公开(公告)号：US4101633A

公开(公告)日：1978-07-18

申请号：US768421

申请日：1977-02-14

申请人： Guido Sartori ,  David W. Savage

发明人： Guido Sartori ,  David W. Savage

IPC分类号： B01D53/40 ,  B01D53/14 ,  B01D53/77 ,  B01J19/00 ,  C10K1/14 ,  B01D53/34

CPC分类号： B01D53/1493 ,  Y02C10/06

摘要： Carbon dioxide containing acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an aqueous amine solution, wherein the amine consists of at least about 50 mol % of a sterically hindered amino alcohol and at least about 10 mol % of a tertiary amino alcohol, wherein said sterically hindered amino alcohol contains at least one secondary amino group which is part of a ring and is attached to either a secondary or tertiary carbon atom or a primary amino group attached to a tertiary carbon atom. The coaction of the sterically hindered amino alcohol and the tertiary amino alcohol provide an increase in the amount of carbon dioxide containing acidic gases absorbed compared to the use of the sterically hindered amines alone and lowers the heat of reaction.

摘要翻译： 含有酸性气体的二氧化碳基本上通过包括使常规气态混合物与胺水溶液接触的方法从常规气态混合物除去，其中胺由至少约50mol％的空间位阻氨基醇和至少约10 mol％的叔氨基醇，其中所述空间位阻氨基醇含有至少一个仲氨基，其为环的一部分，并且连接于连接到叔碳原子的仲或叔碳原子或伯氨基。 与单独使用空间位阻胺相比，空间位阻氨基醇和叔氨基醇的共同作用增加了吸收的二氧化碳含量，降低了反应热。

公开(公告)号：US4100257A

公开(公告)日：1978-07-11

申请号：US768420

申请日：1977-02-14

申请人： Guido Sartori ,  David W. Savage

发明人： Guido Sartori ,  David W. Savage

IPC分类号： B01D53/40 ,  B01D53/14 ,  B01D53/48 ,  B01D53/77 ,  C10K1/08 ,  C10K1/14 ,  C10K1/16 ,  B01D53/34

CPC分类号： B01D53/1493

摘要： Acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an amine-solvent liquid absorbent comprising (i) an amine mixture comprised of at least about 50 mol % of a sterically hindered amine and at least about 10 mol % of a tertiary amino alcohol, wherein said sterically hindered amine contains at least one secondary amino group which is part of a ring and is attached to either a secondary or tertiary carbon atom or a primary amino group attached to a tertiary carbon atom, and (ii) a solvent for said amine mixture which is also a physical absorbent for said acidic gases. The liquid absorbent may also include up to about 35 weight percent water. The coaction of the sterically hindered amine and the tertiary amino alcohol in conjunction with the solvent provides an increase in the amount of CO.sub.2 containing acidic gases absorbed compared to the use of the same sterically hindered amines alone and lowers the heat of reaction.

摘要翻译： 酸性气体通过包括将常规气态混合物与胺溶剂液体吸收剂接触的方法基本上从常规气体混合物中除去，该胺溶剂液体吸收剂包含（i）由至少约50mol％空间位阻胺和至少约 10摩尔％的叔氨基醇，其中所述空间位阻胺含有至少一个作为环的一部分的仲氨基并连接到连接到叔碳原子上的仲或叔碳原子或伯氨基上， 和（ii）所述胺混合物的溶剂，其也是所述酸性气体的物理吸收剂。 液体吸收剂还可包含至多约35重量％的水。 与单独使用相同的空间位阻胺相比，空间位阻胺和叔氨基醇与溶剂的共同作用与吸收的含CO 2的量相比增加了，降低了反应热。