发明名称 |
Selective permeation of aromatic hydrocarbons through polyethylene glycol impregnated regenerated cellulose or cellulose acetate membranes |
摘要 |
Aromatic hydrocarbons present in a hydrocarbon feed stream containing a mixture of aromatic hydrocarbons and non-aromatic saturated organic components are separated from said hydrocarbon feed stream by selective permeation of the aromatic hydrocarbon through a regenerated cellulose or cellulose acetate membrane which has been impregnated with polyethylene glycol. The thus treated membrane possesses high selectivity for aromatic hydrocarbons at a high flux. The amount and type of polyethylene glycol impregnated into the membrane is carefully controlled in order to achieve high aromatic selectivity and high flux.
|
申请公布号 |
US4802987(A) |
申请公布日期 |
1989.02.07 |
申请号 |
US19840583104 |
申请日期 |
1984.02.24 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
BLACK, LAURA E. |
分类号 |
B01D61/36;B01D61/38;B01D67/00;B01D69/14;C07C7/144;C10G31/11;(IPC1-7):B01D13/00 |
主分类号 |
B01D61/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|