1,4-cyclohexanedimethanol (CHDM) is used as a high-value polyester monomer. On the basis of the catalysts of RuSn and Pd, the compound catalysts of RuSn and PdCe are prepared by adding the additive Ce to the Pd-based catalyst. The results showed that the yield of CHDM increased by 13.4% after the addition of Ce, indicating that Ce is conducive to the activation of HH and CO thus promoting the hydrogenation of carboxyl groups. Furthermore, the addition of Ce effectively slows down the coverage of the compound on the active component Pd, prolonging the lifespan of the catalyst.

中文翻译：

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Ru[sbnd]Sn和Pd[sbnd]Ce复合催化剂对对苯二甲酸加氢制1,4-环己烷二甲醇的协同催化性能

1,4-环己烷二甲醇（CHDM）用作高价值聚酯单体。在RuSn和Pd催化剂的基础上，在Pd基催化剂中添加添加剂Ce，制备RuSn和PdCe复合催化剂。结果表明，添加Ce后CHDM的收率提高了13.4%，表明Ce有利于HH和CO的活化，从而促进羧基加氢。此外，Ce的添加有效减缓了化合物对活性组分Pd的覆盖，延长了催化剂的寿命。