公开(公告)号：US20240325985A1

公开(公告)日：2024-10-03

申请号：US18580191

申请日：2022-07-21

Applicant: Dow Global Technologies LLC

Inventor： Abhishek Roy ,  Thomas C. Fitzgibbons ,  Li Tang ,  Surendar R. Venna ,  Derrick W. Flick ,  Nikki J. Montanez ,  Hali J. McCurry ,  James B. Heard ,  Barry B. Fish

IPC: B01D67/00 ,  B01D53/22 ,  B01D69/02 ,  B01D69/08 ,  B01D71/02

CPC classification number: B01D67/0067 ,  B01D53/228 ,  B01D69/02 ,  B01D69/088 ,  B01D71/021 ,  B01D2256/16 ,  B01D2256/22 ,  B01D2256/24 ,  B01D2257/102 ,  B01D2257/7022 ,  B01D2323/081 ,  B01D2323/60 ,  B01D2325/023

Abstract: A method of manufacturing a hollow fiber carbon membrane, the method includes heating a polymeric precursor to a pyrolysis temperature that is greater than or equal to 900° C. and less than or equal to 1200° C., and pyrolyzing the polymeric precursor at the pyrolysis temperature in a pyrolysis atmosphere that comprises oxygen in an amount that is greater than 0 ppm and less than 200 ppm.