	US 12,138,594 B2
	Synthesis of porous graphitic carbon membranes
Lei Fang, College Station, TX (US); Sai Che, College Station, TX (US); Chenxu Wang, College Station, TX (US); Mohammed Al-Hashimi, Doha (QA); and Sarbajit Banerjee, College Station, TX (US)
Assigned to QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT, Doha (QA); and TOTAL E&P GOLFE LTD, Doha (QA)
Appl. No. 17/609,515
Filed by QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT, Doha (QA); and TOTAL E&P GOLFE LTD, Doha (QA)
PCT Filed May 10, 2020, PCT No. PCT/QA2020/050006 § 371(c)(1), (2) Date Nov. 8, 2021, PCT Pub. No. WO2020/231282, PCT Pub. Date Nov. 19, 2020.
Claims priority of provisional application 62/846,266, filed on May 10, 2019.
Prior Publication US 2022/0212147 A1, Jul. 7, 2022
Int. Cl. B01D 67/00 (2006.01); B01D 71/02 (2006.01)

CPC B01D 67/0006 (2013.01) [B01D 71/0211 (2022.08)]

17 Claims

1. A method for preparation of a carbon membrane, the method comprising:

providing a first solution comprising a diacetyl biphenyl monomer and an alkylsulfonic acid;

treating the first solution under such conditions that an aldol condensation reaction occurs to produce a porous polymer network;

treating the porous polymer network under such conditions that a Scholl reaction occurs;

synthesizing a porous carbon precursor; and

wherein the synthesizing of the porous carbon precursor comprises:

heating the first solution to a temperature between 100° C. and 200° C.;

cooling the first solution; and

extracting the porous carbon precursor;

synthesizing a porous graphitic carbon;

the synthesizing of the porous graphitic carbon comprises:

providing a suspension comprising the porous carbon precursor;

bubbling the suspension with N₂;

adding to the suspension a mixture comprising FeCl₃and MeNO₂dropwise; and

stirring the suspension.