Catalytic Properties of Alkali-promoted Vanadium Catalysts for Oxidation of Sulfur Dioxide
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584
, E-ISSN: 1608-3210
|
| Output data |
Year: 1997,
Volume: 38,
Number: 6,
Pages: 820-824
Pages count
: 5
|
| Tags |
SO2 OXIDATION; MELTS; DEACTIVATION; V2O5-CS2S2O7; SYSTEMS |
| Authors |
Simonova L.G.
1
,
Bulgakova Y.O.
1
,
Lapina O.B.
1
,
Balʹzhinimaev B.S.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
|
|
Alkali-promoted catalysts M-2' S2O7-M-2 " S2O-rV(2)O(5)/SiO2 (M' = Cs, Rb, and K; M " = K, Na, and Li) of various compositions for synthesis of sulfuric acid were studied in the range of low temperatures and conversions. Light alkali metals M " were shown to be able to increase or decrease the catalytic activity depending on the nature of the main promoter M'. In the context of molecular concepts of the structure of vanadium catalysts and the mechanism of their catalytic activity, plausible reasons for the positive and negative influence of alkali promoters on the rate of oxidation of SO2 to SO3 were discussed