油溶性催化剂在悬浮床劣质油加氢中的应用

Application of oil-soluble catalysts in suspended-bed hydrogenation of inferior oil

悬浮床加氢处理技术是目前劣质油及废油深度高效资源化的前沿技术,尤其在难处理废油方面具有独特的优势。由于该技术尚未成熟,各国研究学者的研究重点主要是解决悬浮床加氢处理技术中的结焦问题、开发高活性与高分散性催化剂。其中,油溶性催化剂因其高分散性和低结焦的特点而表现出优异的催化性能,且无须从油中分离从而避免产生二次污染物,但是该类催化剂成本较高,难以实现大规模应用,因此开发成本低廉、催化性能高效的催化剂成为研究的关键。阐述了近几年油溶性催化剂的发展现状,重点对不同油溶性催化剂的制备合成、催化性能、活性位点分析做出总结,最后对油溶性催化剂的发展前景和方向进行了展望。

The suspended bed hydrotreating is considered as an advanced technology for high-efficiency conversion of inferior oil and waste oil with its unique advantages.Since the technology is not yet mature,some research efforts have been devoted to solving the coking problems,developing high activity and high dispersion catalysts.Among them,oil-soluble catalysts exhibit excellent catalytic activity due to their high dispersibility and low coking characteristics.Moreover,it is not necessary for these catalysts to be separated from the oil,avoiding secondary pollutants.However,the cost of catalyst is too high to realize large-scale application.Therefore,developing high-efficiency catalysts with low-cost has become the focus of research.In this paper,the current status of oil-soluble catalysts in recent years was described,focusing on the preparation,catalytic performance and active sites of different oil-soluble catalysts.Finally,the prospects for the challenges and research directions were proposed to shed light on future development of oil-soluble catalysts.