Potential for using a tire pyrolysis liquid-diesel fuel blend in a light duty engine under transient operation

Juan Daniel Martínez, Ángel Ramos, Octavio Armas, Ramón Murillo, Tomás García

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    A tire pyrolysis liquid (TPL) has been blended in 5vol.% with commercial diesel fuel (5TPL) and tested in a light-duty diesel Euro 4 engine (with all technologies for meeting Euro 5) under transient operation by means of Road Load Simulation (RLS) and simulating the New European Driving Cycle (NEDC). Commercial diesel fuel has also been tested for comparative purposes. In order to characterize engine operation, parameters such as relative fuel/air ratio, exhaust gas recirculation (EGR) valve opening and coolant temperature have been registered. Regulated (THC, NOx, CO) and unregulated gaseous emissions (CH4, C2H4, C3H6 and SO2), smoke opacity and particulate matter (PM) emissions have been monitored for both fuels (5TPL and diesel fuels) during the tests. The EGR valve opening has resulted to be slightly higher for 5TPL than that for diesel fuel. Although the EGR valve opening has some influence on the gaseous emissions, both properties and composition of the 5TPL also showed an important effect. In this regard, these results have demonstrated the potential usage of the TPL for being blended with commercial diesel fuel for light-duty diesel engines without constructive modifications although some properties of TPL should be improved if the blending percent is intended to be increased. Thus, the reduction of sulfur content seems to be one of the major issues to be overcome if both lower THC and PM emissions, and marginal sulfur poisoning of the catalyst are wished.

    Original languageEnglish
    Pages (from-to)437-446
    Number of pages10
    JournalApplied Energy
    StatePublished - 1 Oct 2014

    Bibliographical note

    Funding Information:
    This study has been carried out under the framework of the PET2008-0103 and POII10-0173-0731 projects financed by the Spanish Ministry of Science and Innovation and Castilla La-Mancha Government respectively. Authors also wish to thank the CAI’s Europa program (Caja de Ahorros de la Inmaculada de Aragón). Ángel Ramos and Juan Daniel Martínez acknowledge their fellowships to the Spanish Ministry of Science and Innovation (associated to the project REACTEC Ref. ENE2010-20768-C03-01) and to Administrative Department of Science, Technology and Innovation (Colciencias), respectively. Authors also wish to thank the technical support provided by Nissan European Technology Centre, Spain and to Dr. Reyes García-Contreras for her collaboration.


    • Diesel engine
    • New European Driving Cycle (NEDC)
    • Pyrolysis
    • Tire fuel
    • Waste tire

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