High iso-alkanes production from palmitic acid over bi-functional Ni/H-ZSM-22 catalysts

被引:31
作者
Cao, Yaya [1 ,2 ]
Shi, Yanchun [2 ]
Liang, Junmei [2 ]
Wu, Yulong [2 ,3 ]
Huang, Shaobin [1 ,4 ]
Wang, Jianlong [2 ]
Yang, Mingde [2 ]
Hu, Husheng [2 ]
机构
[1] South China Univ Technol, Coll Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China
[2] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
[3] Beijing Engn Res Ctr Biofuels, Beijing 100084, Peoples R China
[4] Guangdong Prov Key Lab Atmospher Environm & Pollu, Guangzhou 510006, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
Palmitic acid; Iso-alkanes; Bi-functional catalysts; Ni; H-ZSM-22; DIESEL-LIKE HYDROCARBONS; OXIDE CATALYSTS; HYDRODEOXYGENATION; OIL; PYROLYSIS; NI; DEOXYGENATION; FUELS;
D O I
10.1016/j.ces.2016.10.007
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Bi-functional Ni/H-ZSM-22 catalysts with melt infiltration, incipient wetness impregnation and wet impregnation methods, were used to catalyze palmitic acid. Compared to parent zeolite, there were decrease of relative crystallinity, some blockage effects of micro pores and less strong acid sites after Ni loading. The complete conversion of palmitic acid and 100% alkanes selectivity were achieved at lower temperature (200 degrees C). No deactivation was observed in five recycle reaction, indicating the excellent catalytic performance and stability of Ni/H-ZSM-22 catalysts. Higher reaction temperature (240-260 degrees C), more iso-alkanes/n-alkanes formed, while less C-16/C-15 produced. Additionally, the catalysts prepared by melt infiltration were more inclined to HDO routes and produced more iso-alkanes (0.8 mol ratio of iso-alkanes/n-alkanes) than their counterparts prepared by conventional impregnation methods.
引用
收藏
页码:188 / 195
页数:8
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