PDF全文下载：2017060044
李振雨1， 刘旭光1*， 张宝泉1,2， 杜芳林1
(1.青岛科技大学 材料科学与工程学院，山东 青岛 266042；2.天津大学 化工学院，天津 300072)
摘要： Ni2PRu/α-Al2O3是一种新型的催化加氢催化剂。该催化剂可以通过TiO2进行改性。所得TiO2-Ni2PRu/α-Al2O3中Ni2P晶粒的尺寸约为18 nm，明显小于Ni2PRu/α-Al2O3中Ni2P晶粒的尺寸(24 nm)。这可能与前驱体的还原性能有关。H2-TPR研究表明：Ni2PRu/α-Al2O3前驱体的峰顶还原温度位于500 ℃左右，而TiO2-Ni2PRuO/α-Al2O3前驱体的中峰顶还原温度分别位于380 ℃和467 ℃左右。此外，H2-TPD的研究发现，TiO2-Ni2PRu/α-Al2O3和Ni2PRu/α-Al2O3催化剂表面都具有丰富的解离氢。但TiO2-Ni2PRu/α-Al2O3对植物油具有更优异的加氢脱氧性能。催化加氢性能的研究表明：Ni2PRu/α-Al2O3催化植物油加氢反应液相产物中未完全反应产物的质量分数小于5%，TiO2-Ni2PRu/α-Al2O3对应的液相产物中未完全反应产物的质量分数则小于1%。
关键词： 二氧化钛(TiO2)； 磷化镍(Ni2P)； 加氢脱氧
中图分类号： O 643.32文献标志码： A
引用格式：李振雨， 刘旭光， 张宝泉， 等. TiO2改性对α-Al2O3负载型磷化镍(Ni2P)催化植物油加氢脱氧的影响\[J\]. 青岛科技大学学报（自然科学版）， 2017， 38（6）： 44-49.
LI Zhenyu, LIU Xuguang, ZHANG Baoquan, et al. Effect of TiO2 modifying nickel phosphide (Ni2P) supported over α-Al2O3 on catalyzing vegetable oil hydrodeoxygenation\[J\]. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2017, 38(6)： 44-49.
Effect of TiO2 Modifying Nickel Phosphide (Ni2P) Supported Over α-Al2O3 on
Catalyzing Vegetable Oil Hydrodeoxygenation
LI Zhenyu1, LIU Xuguang1, ZHANG Baoquan1,2, DU Fanglin1
(1.College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;2.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China)
Abstract: Ni2PRu/α-Al2O3 is a new type catalyst for hydrodeoxygenation. Modification of Ni2PRu/α-Al2O3 with TiO2 is investigated. Crystal size of Ni2P in the obtained catalysts, labelled as TiO2-Ni2PRu/α-Al2O3, is estimated to be 18 nm, which is smaller than that (24 nm) in Ni2PRu/α-Al2O3. This behavior may be related with the reductionability of precursor. It is demonstrated by H2-TPR characterization that the reduction peak temperature of TiO2-Ni2PRu/α-Al2O3 precursor are located around 380 ℃ and 467 ℃, being lower than that (500 ℃) of Ni2PRu/α-Al2O3 precursor.Abundant dissociative hydrogen on the surface of TiO2-Ni2PRu/α-Al2O3 and Ni2PRu/α-Al2O3 are proved by H2-TPD characterization. However, TiO2-Ni2PRu/α-Al2O3 shows better catalytic hydrodeoxygenation performance for vegetable oil. During its catalytic hydrodeoxygenation test, mass content of residual reactants in liquid products is calculated to be less than 1%. Such a value for Ni2PRu/α-Al2O3 is estimated to be less than 5%.
Key words: titanium dioxide (TiO2); nickel phosphide (Ni2P); hydrodeoxygenation
收稿日期： 2016-08-22
基金项目： 国家自然科学基金项目（51272115）.
作者简介： 李振雨(1990—)，男，硕士研究生.*通信联系人.
文章编号： 1672-6987（2017）06-0044-06； DOI： 10.16351/j.1672-6987.2017.06.007
