VERFAHREN ZUR ABTRENNUNG VON SAUERGASEN AUS EINEM STICKOXIDE ENTHALTENDEN FLUIDSTROM

    公开(公告)号:EP3016732A1

    公开(公告)日:2016-05-11

    申请号:EP14735958.2

    申请日:2014-07-04

    申请人: BASF SE

    IPC分类号: B01D53/14

    摘要: The invention relates to a method for removing acid gases from a fluid flow containing nitrogen oxides, wherein a) the fluid flow is brought in contact with an aqueous absorbent, which contains at least one amino-group-containing compound, in an absorption zone, wherein a deacidified fluid flow is obtained, b) bringing the deacidified fluid flow in contact with an aqueous scrubbing liquid in at least one scrubbing zone and obtaining a deaminated, deacidified fluid flow, wherein the scrubbing liquid is recycled by means of at least one scrubbing zone, c) treating overflow from the at least one scrubbing zone with UV light, and d) combining the UV-treated overflow with the absorbent. The method enables the efficient decomposition of the nitrosamines contained in the absorbent.

    摘要翻译: 一种用于从含氮氧化物的流体物流中分离出酸性气体的方法,其中a)使所述流体物流与含有至少一个含氨基化合物的含水吸收剂在吸收区中接触,其中脱酸流体流 b)使脱酸的流体物流与至少一个洗涤区域与含水洗涤液接触,并且获得脱氨化的脱酸流体物流,其中所述洗涤液体通过至少一个洗涤区再循环,c) 用紫外光处理来自至少一个洗涤区的溢流,以及d)UV处理的溢流与吸收剂结合。 该方法允许存在于吸收剂中的亚硝胺的有效降解。