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- W2039477788 abstract "The deactivation of sulfated zirconia catalysts in the isomerization of n-butane has been studied using a combined TGA/FT-IR technique. Following deactivation at 200°C in the n-butane isomerization reaction, two SO2 desorption maxima centered at 600°C and at 850°C were observed under a flow of N2. Coincidental with the low temperature desorption maximum of SO2 centered at 600°C, a CO2 desorption maximum was also observed. Under an oxygen flow, the coke could be selectively burned off without removing the low temperature sulfur, which results in the complete restoration of the catalytic activity. In a N2 flow, both CO2 and SO2 (low temperature) were removed. The loss of the low temperature sulfur results in a catalyst which is inactive in the isomerization of n-butane. A change in the crystal phase was not observed by XRD as result of the loss of the sulfur evolved at 600°C." @default.
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- W2039477788 date "1997-12-01" @default.
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- W2039477788 title "TGA/FT-IR studies of the deactivation of sulfated zirconia catalysts" @default.
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- W2039477788 doi "https://doi.org/10.1016/s0926-860x(97)00209-3" @default.
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