公开(公告)号：US10138197B2

公开(公告)日：2018-11-27

申请号：US15904581

申请日：2018-02-26

Applicant: ExxonMobil Research and Engineering Company

Inventor： Partha Nandi ,  Steven L. Suib ,  Timothy D. Shaffer

IPC: C07C51/285 ,  C07C51/25 ,  B01J23/34

Abstract: This disclosure describes a new route to acrylate esters via direct catalytic partial oxidation of allyl ether using heterogeneous manganese oxide catalysts. The method involves forming allyl acrylate by contacting allyl ether, where the allyl ether is in solution with a solvent, with one or more oxidants in the presence of a mesoporous manganese oxide (MnOx) catalyst. Oxygen or peroxide can be used as the oxidant. The yield of and selectivity for acrylate ester can be very high, and process efficiency is improved over current processes.

公开(公告)号：US20210331992A1

公开(公告)日：2021-10-28

申请号：US17236496

申请日：2021-04-21

Applicant: ExxonMobil Research and Engineering Company

Inventor： Partha Nandi ,  Steven L. Suib

IPC: C07C29/50 ,  B01J27/24 ,  B01J3/00

Abstract: Systems and methods are provided for direct conversion of methane and/or ethane to methanol. The methods can include exposing methane to an oxidant, such as O2, in a solvent at conditions that are supercritical for the solvent while having a temperature of 310° C. or less, or about 300° C. or less, or about 290° C. or less. The solvent can correspond to an electron donor solvent that, when in a supercritical state, can complex with O2. By forming a complex with the O2, the supercritical electron donor solvent can facilitate conversion of alkane to methanol at short residence times while reducing or minimizing further oxidation of the methanol to other products.

公开(公告)号：US10851036B2

公开(公告)日：2020-12-01

申请号：US16203920

申请日：2018-11-29

Applicant: ExxonMobil Research and Engineering Company

Inventor： Partha Nandi ,  Steven L. Suib ,  Sumathy Raman

IPC: C07C29/50 ,  C07C29/52

Abstract: Systems and methods are provided for direct methane conversion to methanol. The methods can include exposing methane to an oxidant, such as O2, in a solvent at conditions that are substantially supercritical for the solvent while having a temperature of about 310° C. or less, or about 300° C. or less, or about 290° C. or less. The solvent can correspond to an electron donor solvent that, when in a supercritical state, can complex with O2. By forming a complex with the O2, the supercritical electron donor solvent can facilitate conversion of methane to methanol at short residence times while reducing or minimizing further oxidation of the methanol to other products.