Viscosity, surface tension, and density of binary mixtures of the liquid organic hydrogen carrier diphenylmethane with benzophenone

Kerscher M, Jander JH, Cui J, Martin M, Wolf M, Preuster P, Rausch MH, Wasserscheid P, Koller TM, Fröba AP (2022)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2022

Journal

International Journal of Hydrogen Energy Elsevier

Book Volume: 47

Pages Range: 15789-15806

Journal Issue: 35

DOI: 10.1016/j.ijhydene.2022.03.051

Abstract

The liquid organic hydrogen carrier (LOHC) diphenylmethane may react to benzophenone in the presence of air, especially at elevated temperatures. Therefore, information about the influence of benzophenone added to diphenylmethane on process-relevant thermophysical properties is required. In the present contribution, the liquid viscosity, surface tension, and liquid density of binary mixtures of diphenylmethane with benzophenone are determined between (283 and 573) K using complementary experimental methods. Investigations on the surface tension by the pendant-drop method and surface light scattering indicate molecular orientation effects of benzophenone at the vapor-liquid interface. With increasing benzophenone content, an increase in density, surface tension, and especially viscosity is found. For the latter property, a distinct change in the temperature dependence is observed at the transition from the liquid to the supercooled liquid state. Furthermore, water dissolved in benzophenone causes changes within 15% and 3% relative to the viscosity and surface tension of benzophenone, respectively.

Authors with CRIS profile

Manuel Kerscher Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Julius Jander Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Junwei Cui Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Max Martin Naturwissenschaftliche Fakultät Michael Rausch Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik Thomas Manfred Koller Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Andreas Paul Fröba Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP)

Additional Organisation(s)

Erlangen Graduate School in Advanced Optical Technologies

Related research project(s)

Thermophysical properties of the LOHC system for conditions related to high-performance release of hydrogen Emissionsfreier und stark emissionsreduzierter Bahnverkehr auf nicht-elektrifizierten Strecken Jan. 1, 2019 - Dec. 31, 2023

Involved external institutions

Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE)

How to cite

APA:

Kerscher, M., Jander, J.H., Cui, J., Martin, M., Wolf, M., Preuster, P.,... Fröba, A.P. (2022). Viscosity, surface tension, and density of binary mixtures of the liquid organic hydrogen carrier diphenylmethane with benzophenone. International Journal of Hydrogen Energy, 47(35), 15789-15806. https://dx.doi.org/10.1016/j.ijhydene.2022.03.051

MLA:

Kerscher, Manuel, et al. "Viscosity, surface tension, and density of binary mixtures of the liquid organic hydrogen carrier diphenylmethane with benzophenone." International Journal of Hydrogen Energy 47.35 (2022): 15789-15806.

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