THERMAL SCIENCE

International Scientific Journal

Gabriela Berkowicz

,

Jan Wrona

,

Jerzy Baron

,

Dariusz Bradlo

,

Witold Zukowski

CATALYTIC OXIDATION OF METHANOL IN THE CENOSPHERIC FLUIDIZED BED

ABSTRACT
The process of oxidation of gaseous CH3OH by N2O was carried out over an Ag-Fe2O3-cenosphere catalyst whose structure can be defined as double shell-core catalyst. Preparation of the catalyst was carried out in two stages: thermal decomposition of Fe(CO)5 at above 160°C and then electroless Ag plating. The process of methanol degradation by N2O was carried out in a fluidized bed reactor. The study confirms that it is possible to achieve complete degradation of N2O and CH3OH for the obtained catalyst at above 450°C when the contact time of the reactants with the catalyst is approximately 6 second and when the substrates are used in stoichiometric ratios. More than 60% of the hydrogen contained in CH3OH can be converted to molecular hydrogen at 500°C with a ratio of N2O/CH3OH not greater than 0.6 and with a contact time of reactants with the catalyst of approx. 6 seconds.
KEYWORDS
nitrous oxide, methanol decomposition, core-shell catalyst, Ag/Fe2O3-coated cenospheres, catalytic fluidised bed
PAPER SUBMITTED: 1970-01-01
PAPER REVISED: 2019-02-28
PAPER ACCEPTED: 2019-03-03
PUBLISHED ONLINE: 2019-09-22
DOI REFERENCE: https://doi.org/10.2298/TSCI19S4231B
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Supplement 4, PAGES [S1231 - S1240]
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Catalytic oxidation of methanol in the cenospheric fluidized bed

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