化工进展2015，Vol.34Issue(12)：4229-4237,9.DOI:10.16085/j.issn.1000-6613.2015.12.016
固定床渣油加氢催化剂表面积炭及抑制研究进展
Research progress of coke deposition and inhibition on fixed bed residue hydrogenating catalysts
摘要
Abstract
Fixed bed residue hydrogenation technology is an important means of making heavy oil lighter. Coke deposition is one of the important reasons leading to catalyst deactivation and shorter running period of residue hydrogenation unit. The source of catalyst coke deposition,the type of coke, the mechanism of coke deposition,the factors affecting coke deposition and the methods to inhibit coke deposition are discussed and outlined. There are two types of coke deposition:soft coke and hard coke, mainly from dehydrogenative condensation reactions of polyaromatic species,such as asphaltene,and these substances adsorb on the catalyst surface easily. The properties of residue oil,catalyst physicochemical characteristics and process condition have important effect on coke formation. Lower viscosity residue oil,the catalyst with bigger pore size and higher hydrogen pressure can reduce coke content. Blending residue oil with low viscosity and high aromaticity distillate in the reaction process can effectively inhibit coke formation. The review provides reference for effectively controlling catalyst coke deposition and prolonging catalyst life time.关键词
固定床/渣油加氢/表面积炭/催化剂失活Key words
fixed bed/residue hydrogenation/coke deposition/catalyst deactivation分类
能源科技引用本文复制引用
林建飞,胡大为,杨清河..固定床渣油加氢催化剂表面积炭及抑制研究进展[J].化工进展,2015,34(12):4229-4237,9.基金项目
中国石油化工股份有限公司合同项目. （）
