Acetaldehyde production from ethanol over Ni-based catalysts

被引：0
|
作者：
Neramittagapong, Arthit [1 ,2 ]
Attaphaiboon, Wiphada [1 ]
Neramittagapong, Sutasinee [3 ]
机构：
[1] Khon Kaen Univ, Fac Engn, Dept Chem Engn, Khon Kaen 40002, Thailand
[2] Khon Kaen Univ, Res Ctr Environm & Hazardous Subst Management EHS, Khon Kaen 40002, Thailand
[3] King Mongkuts Inst Technol Ladkrabang, Fac Engn, Dept Chem Engn, Bangkok 10520, Thailand
来源：
CHIANG MAI JOURNAL OF SCIENCE | 2008年 / 35卷 / 01期
关键词：
acetaldehyde; dehydrogenation; ethanol;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The aim of this work was to study the catalytic ethanol dehydrogenation to acetaldehyde over nickel based catalysts. SnO2, Al2O3 and SiO2 were used as supporting materials. The reactions were carried out in a catalytic flow system operated in the temperature range of 200 and 350 degrees C under atmospheric pressure. Various parameters such as Ni loading, a kind of supporting materials, contact time on the ethanol conversion and selectivity to acetaldehyde were investigated. The main product in all cases is acetaldehyde, with secondary products such as ethyl acetate and diethyl ether. It has been found that Ni/SnO2 showed the highest ethanol conversion with high selectivity to acetaldehyde. The 10 wt% Ni/SnO2 exhibited the highest yield of acetaldehyde at 300 degrees C with low contact time (0.05g min ml(-1)). The deactivation of 10 wt% Ni/SnO2 was occurred after 200 minutes on stream due to the formation of Ni - Sn alloy phase.
引用
收藏
页码：171 / 177
页数：7
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