公开(公告)号：US20150367282A1

公开(公告)日：2015-12-24

申请号：US14312984

申请日：2014-06-24

Applicant: ALSTOM Technology Ltd

Inventor： Nabil Elias RAFIDI

IPC: B01D53/79 ,  B01D53/18

CPC classification number: B01D53/79 ,  B01D53/185 ,  B01D53/504 ,  B01D53/505 ,  B05B7/10 ,  B05B15/55 ,  F26B3/12

Abstract: A spray dryer disperser 24, 26, 28, 30 is described for use in a spray dryer absorption (SDA) system 18 for flue gas FG impurity reduction. As such, the spray dryer disperser 24, 26, 28, 30 disperses absorbent liquid or reagent slurry droplets into contact with a hot flue gas FG stream containing gaseous impurities to produce a flue gas FG stream of reduced impurity content and dry powder end products EP. The spray dryer disperser 24, 26, 28, 30 is useful in larger capacity SDA vessels 22 of approximately 12 to 22 meters in diameter or larger, to avoid disperser 24, 26, 28, 30 shroud 34a scale deposits, to avoid reagent slurry spray cloud suppression, to avoid vessel 22 wall 22b scale deposits and to achieve increased droplet rotational momentum for increased droplet flue gas FG penetration for efficient impurity reduction.

Abstract translation: 描述了喷雾干燥器分散器24,26,28,30用于用于烟道气FG杂质减少的喷雾干燥器吸收（SDA）系统18。 因此，喷雾干燥器分散器24,26,28,30将吸收液体或试剂浆料液滴与含有气态杂质的热烟道气FG流接触，以产生杂质含量降低的烟道气FG流和干粉终产物EP 。 喷雾干燥器分散器24,26,28,30可用于直径大于或等于约12至22米的较大容量的SDA容器22中，以避免分散器24,26,28,30罩垢沉积物沉积，以避免试剂浆液喷雾 云的抑制，以避免容器22壁22b刻度沉积，并实现增加的液滴旋转动量，以增加液滴烟气FG渗透率，从而有效地降低杂质。

公开(公告)号：US20130199647A1

公开(公告)日：2013-08-08

申请号：US13754981

申请日：2013-01-31

Applicant: ALSTOM TECHNOLOGY LTD

Inventor： Ali Mustapha TABIKH ,  Nabil Elias RAFIDI

IPC: B01F5/00

CPC classification number: B01F5/00 ,  B01D53/56 ,  B01D53/79 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2257/404 ,  B01F3/04049 ,  B01F5/0451 ,  B01F5/0456 ,  B01F5/0463 ,  B01F5/0618 ,  F23J15/003 ,  Y10T137/87652

Abstract: The invention relates to an arrangement for supplying a reducing agent in gaseous form into a flue gas flowing in a gas duct (4) communicating with a catalyst in a selective catalytic reduction reactor (SCR) arranged downstream said arrangement. The arrangement comprises a plurality of nozzles (21) arranged in the gas duct (4). The nozzles (21) are adapted to supply said reducing agent. The arrangement further comprises a plurality of mixing plates (30) arranged in the gas duct (4) downstream of said nozzles (21). Each mixing plate (30) is adapted to cooperate with at least one dedicated nozzle (21). Further, each nozzle (21) is arranged within a projected area of its dedicated mixing plate (30), the projected area is the area of a surface of the dedicated mixing plate (30) as projected in a plane perpendicular to the gas flow direction (F) of the gas duct (4).

Abstract translation: 本发明涉及一种用于将气态形式的还原剂供应到在布置在所述装置下游的选择性催化还原反应器（SCR）中与催化剂连通的气体管道（4）中流动的烟道气中的装置。 该装置包括布置在气体导管（4）中的多个喷嘴（21）。 喷嘴（21）适于供应所述还原剂。 该装置还包括布置在所述喷嘴（21）下游的气体管道（4）中的多个混合板（30）。 每个混合板（30）适于与至少一个专用喷嘴（21）配合。 此外，每个喷嘴（21）布置在其专用混合板（30）的投影区域内，投影面积是投影在与气体流动方向垂直的平面中的专用混合板（30）的表面的面积 （4）的气体（F）。