Catalytic conversion of cellulose into ethylene glycol over supported carbide catalysts |
| |
| Authors: | Na Ji Tao Zhang Mingyuan Zheng Aiqin Wang Hui Wang Xiaodong Wang Yuying Shu Alan L Stottlemyer Jingguang G Chen |
| |
| Affiliation: | aState Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences(CAS), Dalian 116023, China;bGraduate School of the Chinese Academy of Sciences, Beijing 100049, China;cDepartment of Chemical Engineering, Center for Catalytic Science and Technology (CCST), University of Delaware, Newark, DE 19716, USA |
| |
| Abstract: | In the current paper we present a combined catalytic and surface science studies to evaluate the utilization of carbide catalysts for the conversion of cellulose to polyols, especially to ethylene glycol (EG). Based on catalytic studies over a W2C catalyst, the EG yield has been optimized by varying H2 pressure, reaction temperature and time. The catalytic performance has been compared for several types of supported catalysts, including tungsten carbides, molybdenum carbides and platinum on different supports. Among all the catalysts, tungsten carbide supported on activated carbon, W2C/AC, shows the highest EG yield, which is further enhanced to 61% with the promotion of Ni. The corresponding surface science studies indicate that the enhanced EG yield is at least partially due to a weaker bonding between EG and Ni-promoted tungsten carbide surface. |
| |
| Keywords: | Biofuels Catalysis Cellulose Sustainable chemistry Tungsten carbides |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
