公开(公告)号：US20200262774A1

公开(公告)日：2020-08-20

申请号：US16645610

申请日：2018-08-23

Applicant: BP P.L.C. ,  BP (CHINA) HOLDINGS LTD

Inventor： Benjamin James DENNIS-SMITHER ,  John Glenn SUNLEY ,  Zhiqiang YANG

IPC: C07C41/09

Abstract: A process for dehydrating methanol to dimethyl ether product in the presence of an aluminosilicate zeolite catalyst and a promoter selected from (i) aldehyde of formula R1CHO (Formula I) in which R1 is hydrogen, a C1-C11 alkyl group or a C3-C11 alkyl group in which 3 or more carbon atoms are joined to form a ring; or (ii) acetal derivative of an aldehyde of Formula I; and the molar ratio of promoter to methanol is maintained at 0.1 or less.

公开(公告)号：US20220144739A1

公开(公告)日：2022-05-12

申请号：US17433122

申请日：2020-02-14

Applicant: BP P.L.C.

Inventor： Benjamin James DENNIS-SMITHER ,  John Glenn SUNLEY ,  Fiona JACKSON

IPC: C07C41/09

Abstract: A process for dehydrating C2+ alcohols to ether products in the presence of a catalyst and promoter, wherein the catalyst is at least one aluminosilicate zeolite catalyst which is a medium pore zeolite having a 3-dimensional framework structure, and the promoter is one or more organic carbonyl compounds or derivatives thereof, and wherein and the molar ratio of promoter to C2+ alcohols is maintained at less than 1.

公开(公告)号：US20210163389A1

公开(公告)日：2021-06-03

申请号：US16641629

申请日：2018-08-24

Applicant: BP P.L.C. ,  BP (CHINA) HOLDINGS LTD

Inventor： Benjamin James DENNIS-SMITHER ,  John Glenn SUNLEY

IPC: C07C41/09 ,  C07C43/04 ,  B01J29/65 ,  B01J29/40 ,  B01J29/18 ,  B01J29/70 ,  B01J29/08 ,  B01J31/02 ,  B01J31/26

Abstract: A process for dehydrating methanol to dimethyl ether product in the presence of a solid Brønsted acid catalyst which is an aluminosilicate zeolite or a heteropolyacid and a promoter which is (i) a ketone of formula R1COR2 (Formula I) in which R1 and R2 are identical or different and are each a C1-C11 alkyl group and furthermore R1 and R2 together with the carbonyl carbon atom to which they are bonded may form a cyclic ketone; or (ii) a ketal derivative of a ketone of Formula I; and the molar ratio of promoter to methanol is maintained at 0.5 or less.

公开(公告)号：US20220185755A1

公开(公告)日：2022-06-16

申请号：US17433135

申请日：2019-02-22

Applicant: BP P.L.C. ,  BP (CHINA) HOLDINGS LTD

Inventor： Benjamin James DENNIS-SMITHER ,  John Glenn SUNLEY ,  Zhiqiang YANG

IPC: C07C41/09 ,  B01J29/06

Abstract: A process for dehydrating methanol to dimethyl ether product in the presence of a catalyst and a promoter, wherein the catalyst is at least one aluminosilicate zeolite, wherein:—the aluminosilicate zeolite is selected from: (i) a zeolite having a 2-dimensional framework structure comprising at least one channel having a 10-membered ring, and having a maximum free sphere diameter of at least 4.8 Angstroms; (ii) a zeolite having a 3-dimensional framework structure comprising at least one channel having a 10-membered ring; or (iii) a zeolite comprising at least one channel having a 12-membered ring;—the promoter is selected from one or more compounds of Formula I: (I) wherein Y is selected from a C1-C4 hydrocarbyl substituent, and wherein each of X and any or all of the Z's may independently be selected from hydrogen, halide, a substituted or unsubstituted hydrocarbyl substituent, or a compound of the formula —CHO, —CO2R, —COR, or —OR, where R is hydrogen or a substituted or unsubstituted hydrocarbyl substituent, and wherein the molar ratio of promoter to methanol is maintained at less than 1.