B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 69/12 (2006.01) B01D 53/22 (2006.01) B01D 67/00 (2006.01) B01D 69/10 (2006.01) B01D 69/14 (2006.01) B01D 71/02 (2006.01) B01J 20/28 (2006.01) C04B 38/00 (2006.01) C04B 41/50 (2006.01) C04B 41/85 (2006.01) C10G 70/04 (2006.01)
Patent
CA 2098684
Improved composite semipermeable membranes comprising microporous carbonaceous adsorptive material supported by a porous substrate are disclosed for use in separating multicomponent gas mixtures in which certain components in the mixture adsorb within the pores of the adsorptive material and diffuse by surface flow through the membrane to yield a permeate stream enriched in these components. Methods for making the improved composite membranes are described including one or more oxidation steps which increase the membrane permeability and selectivity.
On divulgue des membranes semi-perméables composites améliorées comprenant de la matière carbonée adsorbante microporeuse ayant pour support un substrat poreux pour utilisation dans la séparation de mélanges gazeux à constituants multiples dans lesquels certains constituants du mélange sont adsorbés dans les pores de la matière adsorbante et diffusent par écoulement de surface à travers la membrane pour produire un courant de perméat enrichi en ces constituants. Des méthodes pour fabriquer les membranes composites améliorées sont décrites, dont une étape d'oxydation ou plus qui augmentent la perméabilité et la sélectivité des membranes.
Golden Timothy Christopher
Rao Madhukar Bhaskara
Sircar Shivaji
Mcfadden Fincham
The Mid-America Commercialization Corporation ("macc")
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