has been undertaken with the aim of designing promising noble-metal-free catalysts for efficient hydrodeoxygenation (HDO) of dibenzofuran (DBF) into fuel grade hydrocarbons. For this, various Ni/Al-SBA-15 catalysts with different Si/Al (50, 60, 70 and 80) mole ratios were synthesized and their catalytic performance was tested for HDO of DBF in a batch reactor. The catalysts were systematically characterized
进行这项工作的目的是设计有前途的无
贵金属催化剂,以将
二苯并呋喃(
DBF)高效加氢脱氧(HDO)转化为燃料级碳氢化合物。为此,合成了具有不同Si / Al(50、60、70和80)摩尔比的各种Ni / Al-SBA-15催化剂,并在间歇反应器中测试了它们的催化性能,以评估
DBF的HDO。使用XRD,N 2-吸附-解吸,拉曼,H 2 -TPR,NH 3 -
TPD,XRF和FE
SEM技术对催化剂进行了系统表征。活动结果表明,
DBF的HDO通过
镍位点上的苯加氢,然后裂解酸性位点上的C-O键,生成不饱和烃。Ni位点上的不饱和烃的进一步氢化得到双
环己烷作为主要产物。值得注意的是,除Ni / SBA-15和Ni / Al-SBA-15(80)(Si / Al摩尔比= 80)催化剂外,所有催化剂的
DBF转化率均为100%,分别显示97.97%和99.31% 。在这项研究中注意到的一个重要观察结果是,将Al掺入Ni