首页|Synthesis of Pt/PMA-MIL-101 Catalyst and Its Performance in n-Heptane Isomerization

Synthesis of Pt/PMA-MIL-101 Catalyst and Its Performance in n-Heptane Isomerization

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Hydroisomerization of n-heptane is an efficient method for producing gasoline with a high octane number.The focus of this study was to find a highly efficient catalyst that could both promote the conversion of n-heptane and inhibit the cracking side reaction.MIL-101(Cr)is a chromium-based metal-organic framework(MOF)with good hydrothermal stability,and exhibits a three-dimensional pore structure that is similar to that of zeolites.Using phosphomolybdic acid(PMA;H3PMo12O40·xH2O)can increase the number of Brønsted acid sites on MIL-101(Cr),which contributes to improving the catalytic performance during isomerization.In this study,0.4％Pt/PMA-MIL-101(Cr)catalyst was successfully crystallized at 220℃ using a hydrothermal synthetic method.The results showed that the synthesized samples were mesoporous-microporous composite materials with the typical octahedral structure,and the MIL-101(Cr)framework was not damaged following modification with PMA.It was found that 0.4％Pt30％ PMA-MIL-101(Cr)exhibited the best performance for isomerization of n-heptane,with a conversion rate and selectivity at 260℃ of 47.6％and 96.6％,respectively.After five hours of reaction,the conversion rate and selectivity of the catalyst remained above 38％and 80％,respectively.

MIL-101(Cr)n-heptaneisomerizationphosphomolybdic acidcatalysis

Zhang Wei、Guo Qiang、Wang Yingjun、Suo Yanhua、Lin Wenqiu、Hu Tengyu、Li Tong、Liu Shetian

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Provincial Key Laboratory of College of Polyolefin New Materials,College of Chemistry and Chemical Engineering,Northeast Petroleum University,Daqing 163318,China

College of Chemical Engineering and Technology,Yantai Nanshan University,Yantai 265706,China

2024

中国炼油与石油化工(英文版)
中国石化集团石油化工科学研究院

中国炼油与石油化工(英文版)

影响因子：1.199
ISSN：1008-6234
年,卷(期)：2024.26(3)