贵金属助剂对费-托合成用钴基催化剂的促进作用

贵金属助剂促进的费-托合成用钴基催化剂具有高活性和长链烃(C₅⁺)选择性优越等特点，被广泛应用于由合成气制清洁燃料的合成反应中。 本文重点讨论了贵金属助剂对活性钴物种的结构（还原度、分散度、双金属颗粒或合金的构成）, 钴基催化剂稳定性以及其对费-托合成的反应速率和产物选择性的影响规律。

Effects of Noble Metal Promoters on Supported Cobalt-Based Fischer-Tropsch Catalysts

Being of high activity and good selectivity in C₅⁺ hydrocarbons, noble metal promoted cobalt Fischer-Tropsch catalysts are widely utilized in carbon monoxide hydrogenation to clean fuels or long chain hydrocarbons. The effects of noble metal promoter on the structure of Co active species are reviewed and discussed in this paper, as well as the reducibility, dispersion, the formation of bimetallic particles or alloy, and the influences on their catalytic performances. Contents
1 Introduction
2 Effects of noble metal promoter on supported cobalt catalysts
2.1 Reducibility of FT cobalt catalysts promoted by noble metal
2.2 Dispersion of noble metal promoted nano-cobalt catalysts
2.3 Formation and effects of bimetallic cobalt-noble metal FT catalysts
3 Effects of noble metal on the deactivation behaviors of promoted FT cobalt catalysts
4 Effects of noble metal addition on the Fischer-Tropsch performances and product distribution
5 Summary