Development of a liquid chromatographic method for the separation of a liquid organic hydrogen carrier mixture

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Aslam R, Minceva M, Müller K, Arlt W
Zeitschrift: Separation and Purification Technology
Jahr der Veröffentlichung: 2016
Band: 163
Seitenbereich: 140-144
ISSN: 1873-3794


Abstract


Liquid organic hydrogen carriers (LOHC) are an interesting option for hydrogen storage and transportation. This concept is based on reversible hydrogenation and dehydrogenation of a carrier compound for uptake and release of hydrogen respectively. Among others, dibenzyltoluene is a potential LOHC due to its reasonable hydrogen storage capacity (6.2 ma-%) and high thermal stability. However, a huge number of stable intermediates with different degrees of hydrogenation are observed in a partially hydrogenated reaction mixture of dibenzyltoluene. For the process development and studies of the dibenzyltoluene reaction mechanism, it is crucial to determine physico-chemical properties of its various partially hydrogenated fractions, which requires their isolation from the reaction mixture. In this work, a reversed-phase high performance liquid chromatography (RP-HPLC) method for the separation and purification of partially hydrogenated mixtures of dibenzyltoluene is presented. The method was developed and validated at analytical scale and successfully scaled up to semi-preparative scale. The mixture was separated into four fractions according to their degree of hydrogenations using phenylhexyl silica stationary phase and a mobile phase consisting of acetone/water (96/4, v/v). Fractions with purity above 98% and yield higher than 90% were obtained in a semi-preparative column with an internal diameter of 50 mm.



FAU-Autoren / FAU-Herausgeber

Arlt, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Thermische Verfahrenstechnik
Aslam, Rabya
Lehrstuhl für Thermische Verfahrenstechnik
Müller, Karsten PD Dr.
Lehrstuhl für Thermische Verfahrenstechnik


Zitierweisen

APA:
Aslam, R., Minceva, M., Müller, K., & Arlt, W. (2016). Development of a liquid chromatographic method for the separation of a liquid organic hydrogen carrier mixture. Separation and Purification Technology, 163, 140-144. https://dx.doi.org/10.1016/j.seppur.2016.01.051

MLA:
Aslam, Rabya, et al. "Development of a liquid chromatographic method for the separation of a liquid organic hydrogen carrier mixture." Separation and Purification Technology 163 (2016): 140-144.

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Zuletzt aktualisiert 2018-07-08 um 16:38