Method for dividing fluid streams

Patent metadata

Field	Value
Publication number	US-10143987-B2
Application number	US-54426709-A
Country	US
Kind code	B2
Filing date	Aug 20, 2009
Priority date	Aug 27, 2008
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

One or more fluid streams are uniformly divided into two or more partial fluid streams in chemical apparatuses in a manner such that there is a reduced tendency to form deposits. Division of such stream(s) is achieved by using a distributor device that includes at least one plate having two or more openings which openings are rounded or chamfered on at least one side.

First claim

What is claimed is:

1. A method for dividing a fluid stream into uniform portions of the stream in a chemical apparatus comprising:
a) passing at least one fluid stream into a distributor device located in the chemical apparatus comprising:
(i) at least one plate having 100 to 5000 openings, the openings being rounded on at least one side of the plate in a manner such that the two or more uniform portions of the stream form,

and
b) causing the fluid streams formed to exit the distributor device
wherein the fluid streams are liquid fluid streams in which at least one substance is present in dissolved and/or suspended form and the distributor device reduces the formation of deposits in the chemical apparatus of the substances dissolved or suspended in the liquid stream, and
wherein the openings are rounded to an extent such that a partial circle thus formed has a radius R smaller than the plate's thickness.

2. The method of claim 1 in which the partial fluid streams flow with a Reynolds number of ≤1 on leaving the openings.

3. The method of claim 1 , wherein the chemical apparatus is an apparatus in which a chemical reaction or heat transfer takes place and is a reactor, a tubular heat exchanger or a cylindrical column.

4. The method of claim 1 , wherein the chemical apparatus is a reactor or a tubular heat exchanger.

5. A distributor device comprising at least one plate having 100 to 5000 openings that are rounded on at least one side of the plate,
wherein the distributor device is positioned within a chemical apparatus and divides a fluid stream into two or more uniform fluid portions of the stream, wherein the fluid stream is a liquid fluid stream in which at least one substance is present in dissolved and/or suspended form and the distributor device reduces formation of deposits in the chemical apparatus of substances dissolved or suspended in the stream, and
wherein the openings are rounded to an extent such that a partial circle thus formed has a radius R smaller than the plate's thickness.

6. The device of claim 5 , wherein the chemical apparatus is an apparatus in which a chemical reaction or heat transfer takes place and is a reactor, a tubular heat exchanger or a cylindrical column.

7. The device of claim 5 , wherein the chemical apparatus is a reactor or a tubular heat exchanger.

8. The method of claim 1 , wherein the openings in the plate are in the form of holes or slots.

9. The device of claim 5 , wherein the openings in the plate are in the form of holes or slots.

Assignees

• Keggenhoff Berthold
• Bolton Jeffrey
• Steffens Friedhelm
• Seekamp Marc
• Ruffert Gerhard
• Kern Juergen
• Runowski Thomas
• Covestro Deutschland Ag

Inventors

• Keggenhoff Berthold
• Bolton Jeffrey
• Steffens Friedhelm
• Seekamp Marc
• Ruffert Gerhard
• Kern Jürgen
• Runowski Thomas

Classifications

• B01J2208/00707

  Fouling · CPC title

• F26B3/082

  arrangements of devices for distributing fluidising gas, e.g. grids, nozzles (F26B3/0926 takes precedence; such devices per se B01J8/44) · CPC title

• Y10T137/85938

  Non-valved flow dividers · CPC title

• B01J8/44 Primary

  Fluidisation grids · CPC title

• B01D3/008

  Liquid distribution · CPC title