Hu X, Huang M, Kinjyo T, Mine S, Toyao T, Hinuma Y, Kitano M, Sato T, Namiki N, Shimizu KI, Maeno Z. Propane dehydrogenation catalysis of group IIIB and IVB metal hydrides.
RSC Adv 2024;
14:23459-23465. [PMID:
39055265 PMCID:
PMC11270002 DOI:
10.1039/d4ra02473g]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 07/06/2024] [Indexed: 07/27/2024] Open
Abstract
Catalytic propane dehydrogenation (PDH) has mainly been studied using metal- and metal oxide-based catalysts. Studies on dehydrogenation catalysis by metal hydrides, however, have rarely been reported. In this study, PDH reactions using group IIIB and IVB metal hydride catalysts were investigated under relatively low-temperature conditions of 450 °C. Lanthanum hydride exhibited the lowest activation energy for dehydrogenation and the highest propylene yield. Based on kinetics studies, a comparison between the reported calculation results and isotope experiments, the hydrogen vacancies of metal hydrides were involved in low-temperature PDH reactions.
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