TY - JOUR
T1 - Acid-base properties of silica-alumina oxides derived from NaX zeolites. Part III. Catalytic activity in dehydration of alcohols and in isomerization of but-1-ene
AU - Vinek, H.
AU - Lercher, J. A.
AU - Noller, H.
PY - 1985/6
Y1 - 1985/6
N2 - NaHX zeolites and amorphous SiO2/Al2O3 oxides (prepared from these zeolites) are compared for their catalytic activity in the dehydration of butan-1-ol and butan-2-ol, conversion of methanol and in the isomerization of but-1-ene. The activity for dehydration (formation of butene and dimethyl ether) was highest for ASX3 (amorphous, 67.1% SiO2), and was significantly lower for ASX1 (NaHX zeolite) and for ASX5 (amorphous, 92.3% SiO2). This suggests a maximum of the total number of acid sites per surface area with ASX3. The double bond isomerization proceeded much faster over ASX3, ASX4 and ASX5 (amorphous, 67.1-92.3% SiO2) than over ASX1 and ASX2 (NaHX zeolites) indicating significantly higher acid strength of the former samples. The similar activities of ASX3 - ASX5 for the isomerization of but-1-ene suggest similar densities and strengths of the strong acid sites.
AB - NaHX zeolites and amorphous SiO2/Al2O3 oxides (prepared from these zeolites) are compared for their catalytic activity in the dehydration of butan-1-ol and butan-2-ol, conversion of methanol and in the isomerization of but-1-ene. The activity for dehydration (formation of butene and dimethyl ether) was highest for ASX3 (amorphous, 67.1% SiO2), and was significantly lower for ASX1 (NaHX zeolite) and for ASX5 (amorphous, 92.3% SiO2). This suggests a maximum of the total number of acid sites per surface area with ASX3. The double bond isomerization proceeded much faster over ASX3, ASX4 and ASX5 (amorphous, 67.1-92.3% SiO2) than over ASX1 and ASX2 (NaHX zeolites) indicating significantly higher acid strength of the former samples. The similar activities of ASX3 - ASX5 for the isomerization of but-1-ene suggest similar densities and strengths of the strong acid sites.
UR - http://www.scopus.com/inward/record.url?scp=0022076885&partnerID=8YFLogxK
U2 - 10.1016/0304-5102(85)85045-8
DO - 10.1016/0304-5102(85)85045-8
M3 - Article
AN - SCOPUS:0022076885
SN - 0304-5102
VL - 30
SP - 353
EP - 359
JO - Journal of Molecular Catalysis
JF - Journal of Molecular Catalysis
IS - 3
ER -