US 11,717,787 B2
High free volume membrane for gas separation
Junyan Yang, Acton, MA (US)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jan. 4, 2021, as Appl. No. 17/140,395.
Prior Publication US 2022/0212139 A1, Jul. 7, 2022
Int. Cl. B01D 53/22 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 71/16 (2006.01); B01D 71/18 (2006.01); B01D 71/62 (2006.01); C10L 3/10 (2006.01)
CPC B01D 53/228 (2013.01) [B01D 67/0083 (2013.01); B01D 67/0093 (2013.01); B01D 69/02 (2013.01); B01D 71/16 (2013.01); B01D 71/18 (2013.01); B01D 71/62 (2013.01); C10L 3/104 (2013.01); B01D 2325/023 (2013.01); C10L 2290/548 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A gas separation membrane, comprising:
a cellulosic matrix; and
a polymer of intrinsic microporosity (PIM), wherein the PIM comprises chains coupled by a heat-treating under vacuum.