Abstract
The suitability of polymer electrolyte fuel (PEM) cells for stationary and vehicular
applications initiated research in all areas of fuel processor (i.e. reformer, water-gas-shift,
preferential oxidation of CO (PROX)) catalysts for hydrogen generation. Water gas shift
(WGS) reaction is an essential part of these processors because of its role in CO
purification, which poisons the Pt electrodes of PEM, and its role in generating additional
hydrogen. The WGS reaction is well established in conventional large steady-state
operations, such as ammonia plants, but it has found new purpose and challenges to fit
the requirements for energy power generation through fuel cell. More active catalysts are
necessary as large volumes of shift reactors are usually required which would be
responsible for about 50% of the volume of the whole fuel processor. Therefore,
replacing the conventionally two stages WGS, i.e. the high temperature shift and the low
temperature shift, with a single stage WGS shift seems to be promising for reducing the
total volume of fuel processor. In this dissertation, a development of active, selective,
and stable single stage water-gas-shift (WGS) catalyst for H2 production for fuel cell
applications has been investigated. Such efficient catalysts could be used in a H2 selective
catalytic membrane reactor in order to overcome thermodynamic limitations when
temperature is chosen relatively high for improving reaction rate.
Original language | English |
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Awarding Institution |
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Supervisors/Advisors |
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Award date | 9 May 2008 |
Place of Publication | Enschede |
Publisher | |
Print ISBNs | 978-90-365-2644-9 |
Publication status | Published - 9 May 2008 |
Keywords
- IR-59034