脱氢用Pd/C催化剂制备及其工艺优化

Preparation of Pd/C catalysts for dehydrogenation and its catalytic process optimization

采用浸渍法制备了一种脱氢专用Pd/C催化剂,研究了其在四氢咔唑脱氢反应中的应用。利用响应面分析法对Pd/C催化剂制备的pH、炭浆体积和反应时间进行了优化,得出最佳工艺条件:pH=7.86,炭浆体积139.76 mL,反应时间75.70 min,咔唑收率接近100%。

Pd/C catalysts were prepared by impregnation method and used in dehydrogenation of 1,2,3,4-tetrahydrocarbazole to carbazole.The preparation condition such as pH value,serosity volume and reaction time were optimized by response surface methodology.The optimum condition was attained as follows：pH value 7.86,serosity volume 139.76 mL and reaction time 75.70 min.The yield of carbazole was close to 100% under the optimum condition.