The effect of pretreatment procedures on the activities of Fe- and Mn-promoted sulfated zirconia catalysts
作者： Steven X. Song , Ronald A. Kydd
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摘要: The effect of activation and calcination conditions on the activities Fe- Mn-promoted sulfated zirconia (MFSZ) catalysts for isomerization n-butane at low temperatures (≤90°C) was investigated. Activation in air resulted a higher activity MFSZ than did helium; this is contrast to situation unpromoted (SZ) where atmosphere not affect activity. maximum found occur when temperature 450°C, while SZ, optimum 250°C. Comparison conversions these two showed that only about 1.6 times as active SZ. This difference much less reported before literature comparison made same temperature. attributed different degree synergism between redox acid sites catalysts.
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