Plant for absorption of individual components in gases

Patent metadata

Field	Value
Publication number	US-11306643-B2
Application number	US-201916375226-A
Country	US
Kind code	B2
Filing date	Apr 4, 2019
Priority date	Apr 19, 2018
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

A plant for the absorption of individual components, such as pollutants or recyclable materials, in gases, in which an absorption solution is brought into contact with the gas in an absorption chamber, where the absorption solution is fed into the absorption chamber through spray nozzles and the gas can be fed into the absorption chamber from below through a vertical inlet duct, where the inlet duct is covered by a roof structure. The roof structure is made up of a large number of lamellae placed one on top of one another and with spaces in between.

First claim

What is claimed is:

1. A plant ( 1 ) for the absorption of individual components in gases, comprising
an absorption chamber ( 3 ) having a spraying level ( 4 ) with spray nozzles ( 20 ) for feeding an absorption solution into the absorption chamber ( 3 );
a vertical inlet duct ( 5 ) at a lower end of the absorption chamber ( 3 ) beneath the spraying level ( 4 ), the vertical inlet duct ( 5 ) having an opening ( 12 ) with a first width in a first direction covered by a roof structure ( 13 ) with a second width in the first direction, wherein
the second width of the roof structure ( 13 ) is larger than the first width of the inlet opening ( 12 ), thereby preventing the absorption solution from dripping into the inlet opening ( 12 ),
the roof structure ( 13 ) is formed by a plurality of lamellae ( 14 ) positioned one on top of another with space therebetween, and
the lamellae ( 14 ) include an initial section ( 16 ) that is curved in an arched shape to enhance deflection of gas entering the inlet duct ( 5 ).

2. The plant according to claim 1 , wherein the absorption chamber ( 3 ) includes an outer wall ( 10 ) and the lamellae ( 14 ) run on a downward slant toward the outer wall ( 10 ) such that the gas flowing upward through the inlet duct ( 5 ) is deflected downwards on a slant and fed to the absorption chamber ( 3 ) through ducts ( 15 ) defined by the space between the lamellae ( 14 ).

3. The plant according to claim 2 , wherein the lamellae ( 14 ) extend at an angle α relative to a vertical within a range of 50° and 70°.

4. The plant according to claim 3 , wherein the angle α is approximately 60°.

5. The plant according to claim 2 , wherein a length y of the ducts ( 15 ) formed between the lamellae ( 14 ) is greater than a spacing x between the lamellae ( 14 ) that form the ducts ( 15 ).

6. The plant according to claim 5 , wherein a ratio of length of the ducts to spacing between respective lamellae (y:x) is within an approximate range of 2:1 to 8:1.

7. The plant according to claim 6 , wherein the ratio of y:x is within an approximate range of 3:1 to 6:1.

8. The plant according to claim 1 , wherein the roof is angled upwardly and includes sides inclined at a pitch angle β within a range of 140° and 170° relative to a vertical.

9. The plant according to claim 8 , wherein the pitch angle β is approximately 155°.

10. The plant according to claim 1 , wherein the lamellae ( 14 ) form a pyramidal roof structure ( 13 ).

11. The plant according to claim 1 , wherein the lamellae ( 14 ) form a conical roof structure ( 13 ).

12. The plant according to claim 1 , wherein a gas distribution level ( 7 ) is disposed in the absorption chamber ( 3 ) above the roof structure ( 13 ) and generates turbulence in gas flow fed into the absorption chamber ( 3 ) from the inlet duct ( 5 ).

13. A plant ( 1 ) for the absorption of individual components in gases, comprising
a longitudinally extending absorption chamber ( 3 ) having a spraying level ( 4 ) with spray nozzles ( 20 ) for feeding an absorption solution into the absorption chamber ( 3 );
an inlet duct ( 5 ) at a position upstream of the spraying level ( 4 ), the inlet duct ( 5 ) having an opening ( 12 ) with a first periphery covered by a roof structure ( 13 ) with a second periphery that extends beyond the first periphery of the opening ( 12 ), thereby preventing the absorption solution from dripping into the inlet opening ( 12 ), and
the roof structure ( 13 ) is formed by a plurality of spaced apart lamellae ( 14 ), a flow duct ( 15 ) being defined by the spacing between each adjacent spaced apart lamellae ( 14 ) for flow of gas from the inlet duct ( 5 ) into the absorption chamber ( 3 ), wherein
the lamellae ( 14 ) include an initial section ( 16 ) that is curved in an arched shape to enhance deflection of gas entering the inlet duct ( 5 ).

14. The plant according to claim 13 , wherein the one or both of the first periphery and the second periphery has a rectangular shape.

15. The plant according to claim 13 , wherein the flow ducts ( 15 ) have a length y and lamellae ( 14 ) are spaced apart a distance x that is less than the length y.

16. The plant according to claim 15 , wherein a ratio of length of the ducts to spacing between respective lamellae (y:x) is within an approximate range of 2:1 to 8:1.

17. The plant according to claim 16 , wherein the ratio of y:x is within an approximate range of 3:1 to 6:1.

18. A plant ( 1 ) for the absorption of individual components, such as pollutants or recyclable materials in gases, comprising
a longitudinally extending absorption chamber ( 3 ) having a spraying level ( 4 ) with spray nozzles ( 20 ) for feeding an absorption solution into the absorption chamber ( 3 );
an inlet duct ( 5 ) at a position upstream of the spraying level ( 4 ), the inlet duct ( 5 ) having an opening ( 12 ) with a first periphery covered by a roof structure ( 13 ) with a second periphery that extends beyond the first periphery of the opening ( 12 ), thereby preventing the absorption solution from dripping into the inlet opening ( 12 ), and
the roof structure ( 13 ) is formed by a plurality of spaced apart lamellae ( 14 ), a flow duct ( 15 ) being defined by the spacing between each adjacent spaced apart lamellae ( 14 ) for flow of gas from the inlet duct ( 5 ) into the absorption chamber ( 3 ), wherein
the lamellae ( 14 ) include an initial section ( 16 ) that runs upward vertically and then curves in an arched shape to enhance deflection of the gas.

19. The plant according to claim 18 , wherein a gas distribution level ( 7 ) is disposed in the absorption chamber ( 3 ) above the roof structure ( 13 ) and generates turbulence in gas flow fed into the absorption chamber ( 3 ) from the inlet duct ( 5 ).

20. The plant according to claim 19 , wherein a ratio of length of the ducts to spacing between respective lamellae (y:x) is within an approximate range of 3:1 to 6:1.

Assignees

• Andritz Ag Maschf

Inventors

• Koller Martin
• Gurker Thomas
• Dunkl Bernhard

Classifications

• F01N13/085 Primary

  having means preventing foreign matter from entering exhaust conduit · CPC title

• F23J15/04

  using washing fluids {(scrubbers for removing solids only F23J15/022)} · CPC title

• B01D53/46

  Removing components of defined structure · CPC title

• B01D53/02

  by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)} · CPC title

• B01D53/18 Primary

  Absorbing units; Liquid distributors therefor (B01D3/16, B01D3/26, B01D3/30 take precedence; packing elements B01J19/30, B01J19/32) · CPC title