Authors:

Mukhtar M Ashur
Tajoura Nuclear research Centre ,P.O.Box 30878, Tripoli- Libya
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Usama Elghawi
Tajoura Nuclear research Centre ,P.O.Box 30878, Tripoli- Libya

M. L. Wyszynski
The University of Birmingham, School of mechanical engineering

Abstract:

On-board exhaust gas assisted gasoline reforming has been investigated using a compact prototype system consisting of a fuel reformer integrated with a three way catalytic converter (TWC) connected to a V6 engine running at homogeneous charge compression ignition (HCCI) mode, the integrated fuel reformer and TWC were designed and constructed to supply reformed exhaust gas recirculation (REGR) stream to the gasoline-fuelled HCCI V6 engine as supplement fuel to improve engine performance and reduce NOx emissions.
To find the optimum operating conditions of the engine-reformer system (in terms of hydrogen production and thermal efficiency), the effect of oxygen to carbon ratio (O2/C) in the reactor input mixture, and the different engine operating conditions were investigated. The reactor outlet temperature appears to be strongly correlated to the production of hydrogen. Concentrations up to 12.8 % of hydrogen in the reformer products were achieved from commercial unleaded gasoline. Uncompleted reforming of gasoline was assumed from significant quantities of hydrocarbons in the product measured by Non-Dispersive Infrared (NDIR). This novel design of an integrated fuel reformer and three-way catalytic converter (TWC) that can be fitted in the EGR loop was applied to extend the lower boundary of the
(HCCI) operating window.

Keywords:

Hydrogen, Exhaust gas reforming, Gasoline reforming

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"An Integrated System of Gasoline Reformer and Three Way Converter for On-board hydrogen Production"