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1.发明公开
公开(公告)号：EP0215505A2
公开(公告)日：1987-03-25
申请号：EP86201424.8
申请日：1986-08-15
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.
摘要翻译： 在接触区（2）中，酸性气流（1）在低于硫的熔点的温度下与反应物水溶液（12）接触，该反应物溶液含有铵形式的Fe（III）配位络合物， 与次氮基三乙酸，铵形式的Fe（II）与次氮基三乙酸的配位络合物和氨水，并且该反应物溶液的pH为约5至约8.5，在转化H 2 S的条件下，并产生气流 具有降低的H 2 S含量和含有固体硫和另外的铵形式的Fe（II）与次氮基三乙酸的配位络合物在水溶液中的含水混合物，其中Fe（III）与次氮基三乙酸的配位络合物的铵形式的摩尔比 在反应物溶液中与铵形式的Fe（II）与次氮基三乙酸的配位络合物在约0.2和约6之间，其中反应物水溶液任选地c 每摩尔铁0.01摩尔至4摩尔硫代硫酸根离子。
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公开(公告)号：EP0107213B1
公开(公告)日：1986-05-28
申请号：EP83201256.1
申请日：1983-08-31
发明人： Olson, Donald Craig
CPC分类号： B01D53/52 , B01D53/1425 , B01D53/1468 , B01D53/1493 , B01D2251/90 , C01B17/05
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公开(公告)号：EP0107213A1
公开(公告)日：1984-05-02
申请号：EP83201256.1
申请日：1983-08-31
发明人： Olson, Donald Craig
CPC分类号： B01D53/52 , B01D53/1425 , B01D53/1468 , B01D53/1493 , B01D2251/90 , C01B17/05
摘要： In a process for the removal of H 2 S from sour gas by contacting the gas with an aqueous solution containing an oxidizing polyvalent metal chelate, the reduced chelate is regenerated in an electrochemical cell in which anode and cathode are separated by a hydrogen ion permeable barrier and (a) oxygen is supplied to the cathode and water is formed at the cathode, or (b) hydrogen is produced at the cathode.
摘要翻译： 在通过使气体与含有氧化性多价金属螯合物的水溶液接触来从酸性气体中除去H 2 S的方法中，还原的螯合物在电化学电池中再生，其中阳极和阴极被氢离子可渗透屏障分离， a）向阴极供应氧气，在阴极处形成水，或（b）在阴极处产生氢气。
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公开(公告)号：EP0215505B1
公开(公告)日：1990-10-10
申请号：EP86201424.8
申请日：1986-08-15
CPC分类号： B01D53/1493 , B01D53/1418 , B01D53/1468 , C10K1/12
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公开(公告)号：EP0215505A3
公开(公告)日：1988-02-03
申请号：EP86201424
申请日：1986-08-15
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.
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