超临界CO_2中对苯二酚催化加氢反应的研究  

Study of Catalytic Hydrogenation of Hydroquinone in scCO_2

作　　者：王洪军[1] 张丽[1] 赵莎莎[1] 

机构地区：[1]长春工业大学化学工程学院,吉林长春130012

出　　处：《广东化工》2010年第2期45-47,共3页Guangdong Chemical Industry

摘　　要：通过超临界CO2介质中对苯二酚催化加氢的研究,探讨了催化剂、超临界CO2压力等反应条件的影响,研究了Pt/C、Pd/C、Ru/C和Rh/C几种催化剂对反应转化率和主要产物1,4-环己二醇选择性的影响,结果表明:Ru/C催化剂的活性最好。研究了超临界CO2压力、反应温度、氢气压力、反应时间等对反应转化率和选择性的影响,根据产物的选择性对该反应路径进行了初步分析。1,4-Cyclohexanediol was prepared through catalytic hydrogenation of hydroquinone in scCO2. The influences of catalyst, the pressure of supercritical CO2, reaction condition on the selectivity of 1,4-Cyclohexanediol and the conversion of hydroquinone were studied. The result showed that the function of catalytic hydrogenation of ruthenium was remarkably better than that of platinum, palladium, rhodium and nickel. The influence of pressure of supercritical CO2, reaction temperature, H2 pressure, reaction time on the conversion and selectivity of reaction was also studied. The reaction pathways were also primary analyzed depending on the selectivity of products.

关 键 词：对苯二酚 超临界CO2 1 4-环己二醇 催化加氢 

分 类 号：TQ[化学工程]