LAPSE:2026.0312
Published Article
LAPSE:2026.0312
Design of a Chemical Heat Pump based on Methylcyclohexane, Toluene and Hydrogen
July 10, 2026. Originally submitted on June 12, 2026
Abstract
The conceptual design and performance of a novel Methylcyclohexane-Toluene-Hydrogen based chemical heat pump was studied using steady state simulations. The distillation operating parameters of the chemical heat pump were optimized to maximize the Coefficient of Performance based on heat quantity (COP) and its corresponding Coefficient of Performance based on electric work input (COPW) was calculated. The best operating temperature ranges of the endothermic and exothermic reactor are 200°C-225°C and 250°C-275°C respectively. An endothermic temperature of 200°C and an exothermic temperature of 250°C results in a COP of 0.1357 and a COPW of 13.3. By integrating this chemical heat pump with a vapor compression heat pump COP increased to 0.1445 while COPW reduced to 4.9.
The conceptual design and performance of a novel Methylcyclohexane-Toluene-Hydrogen based chemical heat pump was studied using steady state simulations. The distillation operating parameters of the chemical heat pump were optimized to maximize the Coefficient of Performance based on heat quantity (COP) and its corresponding Coefficient of Performance based on electric work input (COPW) was calculated. The best operating temperature ranges of the endothermic and exothermic reactor are 200°C-225°C and 250°C-275°C respectively. An endothermic temperature of 200°C and an exothermic temperature of 250°C results in a COP of 0.1357 and a COPW of 13.3. By integrating this chemical heat pump with a vapor compression heat pump COP increased to 0.1445 while COPW reduced to 4.9.
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Krishnadoss R, Bot FL, Adams TA II. Design of a Chemical Heat Pump based on Methylcyclohexane, Toluene and Hydrogen. Systems and Control Transactions 5:879-885 (2026) https://doi.org/10.69997/sct.113117
Author Affiliations
Krishnadoss R: Norwegian University of Science and Technology, Department of Energy and Process Engineering, Trondheim, Norway [ORCID]
Bot FL: ENSTA Paris, Department of Energy, Transports and Space, Paris, France [ORCID]
Adams TA II: Norwegian University of Science and Technology, Department of Energy and Process Engineering, Trondheim, Norway [ORCID]
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Bot FL: ENSTA Paris, Department of Energy, Transports and Space, Paris, France [ORCID]
Adams TA II: Norwegian University of Science and Technology, Department of Energy and Process Engineering, Trondheim, Norway [ORCID]
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Journal Name
Systems and Control Transactions
Volume
5
First Page
879
Last Page
885
Year
2026
Publication Date
2026-06-12
Version Comments
Table 1 format correction and hyperlink correction
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PII: 0879-0885-38-SCT-5-2026, Publication Type: Journal Article
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LAPSE:2026.0312
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https://doi.org/10.69997/sct.113117
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LAPSE:2026.0022
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[v2] (Table 1 format correction and hyperlink...)
Jul 10, 2026
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Jun 12, 2026
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References Cited
- KlinSoda I, Piumsomboon P. Isopropanol-acetone-hydrogen chemical heat pump: a demonstration unit. Energy Conversion and Management 48:1200-1207 (2007) https://doi.org/10.1016/j.enconman.2006.10.006
- Brückner S, Liu S, Miró L, Radspieler M, Cabeza LF, Lävemann E. Industrial waste heat recovery technologies: an economic analysis of heat transformation technologies. Applied Energy 151:157-167 (2015) https://doi.org/10.1016/j.apenergy.2015.01.147
- Usman MR, Aslam R. Dehydrogenation of methylcyclohexane for on-board hydrogen use: initial rate kinetics over 1.0 wt% pt/?-al2o3. Arab J Sci Eng 39:615-620 (2013) https://doi.org/10.1007/s13369-013-0694-y
- Castaño P, Arandes JM, Pawelec B, Fierro JLG, Gutiérrez A, Bilbao J. Kinetic model discrimination for toluene hydrogenation over noble-metal-supported catalysts. Ind. Eng. Chem. Res. 46:7417-7425 (2007) https://doi.org/10.1021/ie070094m
- Agromayor R, Nord LO. Fluid selection and thermodynamic optimization of organic rankine cycles for waste heat recovery applications. Energy Procedia 129:527-534 (2017) https://doi.org/10.1016/j.egypro.2017.09.180
- Woods D. Homogeneous Separation (pp. 86-136). In: Rules of Thumb in Engineering Practice. Wiley-VCH (2007). ISBN 978-35-27312-20-7
- Krishnadoss R, Dyrland IA, Adams TA II. Design and optimization of alcohol-ketone-hydrogen chemical heat pumps. Computers & Chemical Engineering 199:109158 (2025) https://doi.org/10.1016/j.compchemeng.2025.109158
- SPH Sustainable Heat GmbH. "High temperature heat pump ThermBooster." https://spheat.de/thermbooster/?lang=en (accessed 28 Jan, 2026).
- Zühlsdorf B et al. Task 1 report - High Temperature Heat Pumps. Heat Pump Centre (2023). ISBN 978-91-89821-34-7
- Tyminski B, Klepanska A. Vapor-liquid equilibriums in the methylcyclohexane-toluene system. Inz. Chem 7: 193-205 (1977).
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