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    • 7. 发明公开
    • IMPROVED ACID GAS REMOVAL PROCESS BY ABSORBENT SOLUTION COMPRISING AMINE COMPOUNDS
    • VERBESSERTER SAUERGASENTFERNUNGSPROZESS DURCH ABSORPTIONSLSSUNG MIT AMINVERBINDUNGEN
    • EP3145621A1
    • 2017-03-29
    • EP15724996.2
    • 2015-05-22
    • Taminco
    • MATTON, RobinVANDEPUTTE, BartMOONEN, KristofVICTOR, Klaas
    • B01D53/14B01D53/46C10L3/10B01D53/78
    • C10L3/104B01D53/1425B01D53/1468B01D53/1475B01D53/1493B01D53/52B01D53/62B01D53/78B01D2251/80B01D2252/20431B01D2252/504B01D2257/304B01D2257/504B01D2258/0283C10L3/103C10L2290/541
    • Disclosed is a process for deacidising a non-aqueous feed comprising one of H2S, CO2, COS, CS2, disulphides and/or mercaptans, comprising a. an absorption step contacting the feed in countercurrent with an aqueous absorbent solution, forming a product reduced in the acid compounds and a liquid absorbent solution enriched with acid compounds, b. a regeneration step treating the enriched solution from step a) to release acid compound, thereby forming a lean absorbent solution and a stream containing the acid compound, and c. recycling at least part of the lean solution from step b) to step a), characterised in that step a) is performed at a pressure of at least 5.0 bar gauge, and the absorbent solution comprises an absorbent selected from Ν,Ν,Ν'-trimethyl-N'-(hydroxyethyl)-1,3-propanediamine, N-(3-aminopropyl)-N-(dimethyl-amino)propyl-N',N'-dimethyl-1,3-propanediamine, and a mixture of methyl diethanol amine with tris(N,N,-dimethylamino propylamine in a weight ratio in the range of 25:75 to 95:5, and mixtures thereof.
    • 公开了一种使包含H 2 S,CO 2,COS,CS 2,二硫化物和/或硫醇中的一种的非水性进料脱酸的方法,其包括a。 吸收步骤使进料与吸收水溶液逆流接触,形成酸性化合物中还原的产物和富含酸化合物的液体吸收剂溶液,b。 处理来自步骤a)的富集溶液的再生步骤以释放酸化合物,从而形成贫吸收剂溶液和含有酸化合物的流,c。 将来自步骤b)的至少部分贫溶液再循环到步骤a),其特征在于步骤a)在至少5.0巴表压的压力下进行,并且吸收剂溶液包含选自N,N,N' - 三甲基-N' - (羟乙基)-1,3-丙二胺,N-(3-氨基丙基)-N-(二甲基 - 氨基)丙基-N',N'-二甲基-1,3-丙二胺和混合物 的甲基二乙醇胺与三(N,N,N-二甲基氨基丙胺,重量比在25:75至95:5的范围内)及其混合物。