Evaluation of Industrially Applied Heat‐Transfer Fluids as Liquid Organic Hydrogen Carrier Systems. Issue 1 (16th August 2013)

• Record Type: Journal Article
• Authors: Brückner, Nicole; Obesser, Katharina; Bösmann, Andreas; Teichmann, Daniel; Arlt, Wolfgang; Dungs, Jennifer; Wasserscheid, Peter
• Is Part Of: ChemSusChem. Volume 7:Issue 1(2014:Jan.)
• Page Start: 229
• Page End: 235
• Publication Date: 2013-08-16
• Subjects: Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.201300426
• Languages: English
• ISSNs: 1864-5631

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Liquid organic hydrogen carrier (LOHC) systems offer a very attractive method for the decentralized storage of renewable excess energy. In this contribution, industrially well‐established heat‐transfer oils (typically sold under trade names, e.g., Marlotherm) are proposed as a new class of LOHC systems. It is demonstrated that the liquid mixture of isomeric dibenzyltoluenes (m.p. −39 to −34 °C, b.p. 390 °C) can be readily hydrogenated to the corresponding mixture of perhydrogenated analogues by binding 6.2 wt % of H₂. The liquid H₂‐rich form can be stored and transported similarly to diesel fuel. It readily undergoes catalytic dehydrogenation at temperatures above 260 °C, which proves its applicability as a reversible H₂ carrier. The presented LOHC systems are further characterized by their excellent technical availability at comparably low prices, full registration of the H₂‐lean forms, and excellent thermal stabilities.</p> </abstract>