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公开(公告)号：US12121887B2
公开(公告)日：2024-10-22
申请号：US16976991
申请日：2019-02-22
Applicant: SABIC Global Technologies B.V.
Inventor： Biju Maippan Devassy , Rekha Mahadevaiah , Prashant Kumar Raichur Krishtacharya , Vinod Sankaran Nair
CPC classification number: B01J37/0205 , B01J23/26 , B01J37/0236 , B01J37/12 , B01J37/16 , C07C5/322 , B01J21/04 , C07C11/09
Abstract: A method for the dehydrogenation of lower alkanes is disclosed. The method employs a chromium-alumina dehydrogenation catalyst with high chromium content supported on eta-alumina. The catalyst contains greater than 25 percent by weight chromium in the form of chromium (III) oxide, and exhibits extended stability over traditional alkane dehydrogenation catalysts.
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2.发明授权公开(公告)号：US12037313B2
公开(公告)日：2024-07-16
申请号：US17292261
申请日：2019-11-20
Applicant: SABIC Global Technologies B.V.
Inventor： Vijay Dinkar Bodas , Guillermo Leal , Mohammed Bismillah Ansari
CPC classification number: C07C41/06 , C07C4/02 , C07C5/05 , C07C5/32 , C07C5/42 , C07C7/04 , C07C29/04 , C07C6/04 , C07C7/04 , C07C9/10 , C07C7/04 , C07C9/12 , C07C5/05 , C07C11/08 , C07C41/06 , C07C43/046 , C07C29/04 , C07C31/12 , C07C7/04 , C07C11/08 , C07C5/32 , C07C11/04 , C07C5/32 , C07C11/09 , C07C5/42 , C07C11/09 , C07C4/02 , C07C11/04
Abstract: A process for producing ethylene and at least one of butanol and an alkyl tert-butyl ether from field butane includes separating the field butane into an n-butane stream and an isobutane stream; cracking the n-butane stream to obtain a cracked product stream comprising n-butane, 1-butene, 2-butene, butadienes, or a combination comprising at least one of the foregoing; and at least one of the following: (1) separating the cracked product stream to obtain a butane stream and a butene stream, and reacting the butene stream with water to obtain a fuel additive comprising butanol, and (2) dehydrogenating the isobutane stream in a dehydrogenation unit to form an isobutene stream and reacting the isobutene stream with an aliphatic alcohol to produce an alkyl tert-butyl ether.
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3.发明授权公开(公告)号：US11738333B2
公开(公告)日：2023-08-29
申请号：US16373633
申请日：2019-04-03
Applicant: Manhua Lin , Waisi Eng
Inventor： Manhua Lin , Waisi Eng
IPC: C07C45/38 , C07C51/235 , C07C1/24 , C07C67/40 , B01J23/888 , B01J23/28 , B01J35/02 , B01J37/00 , B01J23/00 , B01J23/30 , B01J23/68 , B01J37/08
CPC classification number: B01J23/8885 , B01J23/002 , B01J23/28 , B01J23/30 , B01J23/687 , B01J23/888 , B01J35/023 , B01J37/0036 , B01J37/08 , C07C1/24 , C07C45/38 , C07C51/235 , C07C67/40 , B01J2523/00 , C07C2523/10 , C07C2523/18 , C07C2523/22 , C07C2523/28 , C07C2523/30 , C07C2523/745 , C07C2523/888 , Y02P20/52 , C07C51/235 , C07C57/04 , C07C45/38 , C07C47/02 , C07C1/24 , C07C11/09 , C07C1/24 , C07C11/06 , B01J2523/00 , B01J2523/53 , B01J2523/55 , B01J2523/68
Abstract: Disclosed is a catalyst system, its methods of preparation and its use for producing, among others, alkenes and/or saturated or unsaturated oxygenates and, which include at least one of an aldehyde and an acid (such as propyl aldehyde, acrolein, acrylic acid, isobutyl aldehyde, methacrolein, methacrylic acid), comprising subjecting the corresponding an alcohol or a diol selected from the group consisting of propanol, propanediol and isobutanol that is derivable from biomass, to a vapor phase process over the catalytic system described herein in the presence of a gas mixture of oxygen, air or nitrogen and/or other suitable diluting gas. In the case where one of 1-propanol, or 1,2-propanediol or 1,3-propanediol or a mixture thereof is subjected to a vapor phase catalytic process over the said catalytic system in the presence of air or oxygen, and a co-fed gas, such as nitrogen or other diluting gas, the product is at least one of propylene, propyl aldehyde, acrolein and acrylic acid. In the case where isobutanol is subjected to such a process, the product is at least one of isobutylene, isobutyl aldehyde, methacrolein and methacrylic acid. The catalyst system comprises a single catalytic zone or multi-catalytic zones, in each of which the composition of the co-feed and other reaction parameter can be independently controlled.
