摘要
采用煤质活性炭作载体,分别用HNO3、H2O2和(NH4)2S2O8进行预处理,然后用浸渍法负载PdCl2,在H2流中还原得到Pd/C催化剂,用于肉桂醛(CAL)选择加氢制氢化肉桂醛(HCAL)的反应。考查了Pd负载量,反应温度和压力对加氢反应的影响,优化了反应条件。进一步考查了助剂Fe、Co、Ni[1]对反应的影响。最终,CAL转化率为98%,HCAL选择性为88%。
Coal-based activated carbon was pretreated with HNO3, H2O2 and（ NH4）2S2O8 before selected as support. A series of Pd/C catalysts were prepared by means of impregnation and with PdCl2 as precursor. It was reduced in H2 stream, and applied to selective hydrogenation of cinnamaldehyde to hydrocinnamaldehyde. Effects of Pd-loading, reaction temperature and pressure were discussed. In addition, promoters of Fe, Co, Ni were introduced to the catalysts. At last proper conditions for the reaction were found, and 88 % selectivity to HCAL at 98 % conversion of CAL was obtained.
出处
《福建林业科技》
北大核心
2006年第2期25-28,共4页
Journal of Fujian Forestry Science and Technology
基金
国家自然科学基金(No.20203014)
关键词
PD/C催化剂
α-β不饱和醛
选择加氨
肉桂醛
氢化肉桂醛
Pd/C catalyst
α-β-unsaturated aldehyde
selective hydrogenation
cinnamaldehyde
hydrocinnamaldehyde
