公开(公告)号：US11220469B2

公开(公告)日：2022-01-11

申请号：US16754162

申请日：2018-10-09

Applicant: Dow Global Technologies LLC

Inventor： Barry B. Fish ,  Peter E. Groenendijk ,  Davy L. S. Nieskens ,  Andrzej Malek ,  Brien A. Stears

IPC: C07C1/00 ,  C07C1/04 ,  C01B3/38 ,  C07C4/02 ,  C07C5/333

Abstract: A process for converting a feed stream having carbon to C2 to C5 olefins, includes introducing a feed stream including methane and oxygen to a first reaction zone, reacting the methane and oxygen in the first reaction zone to form a first reaction zone product stream having a mixture of C2 to C5 alkanes, transporting the mixture of C2 to C5 alkanes to a second reaction zone, introducing a fresh stream of at least one of ethane and propane to the second reaction zone, converting the C2 to C5 alkanes to C2 to C5 olefins in the second reaction zone, producing one or more product streams in the second reaction zone, where a sum of the one or more product streams includes C2 to C5 olefins, and producing a recycle stream comprising hydrogen in the second reaction zone, where the recycle stream is transported to the first reaction zone.

公开(公告)号：US20210198164A1

公开(公告)日：2021-07-01

申请号：US16754162

申请日：2018-10-09

Applicant: Dow Global Technologies LLC

Inventor： Barry B. Fish ,  Peter E. Groenendijk ,  Davy L.S. Nieskens ,  Andrzej Malek ,  Brien A. Stears

IPC: C07C1/04 ,  C07C5/333 ,  C07C4/02 ,  C01B3/38

Abstract: A process for converting a feed stream having carbon to C2 to C5 olefins, includes introducing a feed stream including methane and oxygen to a first reaction zone, reacting the methane and oxygen in the first reaction zone to form a first reaction zone product stream having a mixture of C2 to C5 alkanes, transporting the mixture of C2 to C5 alkanes to a second reaction zone, introducing a fresh stream of at least one of ethane and propane to the second reaction zone, converting the C2 to C5 alkanes to C2 to C5 olefins in the second reaction zone, producing one or more product streams in the second reaction zone, where a sum of the one or more product streams includes C2 to C5 olefins, and producing a recycle stream comprising hydrogen in the second reaction zone, where the recycle stream is transported to the first reaction zone.

公开(公告)号：US10808999B2

公开(公告)日：2020-10-20

申请号：US15514272

申请日：2015-09-22

Applicant: Dow Global Technologies LLC

Inventor： Isa K. Mbaraka ,  William L. Jackson, Jr. ,  Martin A. Cogswell ,  Mark Siddoway ,  Brien A. Stears

IPC: F25J3/02 ,  C07C7/00 ,  C07C7/09 ,  C07C7/04

Abstract: A process for recovery of C2 and C3 components in an on-purpose propylene production system includes utilizing a packed rectifier with a countercurrent stream to strip C2 and C3 components from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.

公开(公告)号：US10507448B2

公开(公告)日：2019-12-17

申请号：US16346626

申请日：2017-10-30

Applicant: Dow Global Technologies LLC

Inventor： Matthew T. Pretz ,  Ben J. Freireich ,  Madhusudhan Kodam ,  Brien A. Stears

IPC: B01J8/00 ,  B01J8/18 ,  B01J8/24 ,  B01J8/26 ,  B01J19/00

Abstract: According to one or more embodiments of the present disclosure, a fluid catalytic reactor may be scaled-up by a method that includes one or more of constructing, operating, observing, or obtaining data related to a template fluid catalytic reactor comprising a template riser, a template lower reactor portion, and a template transition portion connecting the template riser and the template lower reactor portion. The method may further include one or more of constructing or operating a scaled-up fluid catalytic reactor based on the template fluid catalytic reactor.

公开(公告)号：US09884314B2

公开(公告)日：2018-02-06

申请号：US14420677

申请日：2013-07-31

Applicant: Dow Global Technologies LLC

Inventor： Lin Luo ,  Brien A. Stears

IPC: B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J23/54 ,  B01J23/56 ,  B01J23/58 ,  B01J23/62 ,  B01J23/63 ,  B01J23/64 ,  B01J23/76 ,  B01J23/78 ,  B01J23/825 ,  B01J23/83 ,  B01J23/84 ,  B01J23/86 ,  B01J23/89 ,  B01J38/02 ,  B01J38/12 ,  B01J38/18 ,  B01J38/38 ,  B01J23/96 ,  B01J23/648 ,  B01J23/652 ,  C07C5/333

CPC classification number: B01J23/96 ,  B01J23/648 ,  B01J23/6482 ,  B01J23/652 ,  B01J23/6522 ,  B01J23/8906 ,  B01J23/8993 ,  B01J38/02 ,  B01J38/12 ,  B01J38/18 ,  B01J38/38 ,  C07C5/3337 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2521/12 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2523/08 ,  C07C2523/10 ,  C07C2523/22 ,  C07C2523/26 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/46 ,  C07C2523/652 ,  C07C2523/745 ,  C07C2523/89 ,  Y02P20/52 ,  Y02P20/584 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08

Abstract: A catalyst comprising a Group IIIA metal, a Group VIII noble metal, and an optional promoter metal, on a support selected from silica, alumina, silica-alumina compositions, rare earth modified alumina, and combinations thereof, doped with iron, a Group VIB metal, a Group VB metal, or a combination thereof, offers decreased reactivation time under air soak in comparison with otherwise identical catalysts. Reducing reactivation time may, in turn, reduce costs, both in inventory and capital.

