Nano CuO/ZSM-5 zeolite as a green and efficient catalyst for dehydration of 1,4-butanediol to tetrahydrofuran

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2017,（7）
• 页码范围: 964-969
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s11426-016-9002-x

摘要

Nano CuO/ZSM-5 zeolite was prepared and used as a catalyst for dehydration of 1,4-butanediol (BDO) to tetrahydrofuran (THF) in liquid-phase.It was found that the 4.6 wt％ CuO/ZSM-5 displayed good catalytic performance,and nearly 100％ of BDO conversion and more than 99％ of THF selectivity could be achieved by a rotary evaporator reactor at 170 ℃ under the atmospheric pressure.With such mild reaction conditions,2400 g BDO could be converted to THF over 1 g catalyst under semi-continuous operation.Characterizations with X-ray diffraction (XRD),temperature-programmed reduction (TPR),NH3-temperature programmed desorption (TPD),X-ray photoelectron spectroscopy (XPS),transmission electron microscope (TEM) and Brunauer-Emmett-Teller (BET) over fresh and used 4.6 wt％ CuO/ZSM-5 were conducted.Based on the results of the characterization and catalytic performance of 4.6 wt％ CuO/ZSM-5,it can be conjectured that the formed 1-3 nm CuO nanoparticles,suitable acidity of the catalyst due to the synergic interaction of CuO and ZSM-5 support promoted the dehydration of BDO to THF.