公开(公告)号：US4478799A

公开(公告)日：1984-10-23

申请号：US447821

申请日：1982-12-08

Applicant: Georg Bengeser ,  Gerhard Ranke

Inventor： Georg Bengeser ,  Gerhard Ranke

IPC: B01D53/64 ,  B01D53/14 ,  B01D53/40 ,  B01D53/52 ,  B01D53/77 ,  C10K1/16 ,  B01D53/34 ,  C01B17/04

CPC classification number: B01D53/1456 ,  B01D53/526 ,  C10K1/165

Abstract: In the removal of sour gases, H.sub.2 S in particular, from CO-containing gaseous mixtures containing heavy metal carbonyls by scrubbing under pressure at temperatures of below 0.degree. C. with a scrubbing medium, the scrubbing medium is regenerated by inter alia, being heated by means of heat exchangers, and such exchangers are normally fouled by precipitates of metal sulfides which owe their presence to the decomposition of the metal carbonyls to form reactive heavy metal which combines with sulfide ion. To avoid fouling of the heat exchangers, the CO partial pressure is increased during the heating of the loaded scrubbing medium, to above the partial pressure of the CO in equilibrium with the carbonyls in the scrubbing medium thereby preventing the decomposition of the carbonyls.

Abstract translation: 在通过用洗涤介质在低于0℃的温度下在压力下进行擦洗来除去特别是含有重金属羰基化物的含CO气态混合物的酸性气体的硫化氢，洗涤介质尤其是被 这种交换器通常被金属硫化物的沉淀物所污染，这些金属硫化物的存在使其分解成金属羰基化合物，形成与硫化物离子结合的反应性重金属。 为了避免热交换器的结垢，在加载的洗涤介质的加热期间CO分压增加到与洗涤介质中的羰基平衡的CO分压之上，从而防止羰基分解。