US 11,767,285 B2
Catalyst for synthesizing dimethylether or methylacetate from synthetic gas, method for preparing the same, and method for preparing dimethylether or methylacetate using the same
Chae Hwan Hong, Seoul (KR); Jin Woo Choung, Suwon-si (KR); Young Gul Hur, Uiwang-si (KR); Jong Wook Bae, Suwon-si (KR); and Hyun Seung Jung, Suwon-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); KIA CORPORATION, Seoul (KR); and RESEARCH & BUSINESS FDN. SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); KIA CORPORATION, Seoul (KR); and RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Filed on Sep. 9, 2021, as Appl. No. 17/470,122.
Claims priority of application No. 10-2021-0055654 (KR), filed on Apr. 29, 2021.
Prior Publication US 2022/0348532 A1, Nov. 3, 2022
Int. Cl. B01J 29/65 (2006.01); B01J 29/72 (2006.01); B01J 37/03 (2006.01); C07C 67/37 (2006.01); B01J 29/80 (2006.01); B01J 37/10 (2006.01); B01J 37/30 (2006.01); B01J 37/08 (2006.01); B01J 29/68 (2006.01); C07C 29/156 (2006.01); C07C 41/09 (2006.01); B01J 37/04 (2006.01)
CPC C07C 67/37 (2013.01) [B01J 29/68 (2013.01); B01J 29/72 (2013.01); B01J 29/80 (2013.01); B01J 37/035 (2013.01); B01J 37/04 (2013.01); B01J 37/082 (2013.01); B01J 37/10 (2013.01); B01J 37/30 (2013.01); C07C 29/156 (2013.01); C07C 41/09 (2013.01); B01J 2229/18 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of preparing a catalyst for synthesizing dimethyl ether or methylacetate from synthetic gas, the method comprising:
adding a silica source, an alumina source, an organic template material, and a structural derivative material to a basic aqueous solution to prepare a precursor mixed solution;
synthesizing a nanosheet ferrierite zeolite (FER) by hydrothermal synthesis of the precursor mixed solution; and
co-precipitating the nanosheet ferrierite zeolite and a precursor of a Cu—Zn—Al-based oxide (CZA) to obtain a hybrid CZA/FER catalyst;
wherein the structural derivative material includes pyrrolidine, piperidine, or a combination thereof; and
wherein the silica source and the aluminum source are added in a mole ratio of about 5:1 to about 30:1.