申请人:Battelle Memorial Institute
公开号:US20200306688A1
公开(公告)日:2020-10-01
Disclosed herein is a method and system for CO2 removal from a gas stream using a diamine solvent having a Formula I
R
1
(R
2
)N-L
1
-NH-R
3
(I)
With respect to Formula I, each of R
1
and R
2
independently is aliphatic, cycloaliphatic, or R
1
and R
2
together with the nitrogen to which they are attached, form a heterocyclyl ring; L
1
is aliphatic, cycloaliphatic, or L
1
and R
1
together with the nitrogen to which they are attached form a heterocyclyl ring; and R
3
is aliphatic, cycloaliphatic, cycloalkylalkyl, or alkoxyalkyl. And/or the compound may have a viscosity of less than 75 cP at a CO
2
-loading of 40 mol % and at a temperature of 40° C.
本文揭示了一种利用具有Formula IR1(R2)N-L1-NH-R3(I)的二胺溶剂从气流中去除二氧化碳的方法和系统。对于Formula I,R1和R2中的每一个都是脂肪族、环脂族,或者R1和R2与它们所连接的氮形成杂环状环;L1是脂肪族、环脂族,或者L1和R1与它们所连接的氮形成杂环状环;R3是脂肪族、环脂族、环烷基烷基或烷氧基烷基。和/或该化合物在CO2负载为40摩尔%、温度为40°C时的粘度小于75厘泊。