首页|Vanadium-magnesium oxides/KIT-6 catalysts for oxidative dehydrogenation of oleic acid to long-chain bio-olefins
Vanadium-magnesium oxides/KIT-6 catalysts for oxidative dehydrogenation of oleic acid to long-chain bio-olefins
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NSTL
Elsevier
This study investigated the effect of magnesium oxide (MgO) incorporation into vanadium-KIT-6 (VKIT-6) catalysts and vanadium oxide (VxOy) contents impregnated into MgO-KIT-6 catalysts on the catalytic activity in the oxidative dehydrogenation of oleic acid to generate long-chain bio-olefins (>= C10). The nMgO-VKIT-6 catalysts containing different Mg/V molar ratios (n = 0.00-1.50) were prepared by the hydrothermal process, while xV/ MgO-KIT-6 catalysts were synthesized via wet-impregnation method with different vanadium contents (x = 0-9 wt%). The Mg/V molar ratios in the nMgO-VKIT-6 catalysts and VxOy contents in the xV/MgO-KIT-6 catalysts strongly affected the catalytic performance and selectivity to the desired products. Both 0.50MgOVKIT-6 and 1 V/MgO-KIT-6 catalysts showed the best catalytic activity for the desired products with selectivity to olefins (alkenes + dienes) and aromatics of 52% and 20%, respectively. The high selective production to the desired products was ascribed to the highly dispersed and isolated VxOy species on the catalysts.
NSTL
Elsevier
