Process for absorption of sulfur compounds from fluids
    4.
    发明授权
    Process for absorption of sulfur compounds from fluids 失效
    从流体中吸收硫化合物的方法

    公开(公告)号:US5098681A

    公开(公告)日:1992-03-24

    申请号:US569120

    申请日:1990-08-16

    IPC分类号: B01D53/14 B01D53/50 C10K1/14

    摘要: Sulfur dioxide is removed from a fluid containing SO.sub.2 by employing as an absorbent therefor an aqueous solution of compounds represented by Formulas I and II: ##STR1## wherein each R.sup.1 or R.sup.2 is independently hydrogen; an alkyl group; a hydroxyalkyl group; an aldehyde group; a carboxylic acid or salt group; an alkyl group containing at least one carboxylic ester, carboxylic acid or salt, ether, aldehyde, ketone or sulfoxide; and wherein at least one R.sup.1 or R.sup.2 is a carbonyl-containing group, such as an aldehyde group, a carboxylic acid containing group, a carboxyl ester group, or a ketone-containing group; ##STR2## wherein each R.sup.3 is independently hydrogen; an alkyl group; a hydroxyalkyl group; an aldehyde group; a carboxylic acid or salt group; or an alkyl, aryl, or aralkyl group containing at least one carboxylic ester, a carboxylic acid or salt, ether, aldehyde, ketones or sulfoxide group. The absorbent solution preferably can be thermally regenerated by heating to remove SO.sub.2.

    摘要翻译: 通过使用由式I和II表示的化合物的水溶液作为吸收剂,从含有SO 2的流体中除去二氧化硫:其中每个R 1或R 2独立地是氢; 烷基; 羟基烷基; 醛基; 羧酸或盐基; 含有至少一个羧酸酯,羧酸或盐,醚,醛,酮或亚砜的烷基; 并且其中至少一个R 1或R 2是含羰基的基团,例如醛基,含羧酸基团,羧基酯基团或含酮基团; 式II其中每个R 3独立地是氢; 烷基; 羟基烷基; 醛基 羧酸或盐基; 或含有至少一个羧酸酯,羧酸或盐,醚,醛,酮或亚砜基团的烷基,芳基或芳烷基。 吸收剂溶液优选通过加热热再生以除去SO 2。