公开(公告)号：US11572321B2

公开(公告)日：2023-02-07

申请号：US17532472

申请日：2021-11-22

Applicant: Dow Global Technologies LLC

Inventor： Davy L. S. Nieskens ,  Glenn Pollefeyt ,  Andrzej Malek ,  Edward M. Calverley ,  Peter E. Groenendijk ,  Aysegul Ciftci Sandikci

IPC: C07C1/04 ,  B01J21/02 ,  B01J23/26 ,  B01J23/80 ,  C07C1/12

Abstract: A process for preparing C2 to C5 paraffins includes introducing a feed stream comprising hydrogen gas and a carbon-containing gas into a reaction zone of a reactor, and converting the feed stream into a product stream comprising C2 to C5 paraffins in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst includes a metal oxide catalyst component and a microporous catalyst component. The metal oxide catalyst component satisfies: an atomic ratio of Cu/Zn from 0.01 to 3.00; an atomic ratio of Cr/Zn from 0.01 to 1.50; and percentage of (Al+Cr) from greater than 0.0 at % to 50.0 at % based on a total amount of metal in the metal oxide catalyst component.

公开(公告)号：US10787611B2

公开(公告)日：2020-09-29

申请号：US16471170

申请日：2017-12-21

Applicant: Dow Global Technologies LLC

Inventor： Davy L. S. Nieskens ,  Aysegul Ciftci Sandikci ,  Peter E. Groenendijk ,  Andrzej Malek

IPC: C10G2/00 ,  C07C1/04 ,  B01J23/06 ,  B01J23/26 ,  B01J29/85 ,  B01J37/18 ,  C01B39/54

Abstract: A process for preparing C2 to C3 olefins includes introducing a feed stream having a volumetric ratio of hydrogen to carbon monoxide from greater than 0.5:1 to less than 5:1 into a reactor, and contacting the feed stream with a bifunctional catalyst. The bifunctional catalyst includes a Cr/Zn oxide methanol synthesis component having a Cr to Zn molar ratio from greater than 1.0:1 to less than 2.15:1, and a SAPO-34 silicoaluminophosphate microporous crystalline material. The reactor operates at a temperature ranging from 350° C. to 450° C., and a pressure ranging from 10 bar (1.0 MPa) to 60 bar (6.0 MPa). The process has a cumulative productivity of C2 to C3 olefins greater than 15 kg C2 to C3 olefins/kg catalyst.

公开(公告)号：US10329209B2

公开(公告)日：2019-06-25

申请号：US15769871

申请日：2016-09-07

Applicant: Dow Global Technologies LLC

Inventor： Davy Nieskens ,  Aysegul Ciftci Sandikci ,  Peter E. Groenendijk ,  Andrzej Malek

IPC: C07C1/04 ,  C10G2/00 ,  C07C11/04 ,  C07C11/06

Abstract: A process for preparing C2 and C3 olefins comprises contacting a feedstream including hydrogen, carbon monoxide, and a bifunctional catalyst in a reaction under certain specified conditions. The catalyst includes as components (1) chromium oxide and zinc oxide mixed metal oxides, and (2) a SAPO-34 molecular sieve. The resulting product of the reaction is relatively high in the target lower olefins and relatively low in less desirable products, including C2 and C3 paraffins, C4+ hydrocarbons, oxygenates, and methane, thereby reducing or eliminating the need for certain previously common and costly separations. The bifunctional catalyst as used in the inventive process also offers improvements in catalyst life in comparison with some methanol-to-olefins catalysts. The process may be carried out as a single unit operation.

