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Hajitabar Firouzjaee M, Taghizadeh M. Catalytic Performance and Kinetic Modeling of n-Butane Isomerization over Metal Bearing Silicotungstic Acid Supported on Mesoporous KIT-6. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | - Majid Taghizadeh
- Chemical Engineering Department, Babol Noshirvani University of Technology, P.O. Box 484, 4714871167Babol, Iran
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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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Synthesis, Characterization and Applications in Catalysis of Polyoxometalate/Zeolite Composites. INORGANICS 2016. [DOI: 10.3390/inorganics4020013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Yao Y, Wang J, Deng Y, Wang J. Morphological effect of β zeolite nanocrystallite aggregates as the support of Pt catalyst for the hydroisomerization of n-heptane. REACTION KINETICS MECHANISMS AND CATALYSIS 2012. [DOI: 10.1007/s11144-012-0454-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Feng C, Li Y, Liu X. Photocatalytic Degradation of Imidacloprid by Phosphotungstic Acid Supported on a Mesoporous Sieve MCM-41. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201180453] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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LIU P, YAO Y, ZHANG X, WANG J. Rare Earth Metals Ion-exchanged β-Zeolites as Supports of Platinum Catalysts for Hydroisomerization of n-Heptane. Chin J Chem Eng 2011. [DOI: 10.1016/s1004-9541(11)60166-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wei R, Wang J, Xiao G. Hydroisomerization of n-Heptane Over Cr Promoted Pt-bearing H3PW12O40 Catalysts Supported on Dealuminated USY Zeolite. Catal Letters 2008. [DOI: 10.1007/s10562-008-9691-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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