胶溶剂用量对NiMo/γ-Al_2O_3催化剂加氢脱氧性能的影响  

Effect of peptizator usage on catalytic performances of NiMo/γ-Al_2O_3 for hydrodeoxygenation of FAME

作　　者：商江伟 裴瑞敏 杨浩[1] 景仲雨 席克忠 乔聪震[1] SHANG Jiang-wei PEI Rui-min YANG Hao JING Zhong-yu XI Ke-zhong QIAO Cong-zhen(College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China Zhengzhou United Elites Bioenergy Co., Ltd., Zhengzhou 450001, China)

机构地区：[1]河南大学化学化工学院废弃物资源能源化河南省工程技术研究中心,河南开封475004 [2]郑州侨联生物能源有限公司,河南郑州450001

出　　处：《现代化工》2017年第10期73-76,78,共5页Modern Chemical Industry

基　　金：国家科技支撑计划课题(2013BAB11B02);河南省科技发展计划项目(152102210258)

摘　　要：采用载体挤出成型的方法,通过改变胶溶剂硝酸的加入量制备不同γ-Al_2O_3载体,同时用过量浸渍法负载15%Ni和5%Mo,制备得到Ni Mo/γ-Al_2O_3。通过BET、XRD、SEM等手段对载体和催化剂进行表征,并进行催化脂肪酸甲酯加氢脱氧反应性能评价,探究了载体对催化性能的影响。实验结果表明,当胶溶剂硝酸的质量为拟薄水铝石质量的7.5%,Ni Mo/γ-Al_2O_3催化剂在反应压力为2.9 MPa,反应温度为355℃,液时空速为2.0 h-1时,具有较佳的加氢脱氧性能,原料的转化率为92.5%,液相产品中正构烷烃C15~C18的选择性可达到71.7%。Different γ-Al2O3 supports are prepared by changing the addition amount of peptizator nitric acid in the process of support extrusion. NiMo/γ-Al2O3（15% Ni and 5% Mo） is prepared by excess impregnation method. The supports and catalysts both are characterized by means of BET,XRD and SEM. The effect of supports on the catalytic performance of catalysts is investigated by carrying out evaluation on catalytic performance in the hydrogenation of fatty acid methyl ester（FAME）.Evaluation results reveal that when the addition amount of peptizator nitric acid is 7. 5% of the mass of pseudo-boehmite,reaction pressure is 2. 9 MPa,temperature is 355℃ and LHSV is 2. 0 h^-1,the corresponding NiMo/γ-Al2O3 catalyst show better hydrodeoxygenation performances with the conversion of FAME reaching 92. 5% and the selectivity of n-alkanes（C15-C18） in liquid phase products being 71. 7%.

关 键 词：硝酸 γ-Al2O3载体 NiMo/γ-Al2O3 加氢脱氧 脂肪酸甲酯 

分 类 号：TQ517.2[化学工程]