Pd-Al2O3-BEA催化剂催化油脂一步加氢制航空燃油烃类性能
Pd-Al2O3-BEA Catalysts for the Preparation of Jet Fuel-Range Hydrocarbons from Oils Through One-Step Hydrogenation
作者单位E-mail
杜君臣 昆明贵金属研究所, 稀贵金属综合利用新技术国家重点实验室, 昆明 650106;昆明贵研催化剂有限责任公司, 贵金属催化技术与应用国家地方联合工程实验室, 昆明 650106  
张爱敏 昆明贵金属研究所, 稀贵金属综合利用新技术国家重点实验室, 昆明 650106;昆明贵研催化剂有限责任公司, 贵金属催化技术与应用国家地方联合工程实验室, 昆明 650106 aiming.zhang@126.com 
马江丽 昆明贵研催化剂有限责任公司, 贵金属催化技术与应用国家地方联合工程实验室, 昆明 650106  
刘强 昆明贵金属研究所, 稀贵金属综合利用新技术国家重点实验室, 昆明 650106  
冯丰 昆明贵研催化剂有限责任公司, 贵金属催化技术与应用国家地方联合工程实验室, 昆明 650106 feng.feng@spmcatalyst.com 
陈玉保 云南师范大学, 能源与环境科学学院, 昆明 650500  
赵云昆 昆明贵金属研究所, 稀贵金属综合利用新技术国家重点实验室, 昆明 650106  
摘要: 采用浸渍法制备了系列H-β分子筛修饰的Pd/Al2O3催化剂,通过XRD、低温N2吸附、NH3-TPD等分析表征技术和以油酸甲酯为模型化合物的加氢反应体系,探索了H-β分子筛的加入方式和含量对催化剂催化性能的影响。结果表明,由于加入方式不同,Pd-Al2O3-BEA催化剂组成要素之间的相互作用呈现较大差异,从而使其催化性能呈现较大不同。在Pd/(BEA-Al2O3)中,随着H-β分子筛加入量的增加,催化剂的比表面积、孔容、强酸酸量呈增大趋势,弱酸酸量呈先增大后减小趋势,平均孔径呈减小趋势。由于Pd/(45% BEA-Al2O3)催化剂具有合适的微孔孔分布、适中的强酸酸量、最大的弱酸酸量,使其呈现出最大的航空燃油烃类选择性,异构烷烃选择性和一定比例的环烷烃和芳香烃产物。
关键词: Pd/Al2O3催化剂  H-β分子筛  航空燃油烃类  加氢  油脂
基金项目: 国家自然科学基金(No.21266032)资助项目。
Abstract: H-β zeolite modified Pd/Al2O3 catalysts were prepared by impregnation. Effects of adding method and content of H-β zeolite on the catalytic performance were studied by XRD, BET, NH3-TPD and other analytical characterization techniques, as well as the reaction system with methyl oleate as model compounds studied. The results showed that the interaction among the components of Pd-Al2O3-BEA catalyst has a great difference because of the different adding method of H-β zeolite, thus its catalytic properties were greatly different. In the Pd/(BEA-Al2O3) catalysts, with H-β zeolite amount increased, its specific surface area, pore volume, acid amount of strong acid site all showed a trend of increase, while acid amount of weak acid site was first increased and decreased then, and the average pore size was decreased. Pd/(45% BEA-Al2O3) catalyst has the largest jet fuel-range hydrocarbons selectivity, branched alkanes selectivity, a certain proportion of naphthenes and aromatics, since it has an appropriate pore size distribution, moderate amount of strong acid site, the biggest amount of weak acid site.
Keywords: Pd/Al2O3 catalysts  H-β zeolite  jet fuel-range hydrocarbons  hydrogenation  oils
投稿时间:2016-08-24 修订日期:2016-12-06
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杜君臣,张爱敏,马江丽,刘强,冯丰,陈玉保,赵云昆.Pd-Al2O3-BEA催化剂催化油脂一步加氢制航空燃油烃类性能[J].无机化学学报,2017,33(3):415-420.
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