公开(公告)号：US11548839B2

公开(公告)日：2023-01-10

申请号：US17478767

申请日：2021-09-17

申请人： INDIAN OIL CORPORATION LIMITED

发明人： Vineeth Venu Nath ,  Hima Bindu Doosa ,  Ram Mohan Thakur ,  Saravanan Subramani ,  Sahithi Ravuluri ,  Madhusudan Sau ,  Gurpreet Singh Kapur ,  Sankara Sri Venkata Ramakumar

IPC分类号： B01D53/047 ,  C01B3/26 ,  C01B3/56 ,  C07C5/48 ,  C07C7/00 ,  C07C7/04

摘要： As part of an integrated oxidative alkane dehydrogenation and hydrogen generation process, carbon dioxide from Pressure Swing Adsorption (PSA) off gas stream of Hydrogen Generation Unit (HGU), and alkane from any known source are sent to oxidative dehydrogenation (ODH) unit for producing high value olefins, such as ethylene, propylene and butenes. Products formed from ODH reactor are separated and the stream comprising of hydrogen, carbon monoxide and methane are recycled to Shift reactor of HGU unit for enhanced production of hydrogen at PSA.

公开(公告)号：US20220340506A1

公开(公告)日：2022-10-27

申请号：US17639529

申请日：2020-08-26

申请人： JSR Corporation ,  ENEOS Corporation

发明人： Junjie WANG ,  Yuichiro SASAKI ,  Takashi MORI

IPC分类号： C07C11/167 ,  B01J23/887 ,  C07C5/48

摘要： The present invention provides a method for producing 1,3-butadiene that is capable of suppressing generation of reaction by-products. The method includes: a step (A) of to obtain a produced gas containing 1,3-butadiene; a step (B) of cooling the produced gas; and a step (C) of separating the produced gas cooled in the step (B) into molecular oxygen and inert gases, and other gases containing 1,3-butadiene, by selective absorption into an absorption solvent. In the method, in the step (A), the raw material gas and a molecular oxygen-containing gas are supplied to a fixed-bed reactor with a composite oxide catalyst containing molybdenum and bismuth; the molar ratio of molecular oxygen to n-butene in the gases is 1.0 to 2.0; and the molar ratio of water vapor to n-butene in the gases supplied to the fixed-bed reactor is not more than 1.2.

公开(公告)号：US20220332666A1

公开(公告)日：2022-10-20

申请号：US17720081

申请日：2022-04-13

申请人： WISCONSIN ALUMNI RESEARCH FOUNDATION

发明人： Ive Hermans ,  William McDermott ,  Edgard Lebron Rodriguez

IPC分类号： C07C5/48

摘要： Improved methods of oxidative dehydrogenation (ODH) of alkanes and alkylbenzenes to the corresponding olefins are disclosed. The disclosed methods use ozone (O3) to mediate the oxidative dehydrogenation reaction with high selectivity for the desired product, and no heterogeneous ODH catalyst is needed.

公开(公告)号：US20220323943A1

公开(公告)日：2022-10-13

申请号：US17725959

申请日：2022-04-21

申请人： NOVA Chemicals (International) S.A.

发明人： Vasily Simanzhenkov ,  Xiaoliang Gao ,  Marie Barnes ,  David Sullivan ,  Yoonhee Kim ,  Perry de Wit

IPC分类号： B01J27/057 ,  B01J23/22 ,  B01J35/10 ,  B01J37/00 ,  B01J37/04 ,  B01J37/12 ,  C01B19/00 ,  C07C5/48 ,  B01J23/00

摘要： Provided in this disclosure are oxidative dehydrogenation catalysts that include a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20Od wherein d is a number to satisfy the valence of the oxide. The oxidative dehydrogenation catalyst is characterized by having XRD diffraction peaks (2θ degrees) at 22±0.2, 27±0.2, 28.0±0.2, and 28.3±0.1. The disclosure also provides methods of making the catalysts that include wet ball milling.

公开(公告)号：US20220315509A1

公开(公告)日：2022-10-06

申请号：US17640582

申请日：2020-09-16

申请人： NOVA CHEMICALS (INTERNATIONAL) S.A.

发明人： Vasily SIMANZHENKOV ,  Robert LADD ,  Michael KOSELEK ,  Kamal SERHAL ,  Shahin GOODARZNIA ,  Bolaji OLAYIWOLA

IPC分类号： C07C5/48 ,  B01J8/06

摘要： A system and method for oxidative dehydrogenation including a first reactor having a first ODH catalyst to dehydrogenate an alkane to a corresponding alkene at a first temperature and facilitate generation of steam, a second reactor having a second ODH catalyst to dehydrogenate alkane in a first-reactor effluent to the corresponding alkene at a second temperature that may be greater than the first temperature and facilitate generation of steam, and a third reactor having a third ODH catalyst to dehydrogenate alkane in a second-reactor effluent to the corresponding alkene at a third temperature that may be greater than the first temperature or the second temperature and facilitate generation of steam.

