Gas separations using high performance mixed matrix membranes

Details Gas separations using high performance mixed matrix membranes Gas separations using high performance mixed matrix membranes

2011-08-16

2011-08-16

Greene, Jason M (Department: 1776)

Gas separation: processes

Selective diffusion of gases

Selective diffusion of gases through substantially solid...

C095S043000, C095S047000, C096S004000, C096S014000

Reexamination Certificate

active

07998246

ABSTRACT:
The present invention discloses a novel method of making high performance mixed matrix membranes (MMMs) using stabilized concentrated suspensions of solvents, uniformly dispersed polymer stabilized molecular sieves, and at least two different types of polymers as the continuous blend polymer matrix. MMMs as dense films or asymmetric flat sheet or hollow fiber membranes fabricated by the method described in the current invention exhibit significantly enhanced permeation performance for separations over the polymer membranes made from the continuous blend polymer matrix. MMMs of the present invention are suitable for a wide range of gas, vapor, and liquid separations such as alcohol/water, CO2/CH4, H2/CH4, O2/N2, CO2/N2, olefin/paraffin, iso
ormal paraffins, and other light gases separations.

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