Catalytic exhaust gas fuel reforming for diesel engines - effects of water addition of hydrogen production and fuel conversion efficiency

Athanasios Tsolakis, Athanasios Megaritis

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

Previous work in our laboratory has shown that the exhaust gas assisted fuel reforming process has the potential to provide a solution to the diesel engine exhaust emission problems. When simulated reformer product gas rich in hydrogen is fed to the engine, a reduction of both NO, and smoke emissions can be achieved. In this paper, the optimisation of the reforming process by water addition in the reactor is presented. Using a prototype catalyst at 290degreesC reactor inlet temperature, up to 15% more hydrogen in the reformer product was obtained compared to operation without water. The process has been found to be mainly a combination of the fuel oxidation, steam reforming and water gas shift reactions. The reforming process efficiency has been shown to improve considerably with water addition up to a certain level after which the adverse effects of the exothermic water gas shift reaction become significant. (C) 2004 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)1409-1419
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume29
Issue number13
DOIs
Publication statusPublished - 2 Sep 2004

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