公开(公告)号：US11406969B2

公开(公告)日：2022-08-09

申请号：US16094779

申请日：2017-05-24

申请人： ASAHI KASEI KABUSHIKI KAISHA

发明人： Miho Naritomi ,  Kenji Akagishi ,  Hiroyuki Yanagi ,  Hiroyuki Yano

IPC分类号： B01J23/887 ,  B01J37/04 ,  C07C5/48 ,  C07C11/167 ,  C07B61/00 ,  B01J37/08 ,  B01F25/42

摘要： A metal oxide catalyst, which has a bulk composition represented by formula (1) below and which is used to produce a conjugated diolefin by an oxidative dehydrogenation reaction between a monoolefin, having 4 or more carbon atoms, and molecular oxygen, wherein standard deviation obtained by dividing a ratio of Bi molar concentration relative to Mo molar concentration at the surface of a catalyst particle by a ratio of the Bi molar concentration relative to the Mo molar concentration in a catalyst bulk is 0.3 or less. Mo12BipFeqAaBbCcDdEeFfOx  (1) (In the formula, A is at least one type of element selected from the group consisting of Ni and Co, B is at least one type of element selected from among alkali metal elements, C is at least one type of element selected from the group consisting of Mg, Ca, Sr, Ba, Zn and Mn, D is at least one type of rare earth element, E is at least one type of element selected from the group consisting of Cr, In and Ga, F is at least one type of element selected from the group consisting of Si, Al, Ti and Zr, O is oxygen, p, q, a, b, c, d, e, f and x denote the number of atoms of Bi, Fe, A, B, C, D, E, F and oxygen, respectively, relative to 12 Mo atoms, and are such that 0.1≤p≤5, 0.5≤q≤8, 0≤a≤10, 0.02≤b≤2, 0≤c≤5, 0≤d≤5, 0≤e≤5 and 0≤f≤200, and x is the number of oxygen atoms required to satisfy valency requirement of other elements present.)

公开(公告)号：US11370730B2

公开(公告)日：2022-06-28

申请号：US16771141

申请日：2019-02-01

申请人： LG CHEM, LTD.

发明人： Hyunseok Nam ,  Jun Han Kang ,  Kyong Yong Cha ,  Jaewon Jeong ,  Dong Hyun Ko ,  Jun Kyu Han ,  Sang Jin Han ,  Kyung Moo Lee ,  Joohyuck Lee ,  Daeheung Choi ,  Myungji Suh ,  Ye Seul Hwang ,  Sunhwan Hwang ,  Seongmin Kim

IPC分类号： C07C5/48 ,  C07C7/04 ,  B01D5/00

摘要： The present specification provides a method for preparing 1,3-butadiene, the method comprising: (A) obtaining a first product comprising a light component, 1,3-butadiene, and a heavy component from a reactant comprising butene; (B) separating the heavy component from a second product comprising the 1,3-butadiene and the light component by condensing the heavy component after heat exchanging the first product; and (C) separating concentrated heavy component by reboiling the condensed heavy component.

公开(公告)号：US11306044B2

公开(公告)日：2022-04-19

申请号：US17316556

申请日：2021-05-10

申请人： NOVA Chemicals (International) S.A.

发明人： Bolaji Olayiwola ,  Vasily Simanzhenkov ,  Shahin Goodarznia ,  Mohamed Aiffa

IPC分类号： C07C5/48 ,  B01J23/00 ,  B01J23/28 ,  B01J23/648 ,  B01J23/755

摘要： Provided in this disclosure is a process for the oxidative dehydrogenation of a lower alkane into a corresponding alkene. The process includes providing a gas stream comprising the lower alkane to a reactor; contacting, in the oxidative dehydrogenation reactor, the lower alkane with a catalyst that includes a mixed metal oxide; and providing to the last 50% of the oxidative dehydrogenation reactor a stream comprising from 0.01 vol. % to 10 vol. % of a C1-C3 alcohol.

公开(公告)号：US20220081375A1

公开(公告)日：2022-03-17

申请号：US17478767

申请日：2021-09-17

申请人： INDIAN OIL CORPORATION LIMITED

发明人： Vineeth Venu NATH ,  Hima Bindu DOOSA ,  Ram Mohan THAKUR ,  Saravanan SUBRAMANI ,  Sahithi RAVULURI ,  Madhusudan SAU ,  Gurpreet Singh KAPUR ,  Sankara Sri Venkata RAMAKUMAR

IPC分类号： C07C5/48 ,  C01B3/26 ,  C07C7/00 ,  C07C7/04 ,  C01B3/56 ,  B01D53/047

摘要： As part of an integrated oxidative alkane dehydrogenation and hydrogen generation process, carbon dioxide from Pressure Swing Adsorption (PSA) off gas stream of Hydrogen Generation Unit (HGU), and alkane from any known source are sent to oxidative dehydrogenation (ODH) unit for producing high value olefins, such as ethylene, propylene and butenes. Products formed from ODH reactor are separated and the stream comprising of hydrogen, carbon monoxide and methane are recycled to Shift reactor of HGU unit for enhanced production of hydrogen at PSA.

公开(公告)号：US11230513B2

公开(公告)日：2022-01-25

申请号：US17013028

申请日：2020-09-04

申请人： JSR Corporation ,  ENEOS CORPORATION

发明人： Mayu Sugimoto ,  Yuichiro Sasaki ,  Sosuke Higuchi ,  Nobuhiro Kimura

IPC分类号： C07C5/48 ,  C07C7/11

摘要： A process of producing 1,3-butadiene includes: a first step of obtaining gases containing 1,3-butadiene by an oxidative dehydrogenation reaction of a raw material gas with a molecular oxygen-containing gas in the presence of a metal oxide catalyst, the raw material gas containing 1-butene and 2-butene and having a proportion of 2-butene to a sum of 1-butene and 2-butene, which is defined as 100% by volume, being not less than 50% by volume; a second step of cooling the produced gases obtained in the first step; and a third step of separating the produced gases having undergone the second step into molecular oxygen and inert gases and other gases containing 1,3-butadiene by selective absorption to an absorbing solvent, wherein the concentration of methyl vinyl ketone in the produced gases having been cooled in the second step is 0% by volume or more and not more than 0.03% by volume.