
Cuihua Xuebao/Chinese Journal of Catalysis p. 844 - 854 (2021)
Update date:2022-08-11
Topics:
Chu, Dawang
Xin, Yingying
Zhao, Chen
Current bio-ethanol production entails the enzymatic depolymerization of cellulose, but this process shows low efficiency and poor economy. In this work, we developed a consecutive aqueous hydrogenolysis process for the conversion of corn-stalk cellulose to produce a relatively high concentration of bio-ethanol (6.1 wt%) without humin formation. A high yield of cellulose (ca. 50 wt%) is extracted from corn stalk using a green solvent (80 wt% 1,4-butanediol) without destroying the structure of the lignin. The first hydrothermal hydrogenolysis step uses a Ni–WOx/SiO2 catalyst to convert the high cumulative concentration of cellulose (30 wt%) into a polyol mixture with a 56.5 C% yield of ethylene glycol (EG). The original polyol mixture is then subjected to subsequent selective aqueous-phase hydrogenolysis of the C–O bond to produce bioethanol (75% conversion, 84 C% selectivity) over the modified hydrothermally stable Cu catalysts. The added Ni component favors the good dispersion of Cu nanoparticles, and the incorporated Au3+ helps to stabilize the active Cu0-Cu+ species. This multi-functional catalytic process provides an economically competitive route for the production of cellulosic ethanol from raw lignocellulose.
Qingdao S. H. Huanyu Imp. & Exp. Co., Ltd.
Contact:86-532-88250866
Address:Room 615, World Trade Centre Building B, Hongkong Middle Roda 6#, Qingdao, Shandong, China
Kaymossy BioChem Tech Co., Ltd
website:http://www.kaimosi.com
Contact:0571-87191913/0571-87199097
Address:Room 215, Building 3rd, No.288 Ningxia Road, Qingdao city, China
Springchem New Material Technology Co.,Limited
website:http://www.spring-chem.com
Contact:86-21-62885108
Address:602B, Building 1, No. 641, Tianshan Road
Contact:86-513-84128750/13773795976
Address:No.48.Youyi West Road ,Rudong Development Zone,Jiangsu Province,China
Contact:852-29282288
Address:HONGKONG
Doi:10.1016/j.bmcl.2018.07.026
(2018)Doi:10.1021/jacs.7b04481
(2017)Doi:10.1007/BF00908573
(1970)Doi:10.1021/acs.orglett.7b03397
(2018)Doi:10.1255/ejms.1357
(2015)Doi:10.1016/S1386-1425(00)00321-8
(2000)