Hertanto Adidharma

Department of Chemical and Biomedical Engineering

Professor

Contact Information

(307) 766-2909adidharm@uwyo.edu

Engineering Hall 4020

Hertanto Adidharma Image

Our current research explores the phase transitions of pure fluids and fluid mixtures in nanopores – an essential area for applications such as gas separation, shale oil recovery, carbon dioxide capture, and catalysis. We conduct both theoretical and experimental investigations to uncover new insights. Experimental studies take place in the Confined Fluid Behavior Laboratory, where we examine the largely unknown behavior of fluids in nanopores. This state-of-the-art facility features cutting-edge instruments, including the high-pressure low-temperature Calvet-type SETARAM µ-Differential Scanning Calorimeter (DSC), the high-pressure low-temperature SETARAM BT215 DSC, and the HIDEN ISOCHEMA Intelligent Gravimetric Analyzer. On the theoretical side, we are developing an engineering equation of state (EOS) for confined fluids. Our approach builds on the generalized van der Waals partition function, creating a straightforward yet realistic EOS for spherical and chain molecules in confined spaces. Fluid-wall interaction parameters are derived from pore-critical temperature and pressure, while fluid-fluid interaction parameters are taken directly from a bulk EOS.

Education

  • Postdoctoral, Molecular Thermodynamics, Lousiana State University, 2000
  • Ph.D., Chemical Engineering, Lousiana State University, 1999
  • B.S., Chemical Engineering, Institute of Technology, Surabaya, Indonesia, 1987

Reserach Interests

  • Molecular thermodynamics: Complex Systems and Solid Phase
  • Confined Fluids
  • Carbon Dioxide Capture and Utilization

Select Publications

  • Owusu-Banahene, E.K.; Yang, H.; Dejam, M.; Adidharma, H. Capillary Condensation Measurements in Multimodal Nanoporous Media and Pore Critical Point Determination: Methane/Propane Mixture. Langmuir, 2025, 41, 10152-10160.
  • Yang, H.; Dejam, M.; Tan, S.P.; Adidharma, H. Experimental Study on Phase Transitions of Carbon Dioxide Confined in Nanopores: Evaporation, Melting, Sublimations, and Triple Point. Langmuir, 2023, 39, 16060-16068.
  • Yang, H.; Jayaatmaja, K.; Qiu, X.; Fan, M.; Dejam, M; Tan, S.P.; Adidharma, H. Accurate Measurement of the Isothermal Heat of Capillary Condensation in Nanopores Using Differential Scanning Calorimetry and Adsorptions/Desorption Experiments. J. Phys. Chem. C, 2023, 127, 21980-21988.
  • Adidharma, H.; Tan, S.P. Experiments and modeling of vapor-liquid phase transition of fluids confined in nanopores, Ind. Eng. Chem. Res. – Special Issue on Thermophysical Properties for Chemical Industry, 2022, 61, 15488-15513.
  • Yang, H.; Dejam, M.; Tan, S.P.; Adidharma, H. First-Order and Gradual Phase Transitions of Ethane Confined in MCM-41. Phys. Chem. Chem. Phys., 2022, 24, 18161-18168.
  • Yang, H.; Jayaatmaja, K.; Dejam, M.; Tan, S.P.; Adidharma, H. Phase Transition and Criticality of Methane Confined in Nanopores. Langmuir, 2022, 38, 2046-2054.
  • Qui, X.; Yang, H.; Dejam, M.; Tan, S.P.; Adidharma, H. Experiments on the Capillary Condensation/Evaporation Hysteresis of Pure Fluids and Binary Mixtures in Cylindrical Nanopores. J. Phys. Chem. C, 2021, 125, 5802-5815.
  • Adidharma, H.; Tan, S.P. Prototype equation of state for phase transition of confined fluids based on the Generalized van der Waals partition function. J. Chem. Phys., 2021, 154, 111104.
  • Qiu, X.; Tan, S.P.; Dejam, M.; Adidharma, H. Binary fluid mixtures confined in nanoporous media: Experimental evidence of no phase coexistence. Chem. Eng. J., 2021, 405, 127021.
  • Qiu, X.; Tan, S.P.; Dejam, M.; Adidharma, H. Isochoric measurement of evaporation point of pure fluids in bulk and nanoporous media using differential scanning calorimetry. Phys. Chem. Chem. Phys., 2020, 22, 7048-7057.
  • Qiu, X.; Tan, S.P.; Dejam, M.; Adidharma, H. Experimental Study on the Criticality of a Methane/Ethane Mixture Confined in Nanoporous Media. Langmuir, 2019, 35, 11635-11642.
  • Kong, L.; Adidharma, H. A new adsorption model based on generalized van der Waals partition function for the description of all types of adsorption isotherms. Chem. Eng. J., 2019, 375, 122112.
  • Kong, L.; Adidharma, H. A Generalized van der Waals Model for Light Gas Adsorption Prediction in IRMOFs. Phys. Chem. Chem. Phys., 2019, 21, 8906-8914.
  • Tan, S.P.; Qiu, X.; Dejam, M.; Adidharma, H. Critical point of fluid confined in nanopores: Experimental detection and measurement. J. Phys. Chem. C, 2019, 123, 9824-9830.
  • Qiu, X.; Tan, S.P.; Dejam, M.; Adidharma, H. Simple and accurate isochoric differential scanning calorimetry measurements: phase transitions for pure fluids and mixtures in nanopores. Phys. Chem. Chem. Phys., 2019, 21, 224-231.

Honors & Awards

  • Sam D. Hakes Outstanding Graduate Research and Teaching Award, College of Engineering and Applied Science, University of Wyoming, 2017
  • Nominee, the James C. Hurst Each Student-A Person Award, Cowboy Parents, University of Wyoming, 2014
  • Outstanding Teacher Award in Chemical Engineering, Department of Chemical and Petroleum Engineering, University of Wyoming, 2012
  • Helmholtz Award, International Association for the Properties of Water and Steam, 2011
  • David O. Cooney Undergraduate Teaching Award, Department of Chemical and Petroleum Engineering, University of Wyoming, 2009, 2007