化工学报Issue(1):114-120,7.DOI:10.11949/j.issn.0438-1157.20141083
纳/微复合结构TiO2负载催化剂的加氢脱硫性能
Hydrodesulfurization performance of nano/micro-composite TiO2 supported catalysts
摘要
Abstract
With unstable layered K2Ti2O5 as the precursor in the traditional preparation of solid phase sintering, nano/micro-composite TiO2 (TiO2-m) derived from K2Ti2O5 was synthesized via ion-exchange. Supported MoO3/TiO2-m catalysts were prepared by incipient impregnation. Simultaneously, the properties of supports and catalysts were characterized by means of SEM, XRD, BET and TEM. An investigation into the HDS performance of MoO3/TiO2-m catalysts for dibenzothiophene was performed. SEM and XRD results showed that the prepared TiO2-m supports were shaped in nano-scale particle and micron-sized whisker morphology, having the same anatase phase with different morphologies and sizes of TiO2. Compared with pure morphology control sample, HDS tests indicated that Mo catalysts supported on TiO2-m showed the best HDS catalytic activity under relatively mild reaction conditions (310℃, 2.1 MPa, LHSV 6 h−1 and H2/feed ratio 600 m3·m−3 ).关键词
TiO2/复合结构/形貌/加氢脱硫Key words
TiO2/cmposite structure/morphology/hydrodesulfurization分类
化学化工引用本文复制引用
汪怀远,程小双,王池嘉,肖博,蒋凤..纳/微复合结构TiO2负载催化剂的加氢脱硫性能[J].化工学报,2015,(1):114-120,7.基金项目
国家自然科学基金项目(51175066);黑龙江省重点实验室项目(PS13H11)。@@@@supported by the National Natural Science Foundation of China (51175066), and the Provincial Key Laboratory of Oil & Gas Chemical Technology (PS13H11) (51175066)