公开(公告)号：AT131406T

公开(公告)日：1995-12-15

申请号：AT91302766

申请日：1991-03-28

Applicant: STANDARD OIL CO OHIO

Inventor： DAVIS JAMES CRITSER ,  VALUS RONALD JAMES ,  ESHRAGHI REZA ,  VELIKOFF ALXANDER EVAN

IPC: B01D53/22 ,  B01D61/38

Abstract: A process for the selective separation of at least one component eg propylene of a gaseous feedstream comprises passing the feedstream containing the component through a separation unit (50), the separation unit (50) containing a porous membrane (53), eg in the form of a hollow fiber, the membrane (53) having a feed side and a permeate side, and a pore size of from about 10 Angstroms to about 200 Angstroms. Disposed in the pores of the porous membrane (53) is a facilitator liquid comprising a carrier eg silver nitrate dissolved in a suitable solvent. The process includes the steps of (a) dissolving the component in the facilitator liquid on the feed side of the porous membrane (53) at the feed gas/membrane interface; (b) forming a component-carrier complex; (c) diffusing the complex to the permeate side of the porous membrane (53): and (d) releasing the component from the carrier.

公开(公告)号：DE69115329T2

公开(公告)日：1996-05-02

申请号：DE69115329

申请日：1991-03-28

Applicant: STANDARD OIL CO OHIO

Inventor： DAVIS JAMES CRITSER ,  VALUS RONALD JAMES ,  ESHRAGHI REZA ,  VELIKOFF ALXANDER EVAN

IPC: B01D53/22 ,  B01D61/38

Abstract: A process for the selective separation of at least one component eg propylene of a gaseous feedstream comprises passing the feedstream containing the component through a separation unit (50), the separation unit (50) containing a porous membrane (53), eg in the form of a hollow fiber, the membrane (53) having a feed side and a permeate side, and a pore size of from about 10 Angstroms to about 200 Angstroms. Disposed in the pores of the porous membrane (53) is a facilitator liquid comprising a carrier eg silver nitrate dissolved in a suitable solvent. The process includes the steps of (a) dissolving the component in the facilitator liquid on the feed side of the porous membrane (53) at the feed gas/membrane interface; (b) forming a component-carrier complex; (c) diffusing the complex to the permeate side of the porous membrane (53): and (d) releasing the component from the carrier.

公开(公告)号：DE69115329D1

公开(公告)日：1996-01-25

申请号：DE69115329

申请日：1991-03-28

Applicant: STANDARD OIL CO OHIO

Inventor： DAVIS JAMES CRITSER ,  VALUS RONALD JAMES ,  ESHRAGHI REZA ,  VELIKOFF ALXANDER EVAN

IPC: B01D53/22 ,  B01D61/38

Abstract: A process for the selective separation of at least one component eg propylene of a gaseous feedstream comprises passing the feedstream containing the component through a separation unit (50), the separation unit (50) containing a porous membrane (53), eg in the form of a hollow fiber, the membrane (53) having a feed side and a permeate side, and a pore size of from about 10 Angstroms to about 200 Angstroms. Disposed in the pores of the porous membrane (53) is a facilitator liquid comprising a carrier eg silver nitrate dissolved in a suitable solvent. The process includes the steps of (a) dissolving the component in the facilitator liquid on the feed side of the porous membrane (53) at the feed gas/membrane interface; (b) forming a component-carrier complex; (c) diffusing the complex to the permeate side of the porous membrane (53): and (d) releasing the component from the carrier.