公开(公告)号：US11548835B2

公开(公告)日：2023-01-10

申请号：US16757694

申请日：2018-10-11

Applicant: Dow Global Technologies LLC

Inventor： Alexey Kirilin ,  Adam Chojecki ,  Kyle C. Andrews ,  Vera P. Santos Castro ,  Aysegul Ciftci Sandikci ,  Davy L. S. Nieskens ,  Peter E. Groenendijk ,  Andrzej Malek

IPC: C07C1/04 ,  B01J21/06 ,  B01J23/06 ,  B01J29/85 ,  B01J35/10

Abstract: A process for preparing C2 to C5 olefins includes introducing a feed stream comprising hydrogen and at least one carbon-containing component selected from the group consisting of CO, CO2, and mixtures thereof into a reaction zone. The feed stream is contacted with a hybrid catalyst in the reaction zone, and a product stream is formed that exits the reaction zone and includes C2 to C5 olefins. The hybrid catalyst includes a methanol synthesis component and a solid microporous acid component that is selected from molecular sieves having 8-MR access and having a framework type selected from the group consisting of CHA, AEI, AFX, ERI, LTA, UFI, RTH, and combinations thereof. The methanol synthesis component comprises a metal oxide support and a metal catalyst. The metal oxide support includes titania, zirconia, hafnia or mixtures thereof, and the metal catalyst includes zinc.

公开(公告)号：US11208363B2

公开(公告)日：2021-12-28

申请号：US16967599

申请日：2019-02-07

Applicant: Dow Global Technologies LLC

Inventor： Davy L. S. Nieskens ,  Glenn Pollefeyt ,  Andrzej Malek ,  Edward M. Calverley ,  Peter E. Groenendijk ,  Aysegul Ciftci Sandikci

IPC: C07C1/04 ,  B01J21/02 ,  B01J23/26 ,  B01J23/80 ,  C07C1/12

Abstract: A process for preparing C2 to C5 paraffins includes introducing a feed stream comprising hydrogen gas and a carbon-containing gas into a reaction zone of a reactor, and converting the feed stream into a product stream comprising C2 to C5 paraffins in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst includes a metal oxide catalyst component and a microporous catalyst component. The metal oxide catalyst component satisfies: an atomic ratio of Cu/Zn from 0.01 to 3.00; an atomic ratio of Cr/Zn from 0.01 to 1.50; and percentage of (Al+Cr) from greater than 0.0 at % to 50.0 at % based on a total amount of metal in the metal oxide catalyst component.

公开(公告)号：US20200123078A1

公开(公告)日：2020-04-23

申请号：US16483653

申请日：2018-02-02

Applicant: Dow Global Technologies LLC

Inventor： Davy L.S. Nieskens ,  Aysegul Ciftci Sandikci ,  Peter E. Groenendijk ,  Andrzej Malek

IPC: C07C1/04 ,  B01J29/85 ,  B01J23/80 ,  C10G2/00

Abstract: A process for converting a feed stream to C2 to C5 hydrocarbons includes introducing a feed stream of hydrogen and at least one carbon-containing component selected from CO, CO2, and mixtures thereof into a reaction zone at an initial reactor pressure and an initial reactor temperature. The feed stream is contacted to a hybrid catalyst positioned in the reaction zone, and the hybrid catalyst includes a methanol synthesis component and a solid microporous acid material. The pressure within the reaction zone is increased during the contacting of the feed stream to the hybrid catalyst from the initial reactor pressure to a final reactor pressure. A temperature within the reaction zone at any time during the contacting of the feed stream to the hybrid catalyst is within±20° C. of the initial reactor temperature.

公开(公告)号：US20180305272A1

公开(公告)日：2018-10-25

申请号：US15769871

申请日：2016-09-07

Applicant: Dow Global Technologies LLC

Inventor： Davy Nieskens ,  Aysegul Ciftci Sandikci ,  Peter E. Groenendijk ,  Andrzej Malek

IPC: C07C1/04

CPC classification number: C07C1/043 ,  C07C11/04 ,  C07C11/06 ,  C07C2523/06 ,  C07C2523/26 ,  C07C2529/85 ,  C10G2/334 ,  C10G2400/20 ,  Y02P30/40

Abstract: A process for preparing C2 and C3 olefins comprises contacting a feedstream including hydrogen, carbon monoxide, and a bifunctional catalyst in a reaction under certain specified conditions. The catalyst includes as components (1) chromium oxide and zinc oxide mixed metal oxides, and (2) a SAPO-34 molecular sieve. The resulting product of the reaction is relatively high in the target lower olefins and relatively low in less desirable products, including C2 and C3 paraffins, C4+ hydrocarbons, oxygenates, and methane, thereby reducing or eliminating the need for certain previously common and costly separations. The bifunctional catalyst as used in the inventive process also offers improvements in catalyst life in comparison with some methanol-to-olefins catalysts. The process may be carried out as a single unit operation.

