Characterization and kinetic study of BiMoLax oxide catalysts for oxidative dehydrogenation of 1-butene to 1, 3-butadiene. (2nd October 2015)

• Record Type: Journal Article
• Authors: Wan, Chao; Cheng, Dang-guo; Chen, Fengqiu; Zhan, Xiaoli
• Is Part Of: Chemical engineering science. Volume 135(2015)
• Page Start: 553
• Page End: 558
• Publication Date: 2015-10-02
• Subjects: Bismuth molybdenum -- Lanthanum -- Oxidative dehydrogenation -- Oxygen mobility -- 1-Butene -- Kinetics analysis; Chemical engineering -- Periodicals; Génie chimique -- Périodiques; Chemical engineering; Periodicals; Electronic journals; 660
• DOI: 10.1016/j.ces.2014.08.020
• Languages: English
• ISSNs: 0009-2509

Abstract

Abstract: BiMoLa x oxide catalysts with a variation of lanthanum component were prepared by a co-precipitation method, and applied to the oxidative dehydrogenation (ODH) of 1-butene to 1, 3-butadiene (BD). The results reveal that the lanthanum content has significant effects on the catalyst performance. BiMoLa0.2 exhibits the superior activity and stability during the 100 h test. H2 temperature-programmed reduction (H2 -TPR), 1-Butene temperature-programmed re-oxidation (TPRO) and temperature-programmed desorption (TPD) characterization show that the oxygen mobility and the adsorption ability of 1-butene of catalysts are two crucial factors determining catalytic performance in ODH reaction. The kinetics analysis finds that the ODH reaction over BiMoLa0.2 can occur more easily. Graphical abstract: Highlights: BiMoLa x ( x =0–0.4) oxides are investigated in oxidative dehydrogenation of 1-butene. La addition in Bi–Mo oxide catalyst can promote the catalytic activity. Yield for 1, 3-butadiene could be correlated to the ease of oxygen mobility. BiMoLa0.2 oxide catalyst exhibits very stable performance.