Wet scrubber tower with plates between nozzles for wet flue gas desulphurisation and particulate matter removal

1. A wet flue gas desulphurisation system ( 12 ) comprising:

a wet scrubber tower ( 16 ),

an at least first spray level arrangement ( 34 ) equipped with a plurality of nozzles ( 40 ), arranged within the wet scrubber tower ( 16 ) above a flue gas inlet ( 24 ), and

a plurality of plates ( 76 , 76 A, 82 ) arranged between the plurality of nozzles ( 40 ) of the at least first spray level arrangement ( 34 ) directing flue gas from the flue gas inlet ( 24 ) into an absorbent liquid or slurry dispersed by the plurality of nozzles ( 40 ) to reduce flue gas sulphur oxides;

wherein the plurality of plates ( 76 , 76 A, 82 ) comprises single plates ( 76 ) arranged in pairs ( 77 ), with each of the single plates ( 76 ) arranged with an upstream edge ( 78 ) relatively distanced one from another and a downstream edge ( 80 ) in relatively close proximity one to another.

2. The system ( 12 ) of claim 1 , wherein the plurality of nozzles ( 40 ) of the at least first spray level arrangement ( 34 ) spray absorbent liquid or slurry downwardly, upwardly, and/or downwardly and upwardly.

3. The system ( 12 ) of claim 1 , wherein the plurality of nozzles ( 40 ) of the at least first spray level arrangement ( 34 ) may spray in a like direction, in a differing direction, or in a like and a differing direction from that of a plurality of nozzles ( 40 ) of a second spray level arrangement ( 36 ).

4. The system ( 12 ) of claim 1 , wherein the plurality of plates ( 76 , 76 A, 82 ) comprises single plates ( 76 ) arranged in pairs ( 77 ), with a first single plate ( 76 ) of a pair ( 77 ) having a plane (P) with a positive angle (α+) of about 0 degrees to about 60 degrees, and a second single plate ( 76 ) of the pair ( 77 ) having a plane (P 2 ) with a negative angle (α−) of about 0 degrees to about 60 degrees.

5. The system ( 12 ) of claim 1 , wherein the plurality of plates ( 76 , 76 A, 82 ) comprises double plates ( 82 ) arranged with a first portion ( 88 ) having a plane (P 3 ) with a positive angle (α+) of about 0 degrees to about 60 degrees and a first upstream edge ( 84 ) relatively distanced from a second upstream edge ( 84 ) of a second portion ( 88 A) having a plane (P 4 ) with a negative angle (α−) of about 0 degrees to about 60 degrees, with the first portion ( 88 ) and the second portion ( 88 A) joined at a downstream apex ( 86 ).

6. The system ( 12 ) of claim 1 , wherein the plurality of plates ( 76 , 76 A, 82 ) comprises double plates ( 82 ) arranged with a first portion ( 88 ) having a plane (P 3 ) with a positive angle (α+) of about 0 degrees to about 60 degrees and a first downstream edge ( 92 ) relatively distanced from a second downstream edge ( 92 ) of a second portion ( 88 A) having a plane (P 4 ) with a negative angle (α−) of about 0 degrees to about 60 degrees, with the first portion ( 88 ) and the second portion ( 88 A) joined at an upstream apex ( 90 ).

7. The system ( 12 ) of claim 1 , wherein the plurality of plates ( 76 , 76 A, 82 ) comprises single plates ( 76 ) arranged in pairs ( 77 ), with a first single plate ( 76 ) of a pair ( 77 ) having a plane (P) with a positive angle (α+) of about 0 degrees to about 60 degrees, and a second single plate ( 76 ) of the pair ( 77 ) having a plane (P 2 ) with a negative angle (α−) of about 0 degrees to about 60 degrees, and double plates ( 82 ) arranged downstream of each pair ( 77 ) of single plates ( 76 ) with the double plates ( 82 ) arranged with a first portion ( 88 ) having a plane (P 3 ) with a positive angle (α+) of about 0 degrees to about 60 degrees and a first downstream edge ( 78 ) relatively distanced from a second downstream edge ( 78 ) of a second portion ( 88 A) having a plane (P 4 ) with a negative angle (α−) of about 0 degrees to about 60 degrees, with the first portion ( 88 ) and the second portion ( 88 A) joined at an upstream apex ( 86 ).

