@article{e64020c0daa141d4ab5627bb05422d5c,
title = "Ni/CNT/Zeolite-Y composite catalyst for efficient heptane hydrocracking: Steady-state and transient kinetic studies",
abstract = "The effect of integrating carbon nanotubes (CNTs) into a bi-functional Ni-Zeolite-Y catalyst was studied for the hydrocracking of heptane at 350 and 400 °C (total pressure of 5 bar). It was shown that the growth of CNTs on the surface of Ni-Zeolite-Y (Ni-ZY) results in enhanced stability and catalytic activity (conversion increased by 22% at 350 °C) compared to the conventional Ni-ZY. A significant increase in the initial transient kinetic rates of CH4 and C2H6 formation was also noticed. The CNT/Ni-ZY also showed reduced coke formation during the reaction as entailed by transient isothermal (400 °C) oxidation experiments. The formation of a crystalline NixCy phase on the zeolite surface was observed in the case of CNT/Ni-ZY, potentially responsible for its enhanced catalytic performance. This work demonstrates that the integration of CNTs in hydrocracking catalysts offers new opportunities for enhancing their catalytic activity, selectivity and coking resistance.",
keywords = "Bi-functional catalyst, Carbon nanotubes, Hydroprocessing, Surface acidity, Transient kinetics",
author = "Roba Saab and Damaskinos, {Constantinos M.} and Kyriaki Polychronopoulou and Efstathiou, {Angelos M.} and Nikolaos Charisiou and Maria Goula and Hinder, {Steven J.} and Baker, {Mark A.} and Andreas Schiffer",
note = "Funding Information: The authors gratefully appreciate the financial support from the Abu Dhabi Department of Education and Knowledge (ADEK), United Arab Emirates through the Award for Research Excellence (AARE) 2017 (grant number AARE17-270 ), and the Research Committee of the University of Cyprus , Cyprus. This publication is partially based upon work supported by the Khalifa University of Science and Technology , United Arab Emirates (grant number RC2-2018-024 ). Funding Information: The authors gratefully appreciate the financial support from the Abu Dhabi Department of Education and Knowledge (ADEK), United Arab Emirates through the Award for Research Excellence (AARE) 2017 (grant number AARE17-270), and the Research Committee of the University of Cyprus, Cyprus. This publication is partially based upon work supported by the Khalifa University of Science and Technology, United Arab Emirates (grant number RC2-2018-024). Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",
year = "2022",
month = jan,
day = "25",
doi = "10.1016/j.apcata.2021.118437",
language = "British English",
volume = "630",
journal = "Applied Catalysis A: General",
issn = "0926-860X",
publisher = "Elsevier B.V.",
}