Catalytic Alkane Conversion

Patent metadata

Field	Value
Publication number	US-2016279588-A1
Application number	US-201615178923-A
Country	US
Kind code	A1
Filing date	Jun 10, 2016
Priority date	Aug 30, 2013
Publication date	Sep 29, 2016
Grant date	—

Abstract

Disclosed is a hydrocarbon conversion process in which an alkane component is catalytically converted in the presence of an oxygen or oxidizing component (i.e., oxidant). The hydrocarbon conversion process can be an oxidative coupling reaction, which refers to the catalytic conversion of alkane in the presence of oxidant to produce an olefin product, i.e., a composition containing C 2+ olefin. Reverse-flow reactors can be used to carry out the oxidative coupling reaction.

First claim

1 - 28 . (canceled)

29 . A reverse-flow reactor, comprising:
first and second thermal masses, each having first and second portions, the first and second portions together comprising ≧99.0 wt. % of the first or second thermal mass as the case may be, wherein the first and thermal masses each include one or more passages adapted for fluid flow; first, second, third, fourth, and fifth regions, wherein (i) the first and second regions are adjacent, non-overlapping regions, (ii) the third and fourth regions are adjacent, non-overlapping regions, (iii) the first region contains the first portion of the first thermal mass and the second region contains the second portion of the first thermal mass, (iv) the third region contains the first portion of the second thermal mass and the fourth region contains the second portion of the second thermal mass, (v) the fifth region is a non-overlapping region located between the second and third regions, and (vi) the fifth region is adapted for fluid communication between the first and second thermal masses and optionally for fluid mixing; at least one first reaction zone located in the second region, at least one of the reaction zones containing at least one hydrocarbon conversion catalyst, the catalyst being (i) at least one hydrogen transfer catalyst and/or at least one first oxydehydrogenation catalyst, and the hydrocarbon conversion catalyst being in fluid communication with the passages of the first thermal mass; at least one first sorbent zone in the first region, the first sorbent zone containing at least one olefin-selective sorbent that is in fluid communication with the passages of the first thermal mass; at least one second reaction zone located in the third region, at least one of the reaction zones containing at least one second oxydehydrogenation catalyst that is in fluid communication with the passages of the second thermal mass; and at least one second sorbent zone in the fourth region, the second sorbent zone containing at least one olefin-selective sorbent that is in fluid communication with the second thermal mass.

30 . A flow-through reactor for producing olefin, comprising:
(a) reactor vessel configured for fluid-flow; (b) at least one hydrocarbon conversion catalyst located within the reactor vessel, the hydrocarbon conversion catalyst being configured for contact with the fluid-flow and including (i) at least one oxidative coupling catalyst and/or (ii) at least one oxydehydrogenation catalyst; (c) at least one sorbent located in the reactor vessel, the sorbent being selective for olefin sorption and configured for contact with the fluid-flow; and (d) at least one thermal mass located in the reactor vessel, the thermal mass being configured for contact with the fluid-flow, and at least a portion of which is located between the hydrocarbon conversion catalyst and the sorbent.

Assignees

• Exxonmobil Chemical Patents Inc

Inventors

• Keusenkothen Paul F

Classifications

• C07C2/08

  Catalytic processes · CPC title

• C07C5/48

  with oxygen as an acceptor · CPC title

• B01J2219/24

  Stationary reactors without moving elements inside · CPC title

• C07C7/12

  by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers · CPC title

• B01J2208/00548

  Flow · CPC title