Kinetic study of methylfluorene formation during perhydro-benzyltoluene dehydrogenation on Pt/Al2O3
Abstract
The pair Benzyltoluene (H0BT)/perhydro-benzyltoluene (H12BT) is one of the most relevant Liquid Organic Hydrogen Carriers (LOHC). However, the catalytic dehydrogenation of H12BT is known to produce some methylfluorene (MF) traces that are considered to participate to the catalyst deactivation. Many publications try to develop more resistant catalysts and/or catalysts able to increase the selectivity of the reaction. Elucidating the kinetics of MF (by-product) formation is a key for the further development of new catalytic systems for this reaction. In the present work, 10 experiments were performed at 260 ◦C and atmospheric pressure, with a commercial Pt/Al2O3 catalyst, varying the composition of the reacting mixture (H0BT, H6BT, H12BT and MF) and the mass of catalyst. Using different mathematical tools (COPASI and Python), it was demonstrated that MF was exclusively formed by dehydrocyclisation of the intermediate compound H6BT. The transformation of H6BT appears as the key to drive the selectivity of the reaction.
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BibTeX
@article{marchenko2026kinetic,
title = {{Kinetic study of methylfluorene formation during perhydro-benzyltoluene dehydrogenation on Pt/Al2O3}},
author = {N. Marchenko and M. Kharma and N. Batalha and A. Chappaz and C. Panzone and V. Meille},
journal = {International Journal of Hydrogen Energy},
year = {2026},
month = sep,
doi = {10.1016/j.ijhydene.2026.157055},
url = {https://hal.science/hal-05763757v1},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - Kinetic study of methylfluorene formation during perhydro-benzyltoluene dehydrogenation on Pt/Al2O3
AU - N. Marchenko
AU - M. Kharma
AU - N. Batalha
AU - A. Chappaz
AU - C. Panzone
AU - V. Meille
PY - 2026
DA - 2026/09/08
JO - International Journal of Hydrogen Energy
DO - 10.1016/j.ijhydene.2026.157055
UR - https://hal.science/hal-05763757v1
AB - The pair Benzyltoluene (H0BT)/perhydro-benzyltoluene (H12BT) is one of the most relevant Liquid Organic Hydrogen Carriers (LOHC). However, the catalytic dehydrogenation of H12BT is known to produce some methylfluorene (MF) traces that are considered to participate to the catalyst deactivation. Many publications try to develop more resistant catalysts and/or catalysts able to increase the selectivity of the reaction. Elucidating the kinetics of MF (by-product) formation is a key for the further development of new catalytic systems for this reaction. In the present work, 10 experiments were performed at 260 ◦C and atmospheric pressure, with a commercial Pt/Al2O3 catalyst, varying the composition of the reacting mixture (H0BT, H6BT, H12BT and MF) and the mass of catalyst. Using different mathematical tools (COPASI and Python), it was demonstrated that MF was exclusively formed by dehydrocyclisation of the intermediate compound H6BT. The transformation of H6BT appears as the key to drive the selectivity of the reaction.
SN - 0360-3199
SN - 1879-3487
ER -