Coal as an Effective Catalyst for Selective Oxidative Dehydrogenation of Propane to Propene.

Liu, Qiuwen; Zhang, Yuhua; Wu, Yawei; Song, Mingxia; Huang, Caijin

Coal is a readily available and inexpensive material. However, its direct use as a catalyst is still rare, but attractive for practical application. In this paper, coal was directly used as a catalyst for the selective oxidative dehydrogenation of propane to propene. It exhibited a high selectivity over 90% with a yield of 8.4% at a high space velocity (12,000 mL·(h·g-cat)−1). The productivity up to 2.84 gC3H6 gcat−1 h−1 was obtained with propene selectivity above 80% (20,000 mL·(h·g-cat)−1). The kinetic showed first-order dependence with respect to propane or oxygen partial pressures. Meanwhile, electron paramagnetic resonance (EPR) and X-ray photoelectron spectrum (XPS) demonstrated that the carbonyl groups act as active sites for oxidative dehydrogenation of propane to propene. This work expands the use of earth-abundant and low-price coal in catalysis with expectable scale application.

OXIDATIVE dehydrogenation; PROPENE; X-ray photoelectron spectra; ELECTRON paramagnetic resonance; COAL

Catalysts (2073-4344), 2023, Vol 13, Issue 3, p628

2073-4344

Academic Journal

10.3390/catal13030628