Liquid phase hydrodeoxygenation of anisole, 4-ethylphenol and benzofuran using Ni, Ru and Pd supported on USY zeolite
作者:David P. Gamliel、Stavros Karakalos、Julia A. Valla
DOI:10.1016/j.apcata.2018.04.004
日期:2018.6
between the metals and USY support. Anisole, 4-ethylphenol and benzofuran were used as bio-oil model compounds, in order to determine the effects of each metal on deoxygenation of methoxy-, phenol and furan functional groups, respectively. Pd-USY was the most effective HDO catalyst, exhibiting the highest turnover frequency for HDO of all three model compounds, in addition to and high selectivity to deoxygenated
这项工作的目的是了解金属在三种生物油模型化合物的加氢脱氧(HDO)反应途径中的作用。Ni,Ru和Pd浸渍在USY沸石上,并对催化剂进行了表征,以确定金属的还原曲线,表面浓度和纳米颗粒尺寸。Ru-USY和Pd-USY在低于450°C的温度下被完全还原,但还原后Ni-USY仍包含表面金属氧化物。没有迹象表明金属和USY支撑物之间有很强的相互作用。为了确定每种金属分别对甲氧基,苯酚和呋喃官能团的脱氧作用,将茴香醚,4-乙基苯酚和苯并呋喃用作生物油模型化合物。Pd-USY是最有效的HDO催化剂,除对脱氧产物具有高选择性外,在所有三种模型化合物中均表现出最高的HDO周转频率。提出了每种模型化合物的机理,以及氢化,脱水,C的动力学。测定了C偶联和开环反应。