柴油加氢精制催化剂研究进展

随着原油的劣质化和环保法规的日益严格,我国在清洁柴油生产方面面临着十分严峻的局面,所以迫切需要研制具有高效加氢精制的催化剂来满足油品深度加氢处理的要求。多元复合氧化物具有比γ-Al2O3、TiO2和ZrO2更高的比表面积、更好的热稳定性和更强的表面酸碱性,作为催化剂载体已引起很大的研究兴趣并得到了重要的应用。介绍了载体、活性组分、助剂和制备方法(液相浸渍法、沉淀法和溶胶-凝胶法)等因素对催化剂活性的影响。研究得知,溶胶-凝胶法较其它方法有较优的一面。具体探讨了溶胶-凝胶法的制备条件对催化剂活性的影响,也为设计、开发高活性加氢精制催化剂积累了经验。

The Progress in Development of Diesel Hydrofining Catalysts

China is facing a very rigorous situation in the aspects of clean diesel production because of the more strict environmental legislation and decline in quality of petroleum feedstocks. Therefore, it is very important to develop the novel catalysts for diesel hydrofining. The multiple oxide displays higher specific surface area, thermal stability and stronger surface acidity and alkalescence than γ-Al2O3, TiO2 and ZrO2 which has attracted researcher＇s attentions as catalyst carrier. In this paper, effects of factors such as carriers, active components, auxiliary and preparation method （liquid phase-immerse method, precipitation method and sol-gel method） on the catalytic activity are introduced. The study indicates that sol-gel method is better than others. This paper also discusses the effect of sol-gel method preparation conditions on the catalytic activity, and gains experience for design and development of high-activity hydrofining catalyst.