首页|Cascade hydrogenation of n-C16 to produce jet fuel over tandem catalysts of modified ZSM-22
Cascade hydrogenation of n-C16 to produce jet fuel over tandem catalysts of modified ZSM-22
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NSTL
Elsevier
? 2022 The Korean Society of Industrial and Engineering ChemistryZSM-22 with one-dimensional straight channels and suitable acid properties is widely applied in the selective hydrocracking of long-chain alkanes to produce middle distillate. In this work, the tandem catalysts with two kinds of modified ZSM-22 were employed in series to optimize the distribution of the product in the hydrotreatment of n-C16 to produce jet fuel. The yield of linear alkanes with high carbon numbers was enhanced over the upstream catalyst bed of Pt/L-HZSM-22 with shielded external acid sites while the isomerization with less further cracking occurred over the downstream catalyst bed of Pt/Me-HZSM-22 with introduced mesopores. The tandem catalysts can combine the ability of Pt/L-HZSM-22 to produce heavy n-alkanes and the stronger isomerization performance of Pt/Me-HZSM-22. The highest yield of jet fuel (～23 wt.%) can be obtained over the tandem catalysts instead of any individual catalyst. The strategy of the tandem zeolite has been initially verified and proposed to broaden the investigation perspectives of the oil refinery.
HydrocrackingJet fuelPt/HZSM-22Tandem catalysts
Li Y.、Sun J.、Wei J.、Mu C.、Zhao Y.、Wang S.、Ma X.
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Key Laboratory for Green Chemical Technology School of Chemical Engineering and Technology Tianjin University
NSTL
Elsevier
