Abstract: Steam reforming
of ethanol to H2 using
ZnO catalyst with
promotor metal, i.e.
copper or metal group VIII (Pd,
Pt and Ni) has been investigated. Catalyst’s performances are tested further at
micro reactor operating at atmosphere pressure. Ethanol solution 20% is
injected to reactor at rate of 2 ml/jam and is mixed with nitrogen flow at 25
ml/menit. XRD analysis shows active phases
existence of each
promotor for produced
catalyst. Reaction product includes H2, CO2, and
a nonidentified component.
Selectivity of H2
fromation depends on chosen promotor metal types, where the
selectifity decreases as follows: Pt > Pd > Cu ≈ Ni. Reaction temperature
and promotor concentration
also influence selectifity
H2. For catalyst 1%
Pd/ZnO and 1%
Pt/ZnO, selectivity H2
was optimum at
temperature reaction 450oC. Whereas Pd promotor
concentration’s increasing from 1% to 5% improves H2
selectivity.
Keywords: ethanol, hidrogen,
steam reforming, ZnO
Penulis: Marwan
Kode Jurnal: jpkimiadd090024
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