Renewable aromatic production through hydrodeoxygenation of model bio-oil over mesoporous Ni/SBA-15 and Co/SBA-15
Renewable aromatic production through hydrodeoxygenation of model bio-oil over mesoporous Ni/SBA-15 and Co/SBA-15
复制标题
通过介孔 Ni/SBA-15 和 Co/SBA-15 上的模型生物油加氢脱氧生产可再生芳烃
DOI：
10.1016/j.micromeso.2017.05.022
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发表时间：
2017
影响因子：
5.2
通讯作者：
Du Sujun
中科院分区：
文献类型：
--
作者：
Yang Yongxing;Lv Guangqiang;Deng Liangliang;Lu Boqiong;Li Jinlong;Zhang Jiaojiao;Shi Junyan;Du Sujun
本工作合成了有序介孔材料SBA-15，并将其用作镍、钴活性金属分散的载体。采用XRD、N2吸附、ICP、H2-TPR和TEM等技术对Ni/SBA-15和Co/SBA-15催化剂进行了表征。测试Ni/SBA-15和Co/SBA-15催化剂用于生物油中存在的典型含氧分子的氢化以产生可再生芳族化合物。Ni/SBA-15催化剂对苯甲醚的加氢脱氧反应性能明显优于Co/SBA-15催化剂，但也明显地发现Ni/SBA-15催化剂不可避免地会导致部分加氢脱氧产物甲氧基环己烷的出现。与此相反，苯甲醚分子中甲氧基官能团的直接氢解反应优于Co/SBA-15催化剂，芳烃选择性明显高于Co/SBA-15催化剂。Co/SBA-15可以选择性氢解C单键O键，并且由于其通过直接氢解途径高效去除氧气，因此可以作为生物油生产芳烃的潜在加氢脱氧催化剂。
In present work, ordered mesoporous material SBA-15 was synthesized and used as the support for the dispersion of the nickel and cobalt active metal. XRD, N2sorption, ICP, H2-TPR and TEM techniques were used for the Ni/SBA-15 and Co/SBA-15 catalysts characterization. Both Ni/SBA-15 and Co/SBA-15 catalysts were tested for the hydrogenation of the typical oxygen-containing molecule present in bio-oil in order to produce the renewable aromatic. Ni/SBA-15 catalyst exhibit much higher catalytic performance as compared with Co/SBA-15 catalyst for the hydrodeoxygenation reaction performance of anisole, but it is also obvious that the Ni/SBA-15 catalyst would inevitably lead to the emergence of partial hydrodeoxygenation product methoxycyclohexane. On the contrary, the direct hydrogenolysis of methoxy-functional group from anisole molecule could prevail over the Co/SBA-15, leading to much higher aromatic selectivity over the Co/SBA-15. Co/SBA-15 could selectively hydrogenolyse the Csingle bondO bond and could act as the potential hydrodeoxygenation catalyst for aromatic production from the bio-oils because of its high efficiency in the removal of oxygen by a direct hydrogenolysis route.