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Methylcyclohexene and Methylcyclohexadiene Dehydrogenation–Hydrogenation over Pt/Al2O3 Catalyst. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-020-05239-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Akram MS, Aslam R, Alhumaidan FS, Usman MR. An exclusive kinetic model for the methylcyclohexane dehydrogenation over alumina‐supported Pt catalysts. INT J CHEM KINET 2020. [DOI: 10.1002/kin.21360] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muhammad S. Akram
- Institute of Chemical Engineering and TechnologyUniversity of the Punjab Lahore Pakistan
- Institute of Energy & Environmental EngineeringUniversity of the Punjab Lahore Pakistan
| | - Rabya Aslam
- Institute of Chemical Engineering and TechnologyUniversity of the Punjab Lahore Pakistan
| | | | - Muhammad R. Usman
- Institute of Chemical Engineering and TechnologyUniversity of the Punjab Lahore Pakistan
- Petroleum and Chemical Engineering DepartmentSultan Qaboos University Muscat Oman
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Usman MR, Alotaibi FM. Unified kinetics of n-heptane hydroisomerisation over various Pt/zeolite catalysts. PROGRESS IN REACTION KINETICS AND MECHANISM 2016. [DOI: 10.3184/146867816x14646899008350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hydroisomerisation of n-heptane has been carried out over six Pt-loaded zeolite-based catalysts. The activity and selectivity of each catalyst under various operating conditions of temperature, pressure and time were studied. Generally, a low pressure and high temperature favoured the overall n-heptane conversion while the selectivity towards isomers decreased at high temperature as the overall conversion increased to a high value. Based on the initial rates, kinetic modelling of the experimental data was carried out using power law kinetics and a simplified dual-site Langmuir–Hinshelwood–Hougen–Watson (LHHW) model. The LHHW approach was found more appropriate in representing the experimental data obtained over each catalyst and a kinetic model equation developed on the basis of surface reaction rate controlling best fitted to the experimental data. The activation energies were found to be in the range 94–143 kJ mol–1.
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Affiliation(s)
- Muhammad R. Usman
- Institute of Chemical Engineering and Technology, University of the Punjab, Lahore, Pakistan
| | - Faisal M. Alotaibi
- King Abdulazeez City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia
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