发明名称 |
CYCLIC-AMINE-COMPRISNG ABSORPTION MEDIUM FOR REMOVING ACID GASES |
摘要 |
An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of A) at least one cyclic amine compound having solely tertiary amine groups and/or sterically hindered secondary amine groups and B) at least one cyclic amine compound having at least one sterically unhindered secondary amine group. The absorption medium comprises, e.g., an aqueous solution of A) 1-hydroxyethylpiperidine and/or triethylenediamine and B) piperazine. The absorption medium is particularly suitable for separating off carbon dioxide from flue gases and satisfies the following criteria: (i) sufficient capacity at low CO2 partial pressures; (ii) sufficiently rapid absorption rate at low CO2 partial pressures; (iii) stability toward oxygen; (iv) low vapor pressure for reducing solvent losses; and (v) low energy requirement for regeneration of the absorption medium. |
申请公布号 |
US2014079613(A1) |
申请公布日期 |
2014.03.20 |
申请号 |
US201314083967 |
申请日期 |
2013.11.19 |
申请人 |
ANDARCIA HUGO RAFAEL GARCIA;LICHTFERS UTE;SIEDER GEORG;SPUHL OLIVER;BRUGHMANS STEVEN;BASF SE |
发明人 |
ANDARCIA HUGO RAFAEL GARCIA;LICHTFERS UTE;SIEDER GEORG;SPUHL OLIVER;BRUGHMANS STEVEN |
分类号 |
B01D53/62 |
主分类号 |
B01D53/62 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|