Hydrogenation reactor and process

Patent metadata

Field	Value
Publication number	US-2016214913-A1
Application number	US-201414916377-A
Country	US
Kind code	A1
Filing date	Aug 29, 2014
Priority date	Sep 6, 2013
Publication date	Jul 28, 2016
Grant date	—

Abstract

A reactor and process for removing unsaturated alkynes and diolefinic impurities from olefins and oxygenates is described.

First claim

1 . A reactor suitable for use in a hydrogenation process, the reactor comprising:
a. a catalyst bed comprising a tube for cooling the catalyst bed; b. a plurality of inlets for conveying a feed material to the catalyst bed; and c. one or more outlets, wherein the catalyst bed comprises a catalyst having a surface area of from about 15 m 2 /g to about 650 m 2 /g, and wherein the reactor can provide a space velocity of from about 500/h to about 50,000/h for hydrogenation reactions.

2 . The reactor of claim 1 , further comprising one or more distributors for distributing the feed material uniformly or substantially uniformly across the catalyst bed.

3 . The reactor of claim 1 , wherein the catalyst bed is a fixed bed comprising a selective hydrogenation catalyst.

4 . The reactor of claim 1 , wherein the catalyst bed is positioned in contact with one or more catalyst bed supports.

5 . The reactor of claim 1 , being a hydrogenation reactor comprising a plurality of inlets for an olefin feed, an oxygenate feed, or a combination thereof.

6 . The reactor of claim 1 , further comprising a drip trap for recovering a condensate and/or a green oil.

7 . The reactor of claim 1 , further comprising one or more thermowells disposed between an exterior surface of the reactor and the catalyst bed.

8 . (canceled)

9 . (canceled)

10 . (canceled)

11 . The reactor of claim 1 , wherein the catalyst has a surface area of from about 30 m 2 /g to about 650 m 2 /g.

12 . The reactor of claim 1 , having a space velocity of at least about 25,000/h.

13 . The reactor of claim 1 , having a high space velocity, a low pressure drop, a uniform distribution of feed material across the catalyst bed, or a combination thereof, as compared to a conventional hydrogenation and/or dehydrogenation reactor.

14 . A reactor system comprising a plurality of the reactors of claim 1 , arranged in a series configuration.

15 . A reactor system comprising a plurality of the reactors of claim 1 , arranged in a parallel configuration.

16 . (canceled)

17 . (canceled)

18 . (canceled)

19 . A method for a hydrogenation process, the method comprising introducing a feed material to the reactor of claim 1 through the plurality of inlets, such that the feed material uniformly or substantially uniformly contacts the catalyst bed to produce a hydrogenation reaction product.

20 . The method of claim 19 , wherein the feed material comprises acetylene, and wherein the reaction product comprises an alkene.

21 . (canceled)

22 . (canceled)

23 . (canceled)

24 . The method of claim 19 , wherein the reactor exhibits a pressure drop of from about 0.05 to about 100 bar.

25 . (canceled)

26 . The method of claim 19 , wherein the reactor provides improved control over runaway reactions, as compared to a conventional reactor.

27 . (canceled)

28 . The method of claim 19 , wherein a plurality of reactors are connected in a series configuration to provide a front-end acetylene removal system.

29 . (canceled)

30 . The method of claim 19 , wherein a plurality of reactors are connected in a parallel configuration to provide a back-end acetylene removal system.

Assignees

• Saudi Basic Ind Corp

Inventors

• Nawaz Zeeshan
• Baksh Faisal

Classifications

• B01J8/008 Primary

  Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction (B01J8/0285, B01J8/067, B01J8/087, B01J8/1836 take precedence) · CPC title

• C07C5/09

  to carbon-to-carbon double bonds · CPC title

• B01J8/0278 Primary

  Feeding reactive fluids (for solid material B01J8/0015) · CPC title

• B01J2208/00938

  Flow distribution elements · CPC title

• B01J8/0492

  Feeding reactive fluids (for solid material, see B01J8/0015) · CPC title