Scaled and green production of C-doped BN derived from biomass waste for highly efficient oxidative dehydrogenation of propane to propylene

Dong Li, Yanjun Chen, Mengyao Sun, Wenwen Ma, Yang Dong, Zean Xie, Lian Kong and Zhen Zhao

Renewable Energy, 2025, vol. 243, issue C

Abstract: Biomass waste can be utilized to develop boron carbonitride (BCN) catalysts with tailorable structures and adjustable performance. In this study, the low-cost carbon-doped boron nitride (CBN) was successfully synthesized via ball milling of pine sawdust as the renewable carbon source, and these catalysts exhibit excellent performance for the oxidative dehydrogenation of propane. The optimized CBN-7.5 catalyst without undergoing any activation treatment exhibited superior catalytic activity compared with other CBN-x and activated BN catalysts. At 520 °C, the catalyst achieved a propane conversion of 76.4 % and an olefin yield of 45.4 %. The results demonstrated that the improved catalytic performance could be attributed to the increased defect sites and active BOx species in h-BN derived from carbon incorporation, along with the high specific surface area and optimal carbon content. This study presents a novel approach for the efficient and sustainable utilization of biomass waste for the oxidative dehydrogenation of light alkanes and large-scale production of borocarbonitride catalysts.

Keywords: Biomass waste; Carbon-doped BN; Oxidative dehydrogenation; Propane (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:243:y:2025:i:c:s0960148125002150

DOI: 10.1016/j.renene.2025.122553

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