Analysis of reaction mixtures of perhydro-dibenzyltoluene using two-dimensional gas chromatography and single quadrupole gas chromatography

Modisha PM, Jordaan JHL, Bösmann A, Wasserscheid P, Bessarabov D (2018)

Publication Type: Journal article

Publication year: 2018

Journal

International Journal of Hydrogen Energy Elsevier

Book Volume: 43

Pages Range: 5620-5636

Journal Issue: 11

DOI: 10.1016/j.ijhydene.2018.02.005

Abstract

Energy storage via liquid organic hydrogen carrier (LOHC) systems has gained significant attention in recent times. A dibenzyltoluene (DBT) based LOHC offers excellent properties which largely solve today's hydrogen storage challenges. Understanding the course of the dehydrogenation reaction is important for catalyst and process optimization. Therefore, reliable and exact methods to determine the degree of hydrogenation (doh) are important. We here present other possible techniques, namely: comprehensive two-dimensional gas chromatography coupled with time of flight mass spectrometry (2D-GC-TOF-MS) and single quadrupole-mass spectrometry gas chromatogram system (GC-SQ-MS). The 2D-GC-TOF-MS results indicate that isomer fractions lose three molecules of hydrogen, as follows: H18-DBT, H12-DBT, H6-DBT and H0-DBT, and the doh decreases with an increase in dehydrogenation temperature. 1H NMR and GC-SQ-MS were employed as additional analytical techniques. The GC-SQ-MS was also used to analyse decomposition products that result from thermal cracking of reaction mixture molecules.

Authors with CRIS profile

Andreas Bösmann Lehrstuhl für Chemische Reaktionstechnik Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik

Involved external institutions

Noordwes-Universiteit / North-West University ZA South Africa (ZA)

How to cite

APA:

Modisha, P.M., Jordaan, J.H.L., Bösmann, A., Wasserscheid, P., & Bessarabov, D. (2018). Analysis of reaction mixtures of perhydro-dibenzyltoluene using two-dimensional gas chromatography and single quadrupole gas chromatography. International Journal of Hydrogen Energy, 43(11), 5620-5636. https://dx.doi.org/10.1016/j.ijhydene.2018.02.005

MLA:

Modisha, Phillimon M., et al. "Analysis of reaction mixtures of perhydro-dibenzyltoluene using two-dimensional gas chromatography and single quadrupole gas chromatography." International Journal of Hydrogen Energy 43.11 (2018): 5620-5636.

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