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1. 发明申请

US20230041466A1 METHOD FOR PREPARING CERIA-ZIRCONIA COMPOSITE OXIDE, CERIA-ZIRCONIA COMPOSITE OXIDE, CATALYST COMPRISING SAME, AND METHOD FOR PREPARING BUTADIENE 有权
公开(公告)号：US20230041466A1
公开(公告)日：2023-02-09
申请号：US17790065
申请日：2021-08-10
申请人： LG CHEM, LTD.
发明人： Sang Jin HAN , Dong Hyun KO , Jun Han KANG , Ye Seul HWANG , Sunhwan HWANG
IPC分类号： B01J21/06 , B01J23/10 , C04B35/48 , C07C11/167 , B01J23/83 , B01J37/08
摘要： The present disclosure relates to a method for preparing a ceria-zirconia composite oxide, a ceria-zirconia composite oxide, and a catalyst including the same.

2. 发明申请

US20220340506A1 METHOD FOR PRODUCING 1,3-BUTADIENE 有权
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.

3. 发明授权

US11406969B2 Metal oxide catalyst, method for producing same, and apparatus for producing same 有权
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.)

4. 发明授权

US11352307B2 Catalyst, device for manufacturing conjugated diene, and method for manufacturing conjugated diene 有权
公开(公告)号：US11352307B2
公开(公告)日：2022-06-07
申请号：US16645938
申请日：2018-09-27
申请人： SEKISUI CHEMICAL CO., LTD.
发明人： Noritoshi Yagihashi , Toshihito Miyama , Shinsuke Watanabe , Haruka Nishiyama
IPC分类号： B01J23/10 , B01J21/06 , B01J23/06 , C07C1/20 , C07C6/10 , C07C11/167
摘要： A catalyst for synthesizing a conjugated diene from a raw material including an alcohol, which includes at least Ce and Zn as metal elements constituting the catalyst. An apparatus for producing a conjugated diene, including: a reaction tube (1) provided with the catalyst; a supply means for supplying a raw material gas containing the raw material into the reaction tube (1); and an outlet means for releasing a product from the reaction tube (1). A method for producing a conjugated diene, including contacting a raw material gas containing a raw material with the catalyst to obtain a conjugated diene. The amount of the raw material is preferably 10 to 50% by volume (in terms of gas volume) with respect to 100% by volume (in terms of gas volume) of the raw material gas.

5. 发明授权

US10689313B2 Processes and systems for purification of 1,3-butadiene 有权
公开(公告)号：US10689313B2
公开(公告)日：2020-06-23
申请号：US15763667
申请日：2016-10-17
申请人： SABIC Global Technologies B.V.
发明人： Radu Mihai Ignat , Michael Schleger
IPC分类号： C07C7/00 , B01D3/14 , C07C7/04 , B01D3/42 , C07C11/167
摘要： Systems for purifying 1,3-butadiene are provided. An exemplary system includes a first distillation column, a second distillation column, and interconnections between the first and second distillation columns. A first interconnection can feed a liquid stream from the second distillation column to the first, while a second interconnection can feed a gas stream from the second distillation column to the first. Processes for purifying 1,3-butadiene are also provided.

6. 发明授权

US10654774B2 Processes and systems for purification of 1,3-butadiene 有权
公开(公告)号：US10654774B2
公开(公告)日：2020-05-19
申请号：US15763667
申请日：2016-10-17
申请人： SABIC Global Technologies B.V.
发明人： Radu Mihai Ignat , Michael Schleger
IPC分类号： C07C7/00 , B01D3/14 , C07C7/04 , B01D3/42 , C07C11/167
摘要： Systems for purifying 1,3-butadiene are provided. An exemplary system includes a first distillation column, a second distillation column, and interconnections between the first and second distillation columns. A first interconnection can feed a liquid stream from the second distillation column to the first, while a second interconnection can feed a gas stream from the second distillation column to the first. Processes for purifying 1,3-butadiene are also provided.

7. 发明授权

US10647624B2 Method for producing butadiene from butanediols 有权
公开(公告)号：US10647624B2
公开(公告)日：2020-05-12
申请号：US16063595
申请日：2016-12-13
申请人： IFP Energies nouvelles , COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
发明人： Nuno Pacheco , Margarita Dorato , Marc Jacquin , Rejane Dastillung , Sophie Couderc
IPC分类号： C07C1/207 , C07C67/08 , C07C51/46 , C07C1/213 , C07C51/09 , C07C51/44 , C07C11/167 , C07C69/16
摘要： The invention relates to a method for producing 1,3-butanediene from a butanediol feedstock that includes: a) A step for esterification of butanediol by a carboxylic acid to form the corresponding diester; b) A step for pyrolysis of the diester effluent obtained from step a); c) A step for distillation fed by at least the carboxylic acid effluent obtained from step a), and producing an aqueous distillate and a carboxylic acid residue; d) A step for drying the carboxylic acid that is fed at least by the carboxylic acid residue obtained from step c) and producing a water effluent and a carboxylic acid product that feeds step a).

