2001•Acta Petrolei Sinica(Petroleum Processing Section)Requires access
COMPARISON OF CATALYTIC BEHAVIORS OF SEVERAL MIXED OXIDE STRONG SOLID ACID IN ISOBUTANE-BUTENES ALKYLATION
Wen‐Hua Sun
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Abstract
The structural characterization and acid site measurements of several zeolites (HZSM 5, HY, H β ) and mixed oxide solid acids (SO 2- 4/ZrO 2, WO 3/ZrO 2) were carried out by XRD、IR、NH 3 TPD and Hammett indicators etc.. Catalytic behaviors were investigated under similar conditions. Catalytic activity of isobutane butene alkylation is suggested to be expressed as butene conversion in the order of: H β HYWO 3/ZrO 2SO 2- 4/ZrO 2HZSM 5. Alkylate distributions for different catalysts were rather different. The differences in catalytic behaviors of alkylation among various solid acids were analyzed in detail on the basis of the reaction mechanisms and also the physicochemical properties of those solid acids. H β and HY are hopefully to be used as candidates of the alkylation catalyst.