Influence of mo-doping on VPO catalyst for partial oxidation of Ethane

Six MoVPO catalysts were prepared with Mo/V ratios of 0.0, 0.05, 0.1, 0.2, 0.3, 0.5 and P/V of 1.15 for all catalyst, using an isobutanol-benzylacohol solvent. Molydenum was introduced to the VPO catalyst by impregnation. XRD, ICP, BET and SEM were used for the catalyst characterization. A maximum acetic acid yield of 1.1% was obtained using contact time of 3.6 sec. at 573 K and 1360 kPa using VPO catalyst with Mo/V ratio of 0.2 calcined at 723 K under nitrogen flow. At these conditions the ethane conversion was 2.8% and acetic acid and ethylene selectivities were about equal at 37%. Mo has the effect of decreasing the ethane conversion and increasing acetic acid selectively with the initial increase of Mo/V ratio then the selectivity drop to zero at Mo/V ratio then the selectivity drop to zero at Mo/V=o.5. It was found that exposing the catalyst to a reactant mixture lean in ethane at elevated temperature overnight before starting the reaction resulted in an increase in acetic acid selectivity. (author)

Primary SubjectBIOMASS FUELS (S09)
Record TypeJournal article
JournalJournal of Saudi Chemical Society; ISSN 1319-6103;

; v. 9(2); p. 287-296
Country of publicationSaudi Arabia
Descriptors (DEI)ACETIC ACID, CATALYSTS, CHEMICAL REACTIONS, ETHANE, IMPREGNATION, MOLYBDENUM, OXIDATION
Descriptors (DEC)ALKANES, CARBOXYLIC ACIDS, CHEMICAL REACTIONS, ELEMENTS, HYDROCARBONS, METALS, MONOCARBOXYLIC ACIDS, ORGANIC ACIDS, ORGANIC COMPOUNDS, REFRACTORY METALS, TRANSITION ELEMENTS
LanguageEnglish
Reference Number37094760
Publication Year2005
INIS Volume37
INIS Issue40

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