Mesostructured TUD-1 supported molybdophosphoric acid (HPMo/TUD-1) catalysts for n-heptane hydroisomerization

被引:29
作者
Liu, Dapeng [1 ]
Quek, Xian-Yang [1 ]
Hu, Shuangquan [1 ]
Li, Lusi [1 ]
Lim, Hui Min [1 ]
Yang, Yanhui [1 ]
机构
[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore
关键词
TUD-1; HPMo; Bifunctional catalysts; n-Heptane hydroisomerization; CESIUM HYDROGEN SALTS; HETEROPOLY ACIDS; SKELETAL ISOMERIZATION; PENTANE ISOMERIZATION; ALKANES; NMR; DISPROPORTIONATION; STABILITY; HEXANE; RAMAN;
D O I
10.1016/j.cattod.2009.07.017
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Mesoporous molecular sieves TUD-1 (Technische Universiteit Delft) supported molybodophosphoric acid (HPMo) catalysts with various loadings of active HPMo, component (10-50 wt.%) were prepared and characterized using X-ray diffraction, thermal analysis, infrared spectroscopy, Raman spectroscopy and temperature-programmed desorption of ammonia. The characterization results revealed that HPMo was highly dispersed over TUD-1 support in the samples with HPMo loading no more than 30 wt.%. The supported catalysts were tested in the hydroisomerization of n-heptane at atmosphere pressure in the temperature range of 200-350 degrees C. The optimal HPMo content for the reaction was found around 30 wt.%. High isomer selectivity and superior long-term stability were observed over this catalyst. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:S51 / S57
页数:7
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