The production of H2 for on-board application is a very interesting challenge for industrial and academic researchers. The aim is the application of on-board hydrogen production on the airplanes using kerosene as H2 source. In this work an in depth study into the partial dehydrogenation (PDH) of two hydrocarbons blends and desulfurized JetA1 fuel has been performed by using 1 wt.%Pt–1 wt.%Sn/γ-Al2O3 and 1 wt.%Pt–1 wt.%Sn–0.5%K/γ-Al2O3 to find a way to produce H2 “on-board” for the feeding of the fuel-cell apparatus. The mechanism of deactivation by coke was studied in depth combining Raman spectroscopy and Temperature-programmed oxidation (TPO) analyses. Microstructure analysis of metallic particles in fresh and deactivated catalysts was investigated by HRTEM. Relatively high H2 partial pressure increases catalyst life by controlling full dehydrogenation coke-forming reaction. By feeding model organic molecules, it was possible to identify the contribution of each class of compounds to the H2 production as well as the amount and type of coke formed. A relatively complex reaction pathway, which is able to evidence the role of different sites and reactions involved in PDH processes, was proposed.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Catalyst deactivation in on-board H2 production by fuel dehydrogenation


    Additional title:

    Katalysator-Deaktivierung bei der H<sub>2</sub>-Produktion an Bord durch Brennstoff-Dehydrierung



    Published in:

    Publication date :

    2014


    Size :

    14 Seiten, 61 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Fuel Reforming and Catalyst Deactivation Investigated in Real Exhaust Environment

    Henry, Cary / Bartley, Gordon / Gukelberger, Raphael et al. | SAE Technical Papers | 2019


    Raman Studies of Automotive Catalyst Deactivation

    O'Neill, Ann E. / Uy, Dairene | SAE Technical Papers | 2006


    Investigation of NOx absorber catalyst deactivation

    Dou,D. / Bailey,O.H. / ASEC,US | Automotive engineering | 1998


    Hydrocarbon deactivation of hydrocarbon SCR catalyst

    Cheng,S.W. / Mulawa,P.A. / General Motors Res.and Dev.Center,US | Automotive engineering | 2009


    Investigation of NOx Adsorber Catalyst Deactivation

    Dou, Danan / Bailey, Owen H. | SAE Technical Papers | 1998