TY - JOUR
T1 - Isomerization of butenes on bismuth molybdate : recirculation and pulse reactions of butenes on koechlinite
AU - Batist, P.A.
AU - van der Heijden, P.C.M.
AU - Schuit, G.C.A.
PY - 1971
Y1 - 1971
N2 - The kinetics of the isomerization of butenes over the Bi2O3-MoO3 (koechlinite) catalyst were investigated in recirculation and in pulse expts. At 150-250 Deg, isomerization prevails over the oxidn. to butadiene. In the recirculation expts., isomerization proved strongly inhibited by butadiene, and the apparent activation energies for isomerization were high (17-19 kcal mole-1). In the pulse expts. where diene inhibition is nonoperative, low activation energies (2-4 kcal mole-1) for isomerization were obsd. Isomerization and oxidn. occur on similar combination of the B and A centers as postulated by Matsuura. This was confirmed by the action of NH3 in a temp. range where isomerization and oxidn. are of comparable rate. Both reactions proved to be strongly inhibited.
AB - The kinetics of the isomerization of butenes over the Bi2O3-MoO3 (koechlinite) catalyst were investigated in recirculation and in pulse expts. At 150-250 Deg, isomerization prevails over the oxidn. to butadiene. In the recirculation expts., isomerization proved strongly inhibited by butadiene, and the apparent activation energies for isomerization were high (17-19 kcal mole-1). In the pulse expts. where diene inhibition is nonoperative, low activation energies (2-4 kcal mole-1) for isomerization were obsd. Isomerization and oxidn. occur on similar combination of the B and A centers as postulated by Matsuura. This was confirmed by the action of NH3 in a temp. range where isomerization and oxidn. are of comparable rate. Both reactions proved to be strongly inhibited.
U2 - 10.1016/0021-9517(71)90213-2
DO - 10.1016/0021-9517(71)90213-2
M3 - Article
SN - 0021-9517
VL - 22
SP - 411
EP - 418
JO - Journal of Catalysis
JF - Journal of Catalysis
IS - 3
ER -