Pd/Al2O3催化合成2,3,5-三甲基氢醌的连续工艺(Ⅱ) ———催化剂的载体、焙烧温度和活性组分分布类型的选择
来源期刊：中南大学学报(自然科学版)2000年第1期
论文作者：钱东 王开毅 杨礼义 张茂昆
文章页码：41 - 43
关键词：2,3,5-三甲基氢醌; Pd/Al2O3催化剂;载体;焙烧温度;活性组分;合成
Key words：2, 3, 5-trimethylhydroquinone; Pd/Al2O3 catalyst; support; calcination temperature; active component distribution; synthesis
摘 要：利用Pd/Al2O3催化剂,采用固定床连续工艺将2,3,5-三甲基苯醌催化加氢合成得到2,3,5-三甲基氢醌.考察了催化剂的载体、焙烧温度和活性组分分布类型对催化剂初活性和初选择性的影响.通过条件试验,得出:催化剂的载体为Al2O3,催化剂的焙烧温度为300~500℃;选用蛋壳型的催化剂,优化了2,3,5-三甲基氢醌合成的工艺条件.
Abstract: 2, 3, 5-Trimethylhydroquinone was synthesized by catalytic hydrogenation of 2, 3, 5-trimethylbenzoquinone over Pd/Al2O3 catalyst in a fixed-bed continuous process. The effects of the supports, the calcination temperature and the type of active component distribution of catalysts on the initial activity and initial selectivity of catalysts were investigated. By means of some conditional experiments, the support of catalyst was selected to be Al2O3, the calcination temperature of catalystwas selected between 300~500℃and the eggshell catalystwas selected, thereby optimizing the process conditions for synthesizing 2, 3, 5-trimethylhydroquinone.
