稠环芳烃加氢饱和催化剂研究进展  

Research progress on the catalysts for saturated hydrogenation of polycyclic aromatic hydrocarbons

作　　者：刘道诚 王九占 荆洁颖[1] 杨志奋 冯杰[1] 李文英[1] LIU Daocheng;WANG Jiuzhan;JING Jieying;YANG Zhifen;FENG Jie;LI Wenying(Training Base of State Key Laboratory of Coal Science and Technology,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China)

机构地区：[1]太原理工大学煤科学与技术省部共建国家重点实验室培育基地,山西太原030024

出　　处：《化工进展》2021年第2期835-844,共10页Chemical Industry and Engineering Progress

基　　金：国家重点研发计划(2016YFB0600305);国家自然科学基金(21978190,U1610221)。

摘　　要：受共振能、空间位阻和竞争吸附等方面的影响,稠环芳烃末环的吸附活化是其加氢饱和反应的重点和难点之一。本文系统综述了稠环芳烃加氢饱和反应特点及各类稠环芳烃加氢饱和催化剂。分析表明,稠环芳烃吸附活化与其分子自身的属性和催化剂的性质密切相关,调控催化剂中活性金属的电子状态可有效促进稠环芳烃分子的吸附活化。针对常见稠环芳烃加氢饱和催化剂,本文分类阐述了各类稠环芳烃加氢饱和催化剂的活性相结构、活性位点数量和活性金属电子密度的调控方法。分析指出,提高活性组分的分散度和形成活性金属的缺电子状态能够提升催化剂的加氢活性,可通过调节载体的酸性和添加助剂等方法实现。The hydrogenation of polycyclic aromatic hydrocarbons can be inhibited by the adsorption and activation of their final aromatic ring,which is attributed to the increased resonance energy,steric hindrance and competitive adsorption among saturated products.In this work,the characteristics of hydrogenation process and hydrogenation catalysts were reviewed.The analysis indicated that the adsorption and activation process was closely related to the properties of the molecules and the catalysts.Moreover,tuning the electronic state of the active metal could promote the adsorption and activation of polycyclic aromatic hydrocarbons effectively.Meanwhile,the methods of adjusting active phase structure,increasing the number of active sites and modifying the active metal electron density of several hydrogenation saturated catalysts were also described in detail.It was concluded that improving the dispersion of active component and forming the electron-deficient state of active metals were beneficial to the further improvement of the hydrogenation activity of the catalysts,which could be effectively realized by adjusting the support's acidity and introducing additives.

关 键 词：稠环芳烃 加氢 吸附活化 催化剂 分散度 电子状态 载体酸性 

分 类 号：TQ536[化学工程—煤化学工程]