A packed-bed membrane reactor in a distributor configuration is studied theoretically for the oxidative propane dehydrogenation and compared with fixed-bed reactor. Based on detailed 2D models considering two different heat mass transport scale-up including various reactor-to-particle diameter ratios (D/dP) analyzed respect to performance, transfer hot spot formation. Higher selectivities at lo...

Abstract The catalytic oxidative dehydrogenation of propane (ODHP) is a challenging reaction due to facile competing overoxidation CO x . gaseous disulfur molecule, S 2 , isoelectronic with O and has been shown act as an alternative, “soft oxidant” for the analogous process (SODHP) over bulk metal sulfide catalysts. However, these catalysts suffer from low surface areas ill‐defined active sites...

Bulk boron materials, such as hexagonal nitride (h-BN), are highly selective catalysts for the oxidative dehydrogenation of propane (ODHP). Previous attempts to improve productivity these systems involved immobilization on silica and resulted in less catalysts. Here, we report that acid-treated, activated carbon-supported prepared via incipient wetness impregnation with boric acid (B/OAC) exhib...

High-surface-area mesoporous CexZr1-xO2 materials synthesized through a surfactant-assisted approach of nanocrystalline particle assembly are utilized as promising support for VOx-based catalysts. The catalytic properties the resultant VOx/CexZr1-xO2 nanocatalysts evaluated by oxidative dehydrogenation propane using microreactor-GC system. It is indicated that catalyst particles ...

Fifteen distinct MgO–V2O5, MgO–MoO3, MgO–V2O5–MoO3, and V2O5–MoO3 compositions were prepared using sol–gel chemistry and their selectivities and conversions for propane oxidative dehydrogenation (ODH) to propylene were measured. The vanadates were more active than the molybdates at lower temperatures; however, the molybdates exhibited higher selectivities at similar conversions. An increase in ...

Abstract CeO 2 , V O 5 and CeVO 4 were synthesised as bulk oxides, or deposited over activated carbon, characterized by XRD, HRTEM, CO -TPO, C 3 H 8 -TPR, DRIFTS Raman techniques tested in propane oxidative dehydrogenation using . Complete oxidation of to is favoured lattice oxygen The temperature programmed experiments show the ~ nm AC supported crystallites become more susceptible reduction p...

The oxidative dehydrogenation of propane to propene using carbon dioxide is an attractive novel synthesis route produce a key platform chemical. We investigated iron-chromia catalysts prepared by sol-gel. mixed oxides showed improved specific surface area and high concentration acid base sites were found be highly active catalysts. Although coking was observed over the catalysts, regeneration r...