J23/80 ,  B01J23/86 ,  B01J21/12 ,  B01J35/08 ,  B01J37/02 ,  C07C5/48

摘要： Provided is a catalyst for an oxidative dehydrogenation reaction that comprises: a porous support; a core portion supported on the porous support and containing a first zinc ferrite-based catalyst; and a shell portion supported on the core portion and containing a second zinc ferrite-based catalyst, in which the first zinc ferrite-based catalyst and the second zinc ferrite-based catalyst are different from each other.

公开(公告)号：US20210031176A1

公开(公告)日：2021-02-04

申请号：US16967356

申请日：2019-02-04

申请人： SMH Co., Ltd

发明人： Kongkiat SURIYE ,  Wuttithep JAREEWATCHARA ,  Atsadawuth SIANGSAI

IPC分类号： B01J35/00 ,  B01J23/62 ,  B01J23/02 ,  B01J29/16 ,  B01J23/30 ,  B01J21/08 ,  C07C5/48 ,  C07C6/04

摘要： The present invention relates to catalysts, catalyst systems, and processes for the production of valuable light olefins, such as ethylene, from paraffinic hydrocarbons, such as propane, through dehydrogenation and metathesis. The contacting state between dehydrogenation and metathesis catalysts can advantageously be manipulated using an inert or relatively inert coating or outer shell that provides a degree of physical separation between catalytically active centers or inner cores. This has been discovered to significantly increase olefin selectivity (i.e., reduce undesired hydrogenation/hydrogenolysis side reactions) without an appreciable paraffin conversion deficit, such that the overall yield of desired olefinic hydrocarbons such as ethylene is thereby significantly increased.

公开(公告)号：US20210024439A1

公开(公告)日：2021-01-28

申请号：US17060506

申请日：2020-10-01

申请人： Lummus Technology LLC

发明人： Guido Radaelli ,  Robert Bridges ,  Humera A. Rafique ,  Suchia Duggal ,  Srinivas Vuddagiri ,  Joel Cizeron ,  Jarod McCormick ,  Bipinkumar Patel ,  Satish Lakhapatri

IPC分类号： C07C2/84 ,  C07C29/48 ,  C01B3/38 ,  C07C4/02 ,  C07C29/151 ,  C25B15/08 ,  C25B1/04 ,  C07C5/48 ,  C25B1/26

摘要： The present disclosure provides natural gas and petrochemical processing systems including oxidative coupling of methane reactor systems that integrate process inputs and outputs to cooperatively utilize different inputs and outputs of the various systems in the production of higher hydrocarbons from natural gas and other hydrocarbon feedstocks.

公开(公告)号：US10815169B2

公开(公告)日：2020-10-27

申请号：US16074844

申请日：2017-02-02

申请人： SHELL OIL COMPANY

发明人： Ronald Jan Schoonebeek ,  Alouisius Nicolaas Renée Bos ,  Guus Van Rossum ,  Michael Johannes Franciscus Maria Verhaak

IPC分类号： C07C5/48 ,  C07C7/148 ,  B01J23/68 ,  B01J27/057 ,  C07D301/10 ,  C10G50/00 ,  B01J37/06 ,  C10L3/10 ,  B01J23/00 ,  B01J37/03 ,  B01J37/02

摘要： The invention relates to a process for conversion of a stream comprising methane and ethane, comprising converting ethane from a stream comprising methane and ethane, in which stream the volume ratio of methane to ethane is of from 0.005:1 to 100:1, to a product having a vapor pressure at 0° C. lower than 1 atmosphere, resulting in a stream comprising methane and the product having a vapor pressure at 0° C. lower than 1 atmosphere; separating the product having a vapor pressure at 0° C. lower than 1 atmosphere from the stream comprising methane and the product having a vapor pressure at 0° C. lower than 1 atmosphere, resulting in a stream comprising methane; and chemically converting methane from the stream comprising methane, or feeding methane from the stream comprising methane to a network that provides methane as energy source, or liquefying methane from the stream comprising methane.

公开(公告)号：US20200325096A1

公开(公告)日：2020-10-15

申请号：US16071856

申请日：2017-03-01

申请人： ExxonMobil Chemical Patents Inc.

发明人： Jihad M. Dakka ,  Bryan A Patel ,  Michael Salciccioli ,  Stephen Zushma

IPC分类号： C07C51/265 ,  C07C2/84 ,  C07C5/48 ,  C07C51/43 ,  C07C51/44 ,  C07C51/353 ,  B01J29/74 ,  B01J23/44 ,  B01J21/04 ,  B01J23/62 ,  B01J21/08

摘要： A process for oxidizing methyl-substituted biphenyl compounds comprises contacting a mixture comprising isomers of at least one methyl-substituted biphenyl compound with a source of oxygen, wherein the mixture comprises at least 20 wt % of isomer(s) having a methyl group at a 2-position or a 3-position on at least one benzene ring and at least 50 wt % of isomer(s) having a methyl group at a 4-position on at least one benzene ring, wherein said percentages are based on the total weight of the at least one methylbiphenyl compound in the mixture.