Abstract: Pd-Pb-Bi/ CaCO3 catalysts were prepared by impregnation for the selective hydrogenation of dehydrolinalool to linalool. The activity of the catalysts with different Pd content was inspected. It was found that the catalysts with 1.5% Pd content showed a higher activity. At 60—65℃ and 0.6MPa with a total catalyst amount of 0.5%，the conversion of dehydrolinalool was higher than 99% and the selectivity for linalool was higher than 96%. The change in catalyst composition upon reused for 7 times was evaluated by using ICP，and the effect of Pb and Bi to the catalytic behavior was discussed.

摘要： 采用浸渍法制备了Pd-Pb-Bi/CaCO3催化剂，考察了钯质量分数对催化剂活性的影响，并对催化剂加氢性能进行了评价。结果表明，钯质量分数为1.5%的催化剂活性较高，在反应温度为60～65 ℃，系统压力为0.6 MPa，催化剂用量为原料质量的0.5％，去氢芳樟醇转化率大于99%时，芳樟醇选择性大于96%，催化剂套用7次后，利用ICP对使用前后催化剂的组成进行分析后，根据反应结果分析了Pb和Bi对加氢反应的作用。