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公开(公告)号：US20180223266A1
公开(公告)日：2018-08-09
申请号：US15748034
申请日：2016-07-27
Applicant: Global Bioenergies , Scientist of Fortune, S.A.
Inventor： Sabine Mazaleyrat , Jean-Baptiste Barbaroux , Marc Delcourt , Francois Stricher , Philippe Marlière
Abstract: Described are HIV kinase variants showing an improved activity in converting 3-hydroxyisovalerate (HIV) into 3-phosphonoxyisovalerate (PIV), methods for the production of PIV using such enzyme variants as well as methods for the production isobutene in a subsequent reaction.
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公开(公告)号：US10017431B2
公开(公告)日：2018-07-10
申请号：US14565913
申请日：2014-12-10
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Robert John Brummer
CPC classification number: C07C5/333 , B01J8/02 , B01J2208/00008 , B01J2208/021 , C07C11/06 , C07C11/09 , C07C11/08 , C07C11/167 , C07C11/18 , C07C11/02 , C07C11/10 , C07C11/173
Abstract: Processes and systems for producing olefins, including: dehydrogenating a first n-alkane to produce a first effluent; and dehydrogenating at least one of a first isoalkane or a second n-alkane to produce a second effluent. The first and second effluents may be compressed and fed to a common separation train to separate the effluents into two or more fractions. In some embodiments, each of the first and second dehydrogenation reaction zones may include two reactors, one reactor in each of the reaction zones operating in a dehydrogenation cycle, one operating in a regeneration cycle, and one operating in a purge or evacuation/reduction cycle. Operation of the reactors in the dehydrogenation cycle is staggered, such that the purge cycle, regeneration cycle, or evacuation/reduction cycle of the reactors may not overlap.
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Patent Agency Ranking
公开(公告)号：US09919283B2
公开(公告)日：2018-03-20
申请号：US14836669
申请日：2015-08-26
Applicant: ASAHI KASEI CHEMICALS CORPORATION
Inventor： Tatsuo Yamaguchi , Hiroyuki Noda , Toru Watanabe , Shunya Kirino
IPC: B01J19/18 , C07C29/04 , B01J21/04 , B01J23/04 , B01J27/188 , B01J35/10 , C07C1/24 , B01D3/00 , B01J19/00
CPC classification number: B01J19/18 , B01D3/009 , B01J19/0066 , B01J21/04 , B01J23/04 , B01J27/188 , B01J35/10 , B01J35/1019 , B01J35/1038 , B01J35/108 , B01J2219/185 , C07C1/24 , C07C29/04 , C07C2521/04 , C07C2523/04 , Y02P20/582 , C07C11/09 , C07C31/12
Abstract: An object of the present invention is to provide, for the production of isobutene, a high-yielding, highly-selective, and long-term stable production process of isobutene from TBA. With respect to the production of TBA, an object of the present invention is to provide a TBA production process in which, through long-term stable maintenance of a high reaction activity, long-term continuous operation is enabled and the productivity is improved. The present invention discloses a process for producing isobutene that employs a dehydration temperature of from 200 to 450° C. in use of an alumina catalyst that contains a Na content of 0.6% by weight or less in terms of NaO2 and a Na content of 0.4% by weight in terms of NaO2, and has a specific surface area of from 200 to 600 m2/g.
