Conversion of ethanol and isopropanol on alumina, titania and alumina-titania catalysts

Effects of thermal treatment and fluoride ion doping on surface and catalytic properties of NiO–ZrO2catalysts

“…8 intersects the N (acid sites) axis indicating that a minimum number of acid sites per gram catalyst are necessary to initiate dehydration of isopropanol. It seems that dehydration of isopropanol is related to the number of acid sites on the surface of the catalyst rather than to the strength of these acid sites, which agrees well with previous studies [45,46].…”

Catalytic Dehydration of Ethanol to Ethylene on TiO2/4A Zeolite Composite Catalysts

“…It is well known that ethanol dehydration to ethylene is catalyzed by various solid acid catalysts [5], and the surface acidity of catalysts is usually used to estimate their catalytic performance on ethanol dehydration to ethylene [3][4][5][6][7][8][9]. NH 3 -TPD was adopted to characterize the surface acidic properties of the catalysts in this work.…”

“…TiO 2 plays an important role in TiO 2 /SiO 2 or TiO 2 /MgO composite catalyst for dehydration of 2-butanol or 2-propanol and 2-butanol [2]. M. R. Mostafa et al [3]. found that Al 2 O 3 /TiO 2 is more active in ethanol dehydration than either Al 2 O 3 or TiO 2 catalyst.…”

Catalytic dehydration of ethanol using transition metal oxide catalysts

“…Catalytic dehydration of ethanol into ethylene was investigated using different transition metal catalysts such as titanium oxides [1,2], magnesium oxides [3,4], cobalt oxides [5,6], chromium oxide [7], silver salt of tungstophosphoric acid [8], Fe 2 O 3 /Al 2 O 3 [9], FeO x /Al 2 O 3 (prepared using iron and aluminum oxides recovered from steel-pickling chemical waste and aluminum dross tailings, respectively) [10], Fe 2 O 3 , CoO, and NiO/clay [11], iron ion-exchanged mordenite [12], and Na 2 O-doped Mn 2 O 3 /Al 2 O 3 [13]. Also, ethanol dehydration was studied using aluminum and/or silicon oxide materials [14][15][16][17].…”