Distributor and down flow catalytic reactor comprising same

Patent metadata

Field	Value
Publication number	US-2018229199-A1
Application number	US-201615749698-A
Country	US
Kind code	A1
Filing date	Aug 23, 2016
Priority date	Aug 28, 2015
Publication date	Aug 16, 2018
Grant date	—

Abstract

The present invention relates to a distributor and a down flow catalytic reactor comprising same, and according to one aspect of the present invention, provides a distributor comprising: an inside downcomer which has a first flow space; an outside downcomer which is disposed so as to surround at least some area of the inside downcomer, and has a second flow space partitioned from the first flow space of the inside downcomer; and a cap which has a plurality of slots and is mounted on the inside or the outside downcomer so as to enable a fluid that has passed through the slots to flow to at least one flow space among the first flow space and the second flow space.

First claim

1 . A distributor comprising an inside downcomer which has a first flow space;
an outside downcomer which is disposed so as to surround at least some area of the inside downcomer and has a second flow space partitioned from the first flow space of the inside downcomer; and a cap which has a plurality of slots and is mounted on said inside or outside downcomer so that a fluid passing through the slots can flow into at least one flow space among the first flow space and the second flow space.

2 . The distributor according to claim 1 , wherein
the distributor is provided so that the inside downcomer has a first diameter and a first height, and the outside downcomer has a second diameter larger than the first diameter and a second height lower than the first height.

3 . The distributor according to claim 1 , wherein
the distributor comprises a first fixing element for fixing the cap and the inside downcomer, and the first fixing element is provided so as to fix the cap and the inside downcomer in a spaced state.

4 . The distributor according to claim 1 , wherein
the distributor comprises a second fixing element for fixing the inside downcomer and the outside downcomer, and the second fixing element is provided so as to fix the inside downcomer and the outside downcomer in a spaced state.

5 . The distributor according to claim 1 , wherein
the inside downcomer and the outside downcomer have each a hollow cylinder shape, and are disposed such that each center axis is coaxially positioned.

6 . The distributor according to claim 1 , wherein
the cap is disposed to surround the outside downcomer and at least some area of the inside downcomer, respectively.

7 . A down flow catalytic reactor comprising a housing having an inlet;
a dispersion tray disposed inside said housing and having a plurality of flow holes; and a plurality of distributors mounted on said dispersion tray, wherein each distributor comprises an inside downcomer which has a first flow space; an outside downcomer which is disposed so as to surround at least some area of the inside downcomer and has a second flow space partitioned from the first flow space of the inside downcomer; and a cap which has a plurality of slots and is mounted on said inside or outside downcomer so that a fluid passing through the slots can flow into at least one flow space among the first flow space and the second flow space.

8 . The down flow catalytic reactor according to claim 7 , wherein
the down flow catalytic reactor is provided so that the inside downcomer has a first diameter and a first height, and the outside downcomer has a second diameter larger than the first diameter and a second height lower than the first height.

9 . The down flow catalytic reactor according to claim 7 , wherein
the inside downcomer is disposed to penetrate the dispersion tray, and the outside downcomer is mounted to the dispersion tray.

10 . The down flow catalytic reactor according to claim 7 , wherein
the inside downcomer is disposed so that the height of the inside downcomer positioned on the dispersion tray is higher than the height of the outside downcomer.

11 . The down flow catalytic reactor according to claim 10 , wherein
said slots are formed along the height direction of the cap, and said slots are provided to be opened from the lower end of said cap to a height between the inside downcomer and the outside downcomer.

12 . The down flow catalytic reactor according to claim 7 , wherein
said distributor has a first flow channel connecting the slot and the first flow space and a second flow channel connecting the slot and the second flow space.

13 . The down flow catalytic reactor according to claim 12 , wherein
the first flow channel is formed to be longer than the length of the second flow channel, based on a specific position of the slot.

14 . The down flow catalytic reactor according to claim 12 , wherein
when a liquid-gas mixture is supplied into the housing and the liquid level on the dispersion tray is lower than the height of the outside downcomer, the gas flows down the dispersion tray through at least one of the first flow channel and the second flow channel

15 . The down flow catalytic reactor according to claim 12 , wherein
when a liquid-gas mixture is supplied into the housing and the liquid level on the dispersion tray is higher than the height of the outside downcomer, the gas flows down the dispersion tray through the first flow channel and the liquid flows down the dispersion tray through the second flow channel.

16 . The down flow catalytic reactor according to claim 7 , wherein
the down flow catalytic reactor comprises a plurality of first fixing elements for fixing the cap and the inside downcomer, and the first fixing element is provided so as to fix the cap and the inside downcomer in a spaced state.

17 . The down flow catalytic reactor according to claim 7 , wherein
the down flow catalytic reactor comprises a plurality of second fixing elements for fixing the inside downcomer and the outside downcomer, and the second fixing element is provided so as to fix the inside downcomer and the outside downcomer in a spaced state.

18 . The down flow catalytic reactor according to claim 7 , wherein
the inside downcomer and the outside downcomer have each a hollow cylinder shape, and are disposed such that each center axis is coaxially positioned.

19 . A down flow catalytic reactor comprising a housing having an inlet, a dispersion tray disposed inside said housing and having a plurality of flow holes and a plurality of distributors mounted on said dispersion tray, wherein
each distributor comprises an inside downcomer which has a first flow space; an outside downcomer which is disposed so as to surround at least some area of the inside downcomer and has a second flow space partitioned from the first flow space of the inside downcomer; and a cap which has a plurality of slots and is mounted on said inside or outside downcomer so that a fluid passing through the slots can flow into at least one flow space among the first flow space and the second flow space, and wherein when a liquid-gas mixture is supplied into the housing, the gas passing through the slots flows into the first flow space and the gas or the liquid passing through the slots depending on the liquid level on the dispersion tray flows into the second flow space.

Assignees

• Lg Chemical Ltd

Inventors

• Lee Jun Young
• Song Young Soo
• Im Ye Hoon

Classifications

• B01J2208/00938

  Flow distribution elements · CPC title

• B01J4/00

  Feed {or outlet} devices; Feed or outlet control devices (feed or outlet devices for pressure vessels B01J3/02 {; feeding of particles into and evacuation of particles out of the reactor B01J8/0015}) · CPC title

• B01J19/26

  Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles · CPC title

• B01J8/02

  with stationary particles, e.g. in fixed beds · CPC title

• B01J8/025

  in a cylindrical shaped bed · CPC title