Patent ID: 11896954
Assignee: INSTITUTO MEXICANO DEL PETRóLEO
Field: Chemical engineering (Chemistry)
Classification: CPC B  Y | IPC B

Claim 6:
7. A method of using microporous carbon materials prepared according to the process of claim 1, wherein said use comprises:
separating and desorbing mixtures of nitrogen with hydrocarbons C1, C2, C3 and C4+, with adsorption of the latter using adsorption conditions in a temperature range of 20° C. to 45° C. and with a pressure range of 2 kg/cm2 to 15 kg/cm2;
wherein the desorption conditions are in a temperature range of 135° C. to 250° C. and at reduced pressure to atmospheric pressure; and
the microporous carbon materials have a carbon content in the microsphere shell of between 80% to 97% by mass and oxygen in the microsphere shell.