公开(公告)号：US11091410B2

公开(公告)日：2021-08-17

申请号：US16491398

申请日：2018-03-05

Applicant: SABIC Global Technologies, B.V.

Inventor： Wugeng Liang ,  Sagar Sarsani ,  Aghaddin Mamedov ,  Hector Perez ,  David West ,  Istvan Lengyel

IPC: C07C2/84 ,  B01J23/00 ,  B01J23/10 ,  B01J23/30 ,  B01J35/02 ,  B01J37/00 ,  B01J37/04 ,  B01J37/08

Abstract: A mixed oxide catalyst for the oxidative coupling of methane can include a catalyst with the formula AaBbCcDdOx, wherein: element A is selected from alkaline earth metals; elements B and C are selected from rare earth metals, and wherein elements B and C are different rare earth metals; the oxide of at least one of A, B, C, and D has basic properties; the oxide of at least one of A, B, C, and D has redox properties; and elements A, B, C, and D are selected to create a synergistic effect whereby the catalytic material provides a methane conversion of greater than or equal to 15% and a C2+ selectivity of greater than or equal to 70%. Systems and methods can include contacting the catalyst with methane and oxygen and purifying or collecting C2+ products.

公开(公告)号：US20210046440A1

公开(公告)日：2021-02-18

申请号：US16977644

申请日：2019-03-07

Applicant: SABIC Global Technologies B.V.

Inventor： Sreekanth Pannala ,  Vladimir Shtern ,  Lei Chen ,  David West

IPC: B01J6/00 ,  C07C2/78 ,  B01J12/00 ,  B01J19/02 ,  B01J19/00 ,  B01J19/24 ,  B01J4/00

Abstract: A pyrolysis reactor (12) and method for the pyrolysis of hydrocarbon gases (e.g., methane) utilizes a pyrolysis reactor (12) having a unique burner assembly (44) and pyrolysis feed assembly (56) that creates an inwardly spiraling fluid flow pattern of the feed gases to form a swirling gas mixture that passes through a burner conduit (46) with a constricted neck portion or nozzle (52). At least a portion of the swirling gas mixture forms a thin, annular mixed gas flow layer immediately adjacent to the burner conduit (46). A portion of the swirling gas mixture is combusted as the swirling gas mixture passes through the burner conduit (46) and a portion of combustion products circulates in the burner assembly (44). This provides conditions suitable for pyrolysis of hydrocarbons or light alkane gas, such as methane or natural gas.

公开(公告)号：US10850242B2

公开(公告)日：2020-12-01

申请号：US16582129

申请日：2019-09-25

Applicant: SABIC Global Technologies, B.V.

Inventor： Lei Chen ,  Sreekanth Pannala ,  Robert Broekhuis ,  Hua Bai ,  Pankaj Gautam ,  David West

IPC: B01F5/04 ,  B01J4/00 ,  B01F3/02 ,  B01F5/00

Abstract: A device for mixing two gas streams, the device includes: an inner pipe, wherein: the inner pipe is arranged substantially concentrically within an outer pipe and forms an annulus between an outer diameter of the inner pipe and an inner diameter of the outside pipe; the inner pipe is closed at a downstream end; and the inner pipe comprises a plurality of perforations; and the outer pipe, wherein: a downstream end of the outer pipe extends into a reactor; the outer pipe is closed at the downstream end; and the downstream end of the outer pipe comprises a plurality of perforations. The mixed gas stream can enter the reactor. The reactor can be an Oxidative Coupling of Methane (OCM) reactor.

公开(公告)号：US10702856B2

公开(公告)日：2020-07-07

申请号：US16303278

申请日：2017-05-16

Applicant: SABIC Global Technologies B.V.

Inventor： Wugeng Liang ,  Sagar Sarsani ,  David West

IPC: B01J23/34 ,  C07C2/84 ,  B01J37/04 ,  B01J37/08 ,  B01J23/00 ,  B01J21/08 ,  B01J23/04 ,  C07C11/04 ,  C07C27/14 ,  C07C29/48 ,  C07C31/08 ,  B01J37/02 ,  B01J35/00

Abstract: Disclosed is a supported catalyst and methods to prepare and use the supported catalyst in an oxidative coupling of methane (OCM) reaction. The supported catalyst can contain MnWO4 or MnWO4 nanostructures that are in contact with the surface of a sodium containing silicon dioxide support material. The supported MnWO4 catalyst can have an active MnWO4 crystal phase.