公开(公告)号：US09776170B2

公开(公告)日：2017-10-03

申请号：US15035315

申请日：2014-12-02

Applicant: Dow Global Technologies LLC

Inventor： Mark P. Kaminsky ,  Andrzej Malek ,  Lin Luo ,  Brien A. Stears ,  Isa K. Mbaraka ,  Devon C. Rosenfeld

IPC: B01J21/08 ,  B01J21/04 ,  B01J21/12 ,  B01J23/08 ,  B01J37/02 ,  C07C5/333

CPC classification number: B01J23/08 ,  B01J37/0201 ,  B01J37/0215 ,  B01J37/0236 ,  B01J37/0242 ,  C07C5/3332 ,  C07C2521/02 ,  C07C2521/04 ,  C07C2521/12 ,  C07C2523/08 ,  Y02P20/52 ,  C07C11/06

Abstract: A heterogeneous catalyst suitable for use in alkane dehydrogenation has an active layer that includes alumina and gallia. The active layer is dispersed on a support such as alumina or silica-modified alumina.

公开(公告)号：US20160288093A1

公开(公告)日：2016-10-06

申请号：US15035315

申请日：2014-12-02

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Mark P. Kaminsky ,  Andrzej Malek ,  Lin Luo ,  Brien A. Stears ,  Isa K. Mbaraka ,  Devon C. Rosenfeld

IPC: B01J23/08 ,  B01J37/02

CPC classification number: B01J23/08 ,  B01J37/0201 ,  B01J37/0215 ,  B01J37/0236 ,  B01J37/0242 ,  C07C5/3332 ,  C07C2521/02 ,  C07C2521/04 ,  C07C2521/12 ,  C07C2523/08 ,  Y02P20/52 ,  C07C11/06

Abstract: A heterogeneous catalyst suitable for use in alkane dehydrogenation has an active layer that includes alumina and gallia. The active layer is dispersed on a support such as alumina or silica-modified alumina.

Abstract translation: 适用于烷烃脱氢的非均相催化剂具有包括氧化铝和胆碱的活性层。 活性层分散在载体如氧化铝或二氧化硅改性的氧化铝上。

公开(公告)号：US11845721B2

公开(公告)日：2023-12-19

申请号：US17830038

申请日：2022-06-01

Applicant: Dow Global Technologies LLC

Inventor： Barry Brent Fish ,  Peter E. Groenendijk ,  Andrzej Malek ,  Davy L. S. Nieskens ,  Brien A. Stears

IPC: B01D3/14 ,  C07C7/08 ,  B01D3/40 ,  B01D53/14

CPC classification number: C07C7/08 ,  B01D3/143 ,  B01D3/40 ,  B01D53/1418 ,  B01D53/1425 ,  B01D53/1475 ,  B01D2252/204

Abstract: A method for separating CO2 from C2 to C5 alkanes includes introducing a first stream including C2 to C5 alkanes and CO2 into a first separation zone, the first separation zone including a hydrocarbon solvent, and separating the first stream into a recycle stream and a second stream in the first separation zone. The recycle stream including CO2 and one or more of CO, H2, and CH4, and the second stream including C2 to C5 alkanes. The method further includes introducing the second stream into a second separation zone, and separating the second stream into a third stream and a fourth stream, wherein the third stream includes C2 alkanes and the fourth stream includes C3 to C5 alkanes.

公开(公告)号：US20230257327A1

公开(公告)日：2023-08-17

申请号：US18307619

申请日：2023-04-26

Applicant: Dow Global Technologies LLC

Inventor： Kevin Blann ,  Alexey Kirilin ,  Andrzej Malek ,  Victor Sussman ,  Matthew T. Pretz ,  Brien A. Stears ,  Barry B. Fish ,  Eric E. Stangland ,  Brian W. Goodfellow ,  Manish Sharma

IPC: C07C5/48 ,  B01J21/04 ,  B01J21/06 ,  B01J21/10 ,  B01J23/08 ,  B01J23/26 ,  B01J23/42

CPC classification number: C07C5/48 ,  B01J21/04 ,  B01J21/06 ,  B01J21/10 ,  B01J23/08 ,  B01J23/26 ,  B01J23/42 ,  C07C2521/04 ,  C07C2521/06 ,  C07C2521/10 ,  C07C2523/08 ,  C07C2523/26 ,  C07C2523/42

Abstract: According to one or more embodiments described herein, a method for dehydrogenating hydrocarbons may include passing a hydrocarbon feed comprising one or more alkanes or alkyl aromatics into a fluidized bed reactor, contacting the hydrocarbon feed with a dehydrogenation catalyst in the fluidized bed reactor to produce a dehydrogenated product and hydrogen, and contacting the hydrogen with an oxygen-rich oxygen carrier material in the fluidized bed reactor to combust the hydrogen and form an oxygen-diminished oxygen carrier material. In additional embodiments, a dual-purpose material may be utilized which has dehydrogenation catalyst and oxygen carrying functionality.

公开(公告)号：US20190282987A1

公开(公告)日：2019-09-19

申请号：US16346626

申请日：2017-10-30

Applicant: Dow Global Technologies LLC

Inventor： Matthew T. Pretz ,  Ben J. Freireich ,  Madhusudhan Kodam ,  Brien A. Stears

IPC: B01J8/26

Abstract: According to one or more embodiments of the present disclosure, a fluid catalytic reactor may be scaled-up by a method that includes one or more of constructing, operating, observing, or obtaining data related to a template fluid catalytic reactor comprising a template riser, a template lower reactor portion, and a template transition portion connecting the template riser and the template lower reactor portion. The method may further include one or more of constructing or operating a scaled-up fluid catalytic reactor based on the template fluid catalytic reactor.