Efficient Nd Promoted Rh Catalysts for Vapor Phase Methanol Carbonylation

A Nd promoted-Rh catalysts supported on polymer-derived carbon beads for vapor-phase methanol carbonylation was developed. Rh-Nd bimetallic catalysts obviously have higher activity than that of supported Rh catalyst under similar reaction condition. The difference between the activity of above two catalyst systems is clearly caused by the intrinsic properties generated by the introduction of Nd.

甲醇羰基化过程中铑催化剂的迁移行为

本文研究了甲醇羰基化过程中铑催化剂的的迁移行为,通过铑催化剂的迁移行为模型可以解释甲醇羰基化过程中的铑流失、铑催化剂再分布与聚集等重要的催化剂行为特性。铑催化剂进行了50h的连续实验并对催化过程中铑的流失量进行检测。利用X射线光电子能谱及透射电镜对铑催化剂的再分布及聚集现象进行了详细表征和研究,并将实验数据与铑催化剂的迁移行为进行了关联研究。