8. The system ( 12 ) of claim 1 , wherein the plurality of plates ( 76 , 76 A, 82 ) are positioned at a same vertical location as the plurality of nozzles ( 40 ).

9. A method of wet flue gas desulphurisation of a flue gas comprising sulphur oxides comprising:

equipping a wet scrubber tower ( 16 ) with an at least first spray level arrangement ( 34 ) comprising a plurality of nozzles ( 40 ), above a flue gas inlet ( 24 ), and

arranging a plurality of plates ( 76 , 76 A, 82 ) between the plurality of nozzles ( 40 ) of the at least first spray level arrangement ( 34 ) to direct flue gas from the flue gas inlet ( 24 ) into an absorbent liquid or slurry dispersed by the plurality of nozzles ( 40 ) to reduce flue gas sulphur oxides;

wherein the plurality of plates ( 76 , 76 A, 82 ) comprises single plates ( 76 ) arranged in pairs ( 77 ), with each of the single plates ( 76 ) arranged with an upstream edge ( 78 ) relatively distanced one from another and a downstream edge ( 80 ) in relatively close proximity one to another.

10. The method of claim 9 , wherein the plurality of nozzles ( 40 ) of the at least first spray level arrangement ( 34 ) may spray absorbent liquid or slurry downwardly, upwardly, and/or downwardly and upwardly.

11. The method of claim 9 , wherein the plurality of nozzles ( 40 ) of the at least first spray level arrangement ( 34 ) may spray in a like direction, in a differing direction, or in a like and a differing direction from that of a plurality of nozzles ( 40 ) of a second spray level arrangement ( 36 ).

12. The method of claim 9 , wherein the plurality of plates ( 76 , 76 A, 82 ) comprises single plates ( 76 ) arranged in pairs ( 77 ), with a first single plate ( 76 ) of a pair ( 77 ) having a plane (P) with a positive angle (α+) of about 0 degrees to about 60 degrees, and a second single plate ( 76 ) of the pair ( 77 ) having a plane (P 2 ) with a negative angle (α−) of about 0 degrees to about 60 degrees.

13. The method of claim 9 , wherein the plurality of plates ( 76 , 76 A, 82 ) comprises double plates ( 82 ) arranged with a first portion ( 88 ) having a plane (P 3 ) with a positive angle (α+) of about 0 degrees to about 60 degrees and a first upstream edge ( 84 ) relatively distanced from a second upstream edge ( 84 ) of a second portion ( 88 A) having a plane (P 4 ) with a negative angle (α−) of about 0 degrees to about 60 degrees, with the first portion ( 88 ) and the second portion ( 88 A) joined at a downstream apex ( 86 ).

14. The method of claim 9 , wherein the plurality of plates ( 76 , 76 A, 82 ) comprises double plates ( 82 ) arranged with a first portion ( 88 ) having a plane (P 3 ) with a positive angle (α+) of about 0 degrees to about 60 degrees and a first downstream edge ( 92 ) relatively distanced from a second downstream edge ( 92 ) of a second portion ( 88 A) having a plane (P 4 ) with a negative angle (α−) of about 0 degrees to about 60 degrees, with the first portion ( 88 ) and the second portion ( 88 A) joined at an upstream apex ( 90 ).

15. The method of claim 9 , wherein the plurality of plates ( 76 , 76 A, 82 ) are positioned at a same vertical location as the plurality of nozzles ( 40 ).

16. A wet flue gas desulphurisation system ( 12 ) comprising:

a wet scrubber tower ( 16 ),

an at least first spray level arrangement ( 34 ) equipped with a plurality of nozzles ( 40 ), arranged within the wet scrubber tower ( 16 ) above a flue gas inlet ( 24 ), and

a plurality of plates ( 76 , 76 A, 82 ) arranged between the plurality of nozzles ( 40 ) of the at least first spray level arrangement ( 34 ) directing flue gas from the flue gas inlet ( 24 ) into an absorbent liquid or slurry dispersed by the plurality of nozzles ( 40 ) to reduce flue gas sulphur oxides;

wherein the plurality of plates ( 76 , 76 A, 82 ) are positioned at a same vertical location as the plurality of nozzles ( 40 ).