Patent ID: 9095809
Filing Date: 2015-08-04
Classification: B01D,B01J,C01B,Y02C,Y02P

Abstract:
1. A method for performing a gas separation, comprising: contacting an adsorbent or membrane comprising an 8-member microporous material with a barrier compound under effective conditions to selectivate the adsorbent or membrane, the barrier compound having a minimum molecular dimension that is at least 0.4 Angstroms greater than the maximum dimension of the largest hard sphere that can diffuse along any direction of the adsorbent and a maximum dimension of about 25 Angstroms or less; wherein the effective conditions for contacting the adsorbent or membrane with a barrier compound comprise a temperature from about 50° C. to about 350° C. and a total pressure of about 100 psig (about 690 kPag) to about 2000 psig (about 13.8 MPag), wherein the barrier compound is present either as a liquid or as a gas with a partial pressure of the wherein compound that is at least about 10% of the saturation vapor pressure; wherein selectivation of the adsorbent or membrane comprises diffusion of at least one barrier compound molecule through a pores of the 8-member microporous material; contacting the selectivated adsorbent or membrane with an input gas stream containing a first component and a second component to form a first gas stream enriched in the first component relative to the input gas stream; and collecting a second gas stream enriched in the second component relative to the input gas stream.