Distributor tray with compartments and gas risers of the same shape for an offshore gas/liquid contact column

Patent metadata

Field	Value
Publication number	US-11534699-B2
Application number	US-201816955206-A
Country	US
Kind code	B2
Filing date	Nov 30, 2018
Priority date	Dec 19, 2017
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A distributor tray ( 100 ) for a column for contact between a gas (G) and a liquid (L) is provided wherein the distributor tray has a plurality of compartments defined on one face of the tray by secant partitions ( 104 ) which are perforated ( 105 ) to allow the flow of liquid between adjacent compartments. Each compartment includes at least one passage of the liquid through the tray or a chimney ( 102 ) projecting from the tray for the exclusive passage of the gas (G) through the tray. The shape of the chimney is identical to the shape of the compartment containing it, and the chimney has an internal volume at least equal to the volume of the compartment containing it.

First claim

The invention claimed is:

1. A distributor tray for a column ( 100 , 200 , 300 ) for heat and/or material exchange between a gas (G) and a liquid (L), comprising:
secant partitions ( 104 , 204 , 304 ) delimiting a plurality of compartments ( 103 , 203 , 303 ) on a face of the tray ( 100 , 200 , 300 ), said partitions ( 104 , 204 , 304 ) having perforations ( 105 ) to permit the flow of some liquid between adjacent compartments,
each compartment ( 103 , 203 , 303 ) comprising at least a means for the passage of the liquid through said tray ( 100 , 200 , 300 ) or a chimney ( 102 , 202 , 302 ), or a portion of a chimney, projecting from said face of said tray ( 100 , 200 , 300 ) for the exclusive passage of said gas (G) through said tray ( 100 , 200 , 300 ),
said tray having a plurality of means for the passage of the liquid and a plurality of chimneys ( 102 , 202 , 302 ), and
wherein the shape of said chimney ( 102 , 202 , 302 ), or the portion of the chimney, is identical to the shape of the compartment ( 103 , 203 , 303 ) containing said chimney or the portion of the chimney, and said chimney ( 102 , 202 , 302 ) has an internal volume at least equal to the volume of the compartment ( 103 , 203 , 303 ) containing said chimney or portion thereof.

2. The tray as claimed in claim 1 , wherein each chimney ( 102 , 202 ) occupies a single compartment ( 103 , 203 ).

3. The tray as claimed in claim 1 , wherein each chimney ( 302 ) occupies a plurality of adjacent compartments ( 303 ).

4. The tray as claimed in claim 3 , wherein each chimney ( 302 ) occupies four adjacent compartments ( 303 ).

5. The tray as claimed in claim 1 , wherein the compartments ( 103 , 203 , 303 ) are of the same size and the same shape.

6. The tray as claimed in claim 1 , wherein each chimney ( 102 , 202 , 302 ) is surrounded by at least three compartments ( 103 , 203 , 303 ) adjacent to said chimney ( 102 , 202 , 302 ) between which the liquid (L) flows via the perforated partitions ( 104 , 204 , 304 ).

7. The tray as claimed in claim 1 , wherein each chimney ( 202 , 302 ) is surrounded on all sides by compartments adjacent to said chimney ( 202 , 302 ) between which the liquid (L) flows via the perforated partitions ( 204 , 304 ).

8. The tray as claimed in claim 1 , wherein said partitions ( 104 , 204 , 304 ) are composed of two series of partitions, the partitions of each series being parallel to one another and secant to the partitions of the other series.

9. The tray as claimed in claim 1 , wherein the chimneys ( 102 , 202 , 302 ) have a cross section of square, rectangular, diamond, hexagonal or trapezoidal shape.

10. The tray as claimed in claim 1 , wherein the chimneys ( 102 , 202 , 203 ) are distributed regularly over the face of the tray ( 100 , 200 , 300 ) at a first given pitch.

11. The tray as claimed in claim 1 , wherein said perforations ( 105 ) are located at the bases of said partitions ( 104 , 204 , 304 ).

12. The tray as claimed in claim 1 , wherein said perforations ( 105 ) of two parallel partitions ( 104 , 204 , 304 ) delimiting the same compartment ( 103 , 203 , 303 ) are not aligned.

13. The tray as claimed in claim 1 , wherein said means for the passage of the liquid are orifices located on the tray ( 100 , 200 , 300 ).

14. The tray as claimed in claim 1 , wherein the liquid passage means are chimneys for the passage of the liquid through the tray ( 100 , 200 , 300 ), equipped with at least one perforation, said liquid passage chimneys projecting from a face of said tray ( 100 , 200 , 300 ).

15. The tray as claimed in claim 1 , further comprising a dispersion system located under the other face of said tray, said dispersion system comprising a set of sprinklers or perforated conduits placed parallel to one another.

16. An offshore column ( 1 ) for heat and/or material exchange between a gas and a liquid, comprising at least one gas/liquid contactor ( 7 ) bringing the gas and the liquid into contact, at least a first inlet for the liquid (L SP ), at least a second inlet for the gas (G FA ), at least a first outlet for a gaseous fluid (G FT ) and at least a second outlet for a liquid fluid (L SR ), said column ( 1 ) comprising a distributor tray ( 100 , 200 , 300 ) as claimed in claim 1 to allow the distribution of the liquid over said gas/liquid contactor ( 7 ) and the distribution of the gas.

17. A unit for gas processing or CO 2 capture by scrubbing the gas using an absorbent solution, said absorbent solution containing, notably, amines, said unit comprising at least one offshore column ( 1 ) as claimed in claim 16 , to allow the exchanges between the gas and the absorbent solution.

18. A unit for distillation of a liquid or dehydration of a gas, comprising at least one offshore column ( 1 ) as claimed in claim 16 , to allow the exchanges between the gas and the liquid.

19. An offshore floating barge, notably for the recovery of hydrocarbons, comprising a gas processing and/or CO 2 capture unit as claimed in claim 17 .

20. An offshore floating barge, notably for the recovery of hydrocarbons, comprising a distillation and/or dehydration unit as claimed in claim 18 .

21. The tray as claimed in claim 13 , wherein said orifices located on the tray ( 100 , 200 , 300 ) are distributed regularly in each compartment ( 103 , 203 , 303 ) at a second given pitch.

22. The tray as claimed in claim 21 , wherein said second given pitch is a triangular or square pitch.

23. The tray as claimed in claim 1 , wherein said perforations are present only between adjacent compartments having means for the passage of liquid through the tray.

Assignees

• Ifp Energies Now

Inventors

• Fourati Manel
• Alix Pascal
• Beard Philippe
• Haroun Yacine

Classifications

• B01D3/20

  Bubble caps; Risers for vapour; Discharge pipes for liquid · CPC title

• B01D2258/0283

  Flue gases · CPC title

• B01D53/185

  Liquid distributors · CPC title

• B63J4/00

  Arrangements of installations for treating {ballast water,} waste water, sewage, {sludge, or refuse}, or for preventing environmental pollution not otherwise provided for; ({centrifugal bilge-water separators B04; discharge of refuse, e.g. for ash B63B17/06; arrangements on tanks for fuel or the like for minimizing pollution by accidents B63B17/0036, associated with cargo tanks B63B25/082; vessels for collecting pollution from open water B63B35/30;} soil-water discharges B63B29/16; {treating waste water, sewage, or sludge, in general, C02F; cleaning or keeping clear the surface of open water, in general E02B15/00}) · CPC title

• B01D53/1468

  Removing hydrogen sulfide · CPC title