公开(公告)号：US20210040014A1

公开(公告)日：2021-02-11

申请号：US16928877

申请日：2020-07-14

Applicant: ExxonMobil Research and Engineering Company

Inventor： Vinit Choudhary ,  Doron Levin ,  Matthew S. Mettler ,  Joshua W. Allen

IPC: C07C2/76 ,  B01J29/70 ,  C10L10/10 ,  C10L1/16

Abstract: The present disclosure relates to processes for the alkylation of isoparaffins. A process may include introducing, in a multistage reactor, a solid acid catalyst to an isoparaffin feed and an olefin feed at a pressure of about 300 psig to about 1500 psig to form a alkylation product mixture. A process may also include solid acid catalyst that includes a crystalline microporous material of the MWW framework type. In yet other embodiments, the present disclosure provides for processes for the alkylation of an isoparaffin. A process may include introducing, in a multistage reactor, a solid acid catalyst to an isoparaffin feed and an olefin feed at a temperature of from about 100° C. to about 200° C. to form an alkylation product mixture. A process may further include a solid acid catalyst that includes a crystalline microporous material of the MWW framework type.

公开(公告)号：US10287230B2

公开(公告)日：2019-05-14

申请号：US15829008

申请日：2017-12-01

Applicant: ExxonMobil Research and Engineering Company

Inventor： Michael P. Lanci ,  Joshua W. Allen ,  Jarid M. Metz ,  Victor DeFlorio ,  Jihad M. Dakka ,  Bryan A. Patel ,  Michael Salciccioli ,  Michael W. Weber ,  Stephen Zushma

IPC: C07C57/30 ,  C07C67/05 ,  C07C25/13 ,  C07C47/23 ,  B01J31/04 ,  C07C51/265 ,  C07C51/16 ,  C07C67/08

Abstract: A process for selective oxidation of dimethyl-1,1′-biphenyl(s) to form methyl-1,1′-biphenyl mono-carboxylic acid(s), which can be esterified to form plasticizers, comprising contacting a solution of dimethyl-1,1′-biphenyl(s) in acetic acid in the presence of an oxidation catalyst and air under time and temperature conditions sufficient to oxidize the dimethyl-1,1′-biphenyl(s) into one or more methyl-1,1′-biphenyl mono-carboxylic acid(s) products, conducting at least one of (i) adding an antisolvent, or (ii) optimizing a total conversion of dimethyl-1,1′-biphenyl(s) by oxidation based upon a molar ratio of dimethyl-1,1′-biphenyl isomers, or (iii) precipitating the methyl-1,1′-biphenyl mono-carboxylic acid(s) products by lowering the temperature, or (iv) decreasing the oxidation reaction temperature to enhance conversion of aldehydes over methyl functional groups, so as to limit over-oxidation of the dimethyl-1,1′-biphenyl(s), wherein the oxidation reaction is conducted in the absence of bromide-containing catalysts.

公开(公告)号：US10577243B2

公开(公告)日：2020-03-03

申请号：US15343778

申请日：2016-11-04

Applicant: ExxonMobil Research and Engineering Company

Inventor： Matthew S. Ide ,  John F. Brody ,  Jianxin Wu ,  Joshua W. Allen ,  Frank Hershkowitz ,  Arsam Behkish ,  Anastasios I. Skoulidas

IPC: C01B3/40 ,  B01J23/10 ,  B01J23/46 ,  B01J23/63 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  B01J37/08 ,  B01J38/02 ,  B01J23/89 ,  B01J8/04 ,  B01J23/83 ,  B01J35/00 ,  B01J37/00 ,  C01B3/46

Abstract: A reforming catalyst with improved surface area is provided by using high surface area alumina doped with a stabilizer metal as a catalyst support. The surface area of the catalyst can be higher than a typical reforming catalyst, and the surface area can also be maintained under high temperature operation. This can allow use of the catalyst for reforming in a higher temperature environment while maintaining a higher surface area, which can allow for improved dispersion and/or activity of an active metal such as rhodium on the catalyst support. The catalyst can be suitable for production of syngas from natural gas or other hydrocarbon-containing feeds.

公开(公告)号：US20180282241A1

公开(公告)日：2018-10-04

申请号：US16002206

申请日：2018-06-07

Applicant: ExxonMobil Research and Engineering Company

Inventor： Vinit Choudhary ,  Jihad Dakka ,  Matthew S. Mettler ,  Ivy D. Johnson ,  Joshua W. Allen ,  Ajit B. Dandekar ,  Cynthia F. Omilian

IPC: C07C2/58 ,  B01J29/70 ,  C10L10/10 ,  B01J37/00 ,  C07C2/62 ,  C10L1/16 ,  B01J37/06 ,  B01J37/08 ,  C07C9/16 ,  C07C9/21

Abstract: In a process for the catalytic alkylation of an olefin with an isoparaffin, an olefin-containing feed is contacted with an isoparaffin-containing feed under alkylation conditions in the presence of a solid acid catalyst comprising a crystalline microporous material of the MWW framework types, wherein the olefin-containing feed consists essentially of pentenes.

公开(公告)号：US20210040013A1

公开(公告)日：2021-02-11

申请号：US16928850

申请日：2020-07-14

Applicant: ExxonMobil Research and Engineering Company

Inventor： Doron Levin ,  Vinit Choudhary ,  Matthew S. Mettler ,  Joshua W. Allen

IPC: C07C2/62 ,  C07C7/13 ,  C07C7/04 ,  B01J19/24

Abstract: The present disclosure is related to processes for the alkylation of an isoparaffin. The process may include introducing, in a multistage reactor, a solid acid catalyst including a zeolite to an isoparaffin feed and an olefin feed to form an alkylation product mixture including C5+ olefins. The processes may further include separating at least a portion of the C5+ olefins from the alkylation product mixture to form an oligomer light stream. The present disclosure further relates to multistage reactors for the alkylation of an isoparaffin with an olefin. The multistage reactors may include a plurality of stages, and a plurality of separation systems. The multistage reactors may also include an outlet space coupling each stage to a separation system and an inlet space coupling a separation system to a subsequent stage.

公开(公告)号：US10322991B2

公开(公告)日：2019-06-18

申请号：US15829060

申请日：2017-12-01

Applicant: ExxonMobil Research and Engineering Company

Inventor： Michael P. Lanci ,  Joshua W. Allen ,  Jarid M. Metz ,  Victor DeFlorio ,  Jihad M. Dakka ,  Bryan A. Patel ,  Michael Salciccioli ,  Michael W. Weber ,  Stephen Zushma

IPC: B01J31/04 ,  C07C25/13 ,  C07C47/23 ,  C07C51/16 ,  C07C57/30 ,  C07C67/05 ,  C07C67/08 ,  C07C51/265 ,  C07C63/331 ,  C07C63/333

Abstract: A process for selective oxidation of dimethyl-1,1′-biphenyl to form methyl-1,1′-biphenyl mono-carboxylic acid(s), comprising contacting a solution of dimethyl-1,1′-biphenyl in acetic acid solvent in the presence of a Co(II) acetate catalyst and air, and optionally adding a co-solvent, or adding sodium or potassium acetate, and oxidizing the dimethyl-1,1′-biphenyl under time and temperature conditions sufficient to form one or more methyl-1,1′-biphenyl mono-carboxylic acid(s). The mono-carboxylic acids are advantageously isolated and esterified to form biphenyl mono-esters for use as plasticizers.