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公开(公告)号：US20180050970A1
公开(公告)日：2018-02-22
申请号：US15557678
申请日：2016-02-16
Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
Inventor： Nobuhiro KIMURA , Junji WAKABAYASHI , Sosuke HIGUCHI
CPC classification number: C07C5/25 , B01J23/31 , B01J23/681 , B01J23/686 , B01J23/8872 , B01J29/123 , B01J29/143 , B01J35/0006 , B01J2523/00 , C07B61/00 , C07C5/2556 , C07C5/48 , C07C7/04 , C07C11/08 , C07C11/16 , C07C2521/04 , C07C2521/08 , C07C2523/04 , C07C2523/28 , C07C2523/31 , C07C2523/44 , C07C2523/745 , C07C2523/75 , C07C2523/755 , C07C2523/887 , C07C2529/12 , C07C2529/14 , C07C11/09 , C07C11/167 , B01J2523/12 , B01J2523/13 , B01J2523/41 , B01J2523/54 , B01J2523/68 , B01J2523/845 , B01J2523/847
Abstract: A method for producing diene comprises a step 1 of obtaining a straight chain internal olefin by removing a branched olefin from a raw material including at least the branched olefin and a straight chain olefin; and a step 2 of producing diene from the internal olefin by oxidative dehydrogenation using a first catalyst and a second catalyst, and the first catalyst has a complex oxide including bismuth, molybdenum and oxygen, and the second catalyst includes at least one selected from the group consisting of silica and alumina.
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公开(公告)号：US20170369399A1
公开(公告)日：2017-12-28
申请号：US15540136
申请日：2015-12-29
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： YongMan Choi , Ramsey Bunama , Khalid M. El-Yahyaoui
CPC classification number: C07C5/3332 , C07C11/02 , C07C11/09 , C07C2521/04 , C07C2521/06 , C07C2523/26 , Y02P20/146 , Y02P20/584
Abstract: A process of catalytically dehydrogenating an alkane to an alkene, using Cr2O3 as a catalyst, where the catalyst is oxidized to CrO3 during the dehydrogenation, and is regenerated by using CO as a reducing gas. In regenerating the catalyst with CO, CO2 is produced, which may be fed to a dehydrogenation reactor with the alkane and 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：US09840453B2
公开(公告)日：2017-12-12
申请号：US15322492
申请日：2015-06-26
Applicant: Mitsubishi Chemical Corporation
Inventor： Shuji Akihara , Tatsuya Suzuki , Toshiya Yasukawa , Akio Takeda , Kenichi Miyaki , Ken Ooyachi
CPC classification number: C07C67/08 , C07C1/24 , C07C29/172 , C07C51/21 , C07C51/23 , C07C51/235 , C07C51/252 , C07C2521/04 , C07C11/09 , C07C57/04 , C07C69/54
Abstract: Provided is a method for producing isobutylene with a high selectivity by a dehydration reaction of isobutanol. There are provided a method for producing isobutylene by dehydration of isobutanol, in which the dehydration of isobutanol is performed in a state where at least one of an organic acid and an organic acid ester is present in a reaction system, and methods for producing methacrylic acid and methyl methacrylate from the obtained isobutylene.
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公开(公告)号：US20170253540A1
公开(公告)日：2017-09-07
申请号：US15510255
申请日：2015-09-11
Applicant: Linde Aktiengesellschaft
Inventor： Torben Höfel , Helmut Fritz
CPC classification number: C07C1/20 , C07C4/04 , C07C5/25 , C07C7/04 , C07C41/06 , C10G3/42 , C10G9/36 , C10G29/205 , C10G55/04 , Y02P30/20 , C07C9/10 , C07C9/12 , C07C11/08 , C07C11/09 , C07C43/046
Abstract: A method for preparing hydrocarbons is proposed, which comprises, in a catalysis unit (1) using one or more catalysis feed streams (a) containing oxygenates and/or olefins, producing a catalysis product stream (b) containing n-butane, isobutane, 1-butene, 2-butene, isobutene and hydrocarbons with more than four and/or less than four carbon atoms, and which further comprises producing a steam cracking product stream (s) in a steam cracking unit (2) using one or more steam cracking feed streams (g, n, l, r). It is provided that at least the great majority of the hydrocarbons with more than four and/or less than four carbon atoms and the isobutene is eliminated from the catalysis product stream (b) or a part thereof, whereby a stream (g, n) containing at least 5 percent by mole 1-butene and/or 2-butene is formed, and in that this stream (g, n) containing at least 5 percent by mole 1-butene and/or 2-butene or one or more streams (l, r) derived therefrom is or are used as the steam cracking feed stream or streams (g, n, l, r). The invention also relates to a corresponding apparatus (100, 200, 300).
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