文献类型：期刊文献

中文题名：Absorption Enhanced Methanol Synthesis in a Trickle Bed Reactor over Cu/Zn/Al₂O₃Catalyst

英文题名：Absorption Enhanced Methanol Synthesis in a Trickle Bed Reactor over Cu/Zn/Al₂O₃Catalyst

作者：Peng Liu[1];Zhenmin Cheng[1]

机构：[1]State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2015

卷号：3

期号：6

起止页码：27

中文期刊名：Journal of Materials Science and Chemical Engineering

外文期刊名：材料科学与化学工程（英文）

语种：英文

中文关键词：Absorption;Methanol;Synthesis;Trickle;Bed;Reactor

外文关键词：Absorption;Methanol Synthesis;Trickle Bed Reactor

摘要：Methanol synthesis in a trickle bed reactor with tetraethylene glycol dimethyl ether (TEGDME) as the liquid phase over a Cu/Zn/Al2O3 catalyst was investigated. The pressure was kept constant at 5.0 MPa, while the temperature ranged from 230℃?to 260℃?and the mass space velocity varied between 294 L·Kg-1·h-1 and 1655 L·Kg-1·h-1. The effects of temperature and space velocity on CO conversion and methanol productivity were studied. Methanol synthesis processes in trickle bed with the TEGDME and paraffin oil as liquid phase were compared with the fixed bed process. The results indicated that the optimal temperature was approximately 240℃. When the space velocity was increased, the CO conversion decreased while the methanol productivity increased. The liquid introduced can help to keep the reactor nearly isothermal. For methanol synthesis in trickle-bed reactor, TEGDME was better than paraffin oil. Effect of TEGDME on the reaction was twofold. On one hand, it absorbs the methanol and speeds up the reaction. On the other hand, it also increases the mass transfer resistance and hinders the reaction.
Methanol synthesis in a trickle bed reactor with tetraethylene glycol dimethyl ether (TEGDME) as the liquid phase over a Cu/Zn/Al2O3 catalyst was investigated. The pressure was kept constant at 5.0 MPa, while the temperature ranged from 230℃?to 260℃?and the mass space velocity varied between 294 L·Kg-1·h-1 and 1655 L·Kg-1·h-1. The effects of temperature and space velocity on CO conversion and methanol productivity were studied. Methanol synthesis processes in trickle bed with the TEGDME and paraffin oil as liquid phase were compared with the fixed bed process. The results indicated that the optimal temperature was approximately 240℃. When the space velocity was increased, the CO conversion decreased while the methanol productivity increased. The liquid introduced can help to keep the reactor nearly isothermal. For methanol synthesis in trickle-bed reactor, TEGDME was better than paraffin oil. Effect of TEGDME on the reaction was twofold. On one hand, it absorbs the methanol and speeds up the reaction. On the other hand, it also increases the mass transfer resistance and hinders the reaction.