Effect on the reaction between methanol and hydrogen sulphide of Na or Mo doping on zirconia and alumina

Autor: Maria Ziolek, A Aboulayt, Jean-Claude Lavalley, Izabela Nowak, J. Czyzniewska, Odette Saur, J. Kujawa
Rok vydání: 1998
Předmět:
Zdroj: Applied Catalysis A: General. 171:109-115
ISSN: 0926-860X
DOI: 10.1016/s0926-860x(98)00070-2
Popis: The effect of sodium doping on alumina and zirconia activity in methanethiol formation from hydrosulphurisation of methanol by H 2 S was studied. It provoked an activity decrease and a selectivity increase in agreement with the catalysts basicity increase. By contrast, molybdenum doped zirconia samples presented a higher activity but a lower selectivity than pure zirconia, as expected from their higher acidity. Increase of the CH 3 OH/H 2 S ratio in the reaction mixture improved both activity and CH 3 SH selectivity. It was found that zirconia loaded with small amounts of molybdenum working under H 2 S excess shows good performances towards CH 3 SH production.
Databáze: OpenAIRE