公开(公告)号：US20210087120A1

公开(公告)日：2021-03-25

申请号：US16967599

申请日：2019-02-07

Applicant: Dow Global Technologies LLC

Inventor： Davy L.S. Nieskens ,  Glenn Pollefeyt ,  Andrzej Malek ,  Edward M. Calverley ,  Peter E. Groenendijk ,  Aysegul Ciftci Sandikci

IPC: C07C1/04 ,  B01J23/26 ,  B01J21/02 ,  B01J23/80 ,  C07C1/12

Abstract: A process for preparing C2 to C5 paraffins includes introducing a feed stream comprising hydrogen gas and a carbon-containing gas into a reaction zone of a reactor, and converting the feed stream into a product stream comprising C2 to C5 paraffins in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst includes a metal oxide catalyst component and a microporous catalyst component. The metal oxide catalyst component satisfies: an atomic ratio of Cu/Zn from 0.01 to 3.00; an atomic ratio of Cr/Zn from 0.01 to 1.50; and percentage of (Al+Cr) from greater than 0.0 at % to 50.0 at % based on a total amount of metal in the metal oxide catalyst component.

公开(公告)号：US20200017774A1

公开(公告)日：2020-01-16

申请号：US16471170

申请日：2017-12-21

Applicant: Dow Global Technologies LLC

Inventor： Davy L.S. Nieskens ,  Aysegul Ciftci Sandikci ,  Peter E. Groenendijk ,  Andrzej Malek

IPC: C10G2/00 ,  B01J29/85 ,  B01J23/26 ,  B01J23/06 ,  C01B39/54 ,  B01J37/18 ,  C07C1/04

Abstract: A process for preparing C2 to C3 olefins includes introducing a feed stream having a volumetric ratio of hydrogen to carbon monoxide from greater than 0.5:1 to less than 5:1 into a reactor, and contacting the feed stream with a bifunctional catalyst. The bifunctional catalyst includes a Cr/Zn oxide methanol synthesis component having a Cr to Zn molar ratio from greater than 1.0:1 to less than 2.15:1, and a SAPO-34 silicoaluminophosphate microporous crystalline material. The reactor operates at a temperature ranging from 350° C. to 450° C., and a pressure ranging from 10 bar (1.0 MPa) to 60 bar (6.0 MPa). The process has a cumulative productivity of C2 to C3 olefins greater than 15 kg C2 to C3 olefins/kg catalyst.

公开(公告)号：US10513471B2

公开(公告)日：2019-12-24

申请号：US16461693

申请日：2017-11-15

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Davy L. S. Nieskens ,  Aysegul Ciftci Sandikci ,  Peter E. Groenendijk ,  Barry B. Fish ,  Andrzej M. Malek

IPC: C07C1/06 ,  C07C1/04 ,  C01B3/22 ,  C07C9/08 ,  C07C9/10 ,  C07C9/14 ,  C07C9/06

Abstract: A process and system for preparing C2 to C5 hydrocarbons includes introducing a feed stream containing hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a first reaction zone, contacting the feed stream and a hybrid catalyst in the first reaction zone, introducing a reaction zone product stream into a water removal zone that is downstream from the first reaction zone, and introducing a product stream from the water removal zone into a second reaction zone, resulting in a final stream comprising C2 to C5 hydrocarbons. The hybrid catalyst includes a methanol synthesis component and a microporous solid acid component; the microporous solid acid component is a molecular sieve having 8-MR access. The water removal zone removes at least a portion of water from the reaction zone product stream.