公开(公告)号：EP0215505A3

公开(公告)日：1988-02-03

申请号：EP86201424

申请日：1986-08-15

申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

发明人： Olson, Donald Craig ,  Miller, John Joseph ,  Blytas, George Constantin ,  Diaz, Zaida

IPC分类号： B01D53/34 ,  C10K01/12

CPC分类号： B01D53/1493 ,  B01D53/1418 ,  B01D53/1468 ,  C10K1/12

摘要： In a contacting zone (2) a sour gaseous stream (1) is contacted at a temperature below the melting point of sulphur with an aqueous reactant solution (12), which reactant solution contains an ammonium form of a coordination complex of Fe(III) with nitrilo­triacetic acid, an ammonium form of a coordination complex of Fe(II) with nitrilotriacetic acid, and aqueous ammonia, and which reactant solution has a pH of between about 5 and about 8.5, under conditions to convert H₂S, and producing a gaseous stream having reduced H₂S content and an aqueous mixture containing solid sulphur and additional ammonium form of the coordination complex of Fe(II) with nitrilotriacetic acid in solution, wherein the molar ratio of the ammonium form of the coordination complex of Fe(III) with nitrilotriacetic acid to the ammonium form of the coordination complex of Fe(II) with nitrilotriacetic acid in the reactant solution is between about 0.2 and about 6, and wherein the aqueous reactant solution optionally comprises 0.01 mol to 4 mol thio­sulphate ion per mol of iron.

公开(公告)号：EP0042041A3

公开(公告)日：1982-03-24

申请号：EP81102406

申请日：1981-03-31

申请人： Dr. C. Otto & Co. GmbH

发明人： Ritter, Horst

IPC分类号： C10K01/12

CPC分类号： C10K1/12 ,  B01D53/1468 ,  C01B17/167 ,  C01C1/12 ,  C10K1/121