Compact Membrane Systems, Inc.

Kenneth Evan Loprete

Robert Daniel Lousenberg

Sudipto Majumdar

Ning Shangguan

An improved method for humidification of a facilitated-transport membrane incorporates delivering a non-selective hydration fluid incorporating liquid water to a permeate side of a pressure vessel containing the facilitated transport membrane. The non-selective hydration fluid includes water and may be configured on the permeate side interface of the facilitated-transport membrane as a liquid or a gas. A process for separation of components in a gaseous mixture utilizing the method for humidification produces higher permeation of gasses through the facilitated transport membrane. The non-selective hydration fluid may be static or flowing and is non-selective for the permeance of certain permeate-gas components over other components.

Method for humidifying facilitated-transport membranes

This invention discloses a method for separation of an aromatic compound from a mixture comprising an alkane using an improved thin-film composite membrane. The membrane is particularly useful for separation of benzene from cyclohexane, which have similar boiling points. The membrane comprises a more mechanically durable and defect-free separation layer as a result of its fabrication from an ionomer solution that is substantially free of dissolved ionic species not associated with the ionomer.

Processes for separation of aromatic compounds using a thin film composite membrane

This invention discloses an improved thin-film composite membrane and processes that use the membrane for the separation of gaseous mixtures that include an alkene. The membrane is particularly useful for separation of alkenes from alkanes or the separation of alkenes from other non-hydrocarbon gases. The membrane has a more mechanically durable and defect-free gas-separation layer that is fabricated from an ionomer solution that is substantially free of dissolved ionic species not associated with the ionomer and the mean helium permeability of the thin-film composite membrane is less than two times greater than the intrinsic helium permeability of the gas-separation layer.

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Philadelphia, PA, United States of America

Kenneth Evan Loprete