US 12,275,002 B2
Methane upgrade to ethane and ethylene within ceramic membrane reactors
Ahmed Ghoniem, Winchester, MA (US); Bilge Yildiz, Cambridge, MA (US); and Georgios Dimitrakopoulos, Boston, MA (US)
Assigned to MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Cambridge, MA (US)
Filed by MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Cambridge, MA (US)
Filed on Apr. 28, 2021, as Appl. No. 17/243,219.
Prior Publication US 2022/0370988 A1, Nov. 24, 2022
Int. Cl. B01J 37/03 (2006.01); B01J 23/10 (2006.01); B01J 23/78 (2006.01); B01J 35/59 (2024.01); B01J 35/70 (2024.01); B01J 37/08 (2006.01); C01G 49/00 (2006.01); C07C 2/84 (2006.01)
CPC B01J 23/78 (2013.01) [B01J 23/10 (2013.01); B01J 35/59 (2024.01); B01J 37/031 (2013.01); C01G 49/009 (2013.01); C07C 2/84 (2013.01); C07C 2523/10 (2013.01); C07C 2523/78 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of making a ceramic membrane comprising:
dissolving a barium salt, an iron salt, and a zirconium salt in a solvent to form a precursor solution;
adjusting the pH of the precursor solution to form a mixture;
drying the mixture to form an ash;
calcining the ash to form a perovskite oxide; and
distributing a lanthanum oxide catalyst on a surface of the perovskite oxide to form the ceramic membrane;
wherein the perovskite oxide has the formula BaBO3-δ,
wherein B is a mixture of Fe and Zr.