Sulphur-Tolerant Catalysts In Small-Scale Hydrogen Production, A Review

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Abstract

The role of sulphur in the production of hydrogen in the small-scale for fuel cell applications
is an important topic in the design of such systems and this review of the literature
state-of-the-art has been performed to shed light on some of the possible trade-offs that
will have to be done in designing these systems. The review-paper summarises the literature
with respect to sulphur-laden catalysis in small-scale reforming, including the
reforming reactions (steam reforming, partial oxidation and auto-thermal reforming), the
water-gas shift and the catalysis-based CO clean-up methods (methanation and CO preferential
oxidation). By using sulphur-tolerant catalysts, the designer of these types of
systems have a higher degree-of-freedom design-wise and may have a better position in
finding optimum operating points for the systems.
The conclusions drawn from the literature reviewed in turn leads to believe that it may
be possible to use a sulphur-laden fuel, at least in the reforming step and in the WGS
reaction step. There also seem to be a reasonable possibility to operate a system on
a sulphur-containing liquid hydrocarbon, assuming that issues with gasification and prereforming
is sorted, with the catalysts described for the first reaction step. It is however
believed that it is advisable to remove any sulphur before performing a low-temperature
catalytic gas-polishing reaction step.

Detaljer

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Forskningsområden

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Nyckelord

Originalspråkengelska
Sidor (från-till)3978-3992
TidskriftInternational Journal of Hydrogen Energy
Volym37
Utgåva nummer5
StatusPublished - 2012
PublikationskategoriForskning
Peer review utfördJa