scholarly journals Direct Measurement of Interaction Energy between Solids and Gases. II. Microcalorimetric Studies on the Surface Acidity and Acid Strength Distribution of Solid Acid Catalysts

1978 ◽  
Vol 51 (7) ◽  
pp. 1965-1969 ◽  
Author(s):  
Tatsuo Masuda ◽  
Hitofumi Taniguchi ◽  
Kazuo Tsutsumi ◽  
Hiroshi Takahashi
Keyword(s):  
Interaction Energy ◽  
Direct Measurement ◽  
Solid Acid ◽  
Surface Acidity ◽  
Acid Strength ◽  
Strength Distribution ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Acid Strength Distribution

Preparation of Strong Acid Catalysts by Sulfate Treatment of Calcined Boehmite

1992 ◽  
Vol 57 (11) ◽  
pp. 2241-2247 ◽  
Author(s):  
Tomáš Hochmann ◽  
Karel Setínek
Keyword(s):  
Catalytic Activity ◽  
Surface Area ◽  
Aluminum Sulfate ◽  
Solid Acid ◽  
Strong Acid ◽  
Acid Strength ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Preparation Methods ◽  
Indicator Method

Solid acid catalysts with acid strength of -14.52 < H0 < -8.2 were prepared by sulfate treatment of the samples of boehmite calcined at 105-800 °C. Two preparation methods were used: impregnation of the calcined boehmite with 3.5 M H2SO4 or mixing of the boehmite samples with anhydrous aluminum sulfate, in both cases followed by calcination in nitrogen at 650 °C. The catalysts were characterized by measurements of surface area, adsorption of pyridine and benzene, acid strength measurements by the indicator method and by catalytic activity tests in the isomerization of cyclohexene, p-xylene and n-hexane. Properties of the catalysts prepared by both methods were comparable.

Relationship between surface acidity and activity of solid-acid catalysts in vapour phase dehydration of methanol

2009 ◽  
Vol 90 (9) ◽  
pp. 1093-1098 ◽  
Author(s):  
M. Mollavali ◽  
F. Yaripour ◽  
Sh. Mohammadi-Jam ◽  
H. Atashi
Keyword(s):  
Solid Acid ◽  
Surface Acidity ◽  
Vapour Phase ◽  
Solid Acid Catalysts ◽  
Acid Catalysts
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