Bio-fuel production from hydroconversion of hexadecane over Pt/ SAPO-11 catalysts

被引：0
|
作者：
Mu, Chao [1 ]
Sun, Junhao [1 ]
Xie, Chen [1 ]
Xu, Jing [1 ]
Bao, Jinxuan [1 ]
Zhang, Haozhe [1 ]
Zhao, Yujun [1 ]
Wang, Shengping [1 ,2 ]
Ma, Xinbin [1 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China
[2] Ningxia Univ, Sch Chem & Chem Engn, State Key Lab High Efficiency Utilizat Coal & Gree, Yinchuan 750021, Peoples R China
来源：
FUEL | 2024年 / 369卷
关键词：
Hexadecane hydroconversion; Pt/SAPO-11; catalyst; Shape selectivity catalysis; Renewable diesel; Bio-jet fuel; CHAIN N-ALKANES; MOLECULAR-SIEVE; SELECTIVE ISOMERIZATION; PT/ZEOLITE CATALYSTS; SHAPE SELECTIVITY; HYDROCARBON FUELS; JATROPHA OIL; PALM OIL; HYDROISOMERIZATION; HYDROCRACKING;
D O I：
10.1016/j.fuel.2024.131732
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The hydroconversion of normal renewable diesel fractions appears as a pivotal process in the production of biofuel derived from lipids. The adaptability of bio-fuel product distribution to align with market demand necessitates the utilization of catalysts with superior performance in long-chain alkane hydroconversion. The hydroconversion performance of the model compound hexadecane over Pt/SAPO-11 catalysts was comprehensively investigated. The accessibility alpha of B acidity in Pt/SAPO-11 catalysts was determined using Py and DMPyIR, and its impact on hexadecane hydroconversion was addressed. This study revealed that the shape selectivity mechanism in long-chain alkane hydroconversion on Pt/SAPO-11 catalysts involves the combination of the transition state and product shape selectivity catalysis. Pt/SAPO-11-S1, with the largest accessibility factor alpha, reached unprecedented maximum yield levels of 68 %, 87 %, and 37 % for multibranched C 16 H 34 isomers, total C 16 H 34 isomers, and jet fuel fractions, respectively. Additionally, Pt/SAPO-11-S1 exhibited excellent performance for isomerization and jet fuel production in actual renewable diesel hydroconversion. It demonstrates the potential of Pt/SAPO-11 catalysts featuring accessible B acidity in renewable diesel hydroconversion.
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页数：15
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