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Method of decarbonating a combustion fume with extraction of the solvent contained in the purified fume

机译:通过提取纯化烟气中所含溶剂对燃烧烟气进行脱碳的方法

摘要

The combustion fume flowing in through line 1 is decarbonated by contacting with a solvent in column C2. The solvent laden with carbon dioxide is regenerated in zone R. The purified fume discharged through line 9 comprises part of the solvent. The method allows to extract the solvent contained in the purified fume. The purified fume is contacted in zone ZA with a non-aqueous ionic liquid of general formula Q+ A; Q+ designates an ammonium, phosphonium and/or sulfonium cation, and A an anion likely to form a liquid salt. The solvent-depleted purified fume is discharged through line 17. The solvent-laden ionic liquid is regenerated by heating in evaporation device DE. The solvent separated from the ionic liquid in device DE is recycled.
机译:通过与 2 列中的溶剂接触,使通过 1 线流入的燃烧烟气脱碳。充满二氧化碳的溶剂在区域R中再生。通过管线 9 排出的纯净烟气包含部分溶剂。该方法允许提取纯化烟气中包含的溶剂。净化后的烟气在区域ZA中与通式Q + A -的非水离子液体接触; Q + 表示铵,phospho和/或sulf阳离子,而A -是可能形成液体盐的阴离子。贫溶剂的净化烟气通过管线 17 排出。通过在蒸发装置DE中加热来再生载有溶剂的离子液体。从设备DE中从离子液体中分离出来的溶剂被循环使用。

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