8. 发明授权

US10421700B2 Process for preparing 1,3-butadiene from n-butenes by oxidative dehydrogenation 有权
公开(公告)号：US10421700B2
公开(公告)日：2019-09-24
申请号：US15561711
申请日：2016-03-23
申请人： BASF SE , Linde AG
发明人： Jan Pablo Josch , Ragavendra Prasad Balegedde Ramachandran , Christian Walsdorff , Regina Benfer , Anton Wellenhofer , Ulrike Wenning , Heinz Boelt , Hendrik Reyneke , Christine Toegel
IPC分类号： C07C5/48 , C07C7/00 , C07C7/08 , C07C7/09 , C07C7/11 , C07C11/167
摘要： The invention relates to a process for producing butadiene from n-butenes which comprises the steps of: A) providing a vaporous n-butenes-comprising input gas stream a1 by evaporating a liquid n-butenes-comprising stream a0; B) introducing the vaporous n-butenes-comprising input gas stream a1 and an at least oxygenous gas into at least one oxidative dehydrogenation zone and oxidatively dehydrogenating n-butenes to butadiene to obtain a product gas stream b comprising butadiene, unconverted n-butenes, steam, oxygen, low-boiling hydrocarbons, high-boiling secondary components, possibly carbon oxides and possibly inert gases, Ca) chilling the product gas stream b by contacting with a cooling medium comprising an organic solvent in at least one chilling zone, the cooling medium being at least partially recycled into the chilling zone, Cb) compressing the chilled product gas stream b which is possibly depleted of high-boiling secondary components in at least one compression stage to obtain at least one aqueous condensate stream c1 and a gas stream c2 comprising butadiene, n-butenes, steam, oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases, D) removing noncondensable and low-boiling gas constituents comprising oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases as gas stream d2 from the gas stream c2 by absorbing the C4 hydrocarbons comprising butadiene and n-butenes into an absorption medium to obtain a C4-hydrocarbons-laden absorption medium stream and the gas stream d2 and subsequently desorbing the C4 hydrocarbons from the laden absorption medium stream to obtain a C4 product gas stream d1, wherein at least some of the recycled cooling medium from step Ca) is brought into thermal contact with the liquid n-butenes-comprising stream a0 in one or more indirect heat exchangers and at least some of the liquid n-butenes-comprising stream a0 is evaporated by indirect heat transfer with the recycled cooling medium.

9. 发明授权

US10384990B2 Method for producing 1,3-butadiene by dehydrogenating n-butenes, a material flow containing butanes and 2-butenes being provided 有权
公开(公告)号：US10384990B2
公开(公告)日：2019-08-20
申请号：US15525330
申请日：2015-11-09
申请人： BASF SE , Linde AG
发明人： Jan Ungelenk , Philipp Grüne , Christian Walsdorff , Jan Pablo Josch , Michael Bender
IPC分类号： C07C5/48 , C07C2/10 , C07C2/62 , C07C6/04 , C07C7/08 , C07C7/11 , C07C2/06 , C07C2/56 , C07C9/16 , C07C11/06 , C07C11/167
摘要： The invention relates to a process for preparing 1,3-butadiene from n-butenes, comprising the steps of: A) providing an input gas stream a comprising butanes, 1-butene, 2-butene and isobutene, with or without 1,3-butadiene, from a fluid catalytic cracking plant; B) removing isobutene from the input gas stream a, giving a stream b comprising butanes, 1-butene and 2-butene, with or without 1,3-butadiene; C) feeding the stream b comprising butanes, 1-butene and 2-butene and optionally an, oxygenous gas and optionally water vapor into at least one dehydrogenating zone and dehydrogenating 1-butene and 2-butene to 1,3-butadiene, giving a product gas stream c comprising 1,3-butadiene, butanes, 2-butene and water vapor, with or without oxygen, with low-boiling hydrocarbons, with high-boiling secondary components, with or without carbon oxides and with or without inert gases; D) cooling and compressing the product gas stream c, giving at least one aqueous condensate stream d1 and a gas stream d2 comprising 1,3-butadiene, butanes, 2-butene and water vapor, with or without oxygen, with low-boiling hydrocarbons, with or without carbon oxides and with or without inert gases; Ea) removing uncondensable and low-boiling gas constituents comprising low-boiling hydrocarbons, with or without oxygen, with or without carbon oxides and with or without inert gases, as gas stream e2 from the gas stream d2 by absorbing the C4 hydrocarbons comprising 1,3-butadiene, butanes and 2-butene in an absorbent, giving an absorbent stream laden with C4 hydrocarbons and the gas stream e2, and Eb) subsequently desorbing the C4 hydrocarbons from the laden absorbent stream, giving a C4 hydrocarbon stream e1; F) separating the C4 hydrocarbon stream e1 by extractive distillation with a 1,3-butadiene-selective solvent into a stream f1 comprising 1,3-butadiene and the selective solvent and a stream f2 comprising butanes and 2-butene, wherein at least 90% of the 1-butene present in stream b is converted in step C) and a product stream f2 comprising butanes and 2-butene is obtained in step F.

10. 发明授权

US10370309B2 Method for producing conjugated diene 有权
公开(公告)号：US10370309B2
公开(公告)日：2019-08-06
申请号：US15699666
申请日：2017-09-08
申请人： Mitsubishi Chemical Corporation
发明人： Hiroki Hinoishi , Kazuyuki Iwakai , Hiroshi Kameo
IPC分类号： C07C5/48 , C07C7/09 , C07C7/11 , C07C11/167 , B01J23/00 , B01J23/887 , C07B61/00
摘要： The invention is concerned with a method for producing a conjugated diene including a reaction step of subjecting a raw material gas containing a monoolefin having a carbon atom number of 4 or more to an oxidative dehydrogenation reaction with a gas containing molecular oxygen in the presence of a catalyst, to obtain a reaction product gas containing a conjugated diene; and a cooling step of cooling the reaction product gas, wherein in the cooling step, a cooling agent is supplied into a cooling column and brought into contact with the reaction product gas; the cooling agent discharged from the cooling column is then cooled by a heat exchanger; a precipitate dissolved in the cooling agent is precipitated within the heat exchanger and recovered; and the cooling agent from which the precipitate has been recovered is circulated into the cooling column.

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