Pd/C催化剂催化氯苯加氢脱氯性能

以氯苯为模型反应原料,采用Pd/C为催化剂催化加氢氯苯脱氯,考察溶剂种类、反应温度、反应压力和反应时间对Pd/C催化剂催化氯苯加氢脱氯性能的影响。结果表明,采用Pd/C为催化剂,以甲醇与水质量比1∶1为溶剂,在反应温度70℃和反应压力0.8 MPa条件下反应100 min,Pd/C催化剂上氯苯转化率超过50%。以甲醇与水质量比1∶1为溶剂,在减少废水和降低成本方面有较大优势。

Catalytic performance of Pd/C catalysts for the hydrodechlorination of chlorobenzene

Using chlorobenzene as the raw material,the effects of reaction temperatures, reaction pressure,reaction time and solvent types on the performance of Pd/C catalyst for chlorobenzene hydrodechlorination were investigated. The results showed that chlorobenzene conversion over Pd/C catalyst was more than 50% under the optimum synthesis condition as follows: reaction temperature 70 ℃,reaction pressure 0.8 MPa, reaction time 100 min and methanol solution with methanol/water mass ratio of 1∶1 as the solvent. The catalytic hydrogenation by using methanol solution with methanol/water mass ratio of 1∶1 as the solvent had more advantages with respect to reducing waste water and production cost.