Oxidative Dehydrogenation of Propane with CO2 Oxidant over vanadium catalyst supported on Titania-Silicon Nanostructures

Saei Moghaddam, Mojtaba; Nasehi, Pedram; Asadi, Reza

Oxidative Dehydrogenation of Propane with CO2 Oxidant over vanadium catalyst supported on Titania-Silicon Nanostructures

Document Type : Original Research

Authors

M. Saei moghaddam ¹

P. nasehi ¹

R. asadi ²

¹ Quchan University of Technology

² Zanjan University of Technology

Abstract

Dehydrogenation of alkane to alkene is a key process in petrochemical industry. Propylene has intermediate role to production many industrial polymers. In this research applying oxidative dehydrogenation method for propylene production and CO2 used as oxidant. By use of XRD, Raman, TEM, BET and EDX techniques the results have been analyzed. In XRD and Raman tests anatase phase and Titania nanotubes have been distinguished. TEM confirmed TiNTs with pure structure. Vanadium catalyst with 5% of vanadia synthesized by impregnation method. Adding silicon in support increased thermal stability of catalyst. Raman and XRD method confirmed good distribution of active phase on supports. VSiTi catalyst have 28.31% conversion and 51% selectivity in 550 oC. Improvement in yield of propylene production would be in result of higher surface area and good distribution of vanadia over modified Titania nanotubes.

Keywords

oxidative dehydrogenation

propylene

Titania Nanostructures

Silicon

Subjects

nano-catalyst

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