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A mini review on oxidative dehydrogenation of propane over boron nitride catalysts

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Petroleum Science 2023年第4期20卷 2488-2498页

作者： Zhu Fu De-Zheng Li Li-Dai Zhou Yu-Ming Li Jia-Wen Guo Yu-Qiao Li Hui-Min Liu Qi-Jian Zhang School of Chemical and Environmental Engineering Liaoning University of TechnologyJinzhouLiaoning121001China State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China

oxidative dehydrogenation of propane is an attractive route for the synthesis of propylene due to its favorable thermodynamic and kinetic characteristics, however, it is challenging to realize high selectivity towards propylene. Recently, it has been discovered that boron nitride (BN) is a promising catalyst that affords superior selectivity towards propylene in oxidative dehydrogenation of propane. Summarizing the progress and unravelling the reaction mechanism of BN in oxidative dehydrogenation of propane are of great significance for the rational design of efficient catalysts in the future. Herein, in this review, the underlying reaction mechanisms of oxidative dehydrogenation of propane over BN are extracted;the developed BN catalysts are classified into pristine BN, functionalized BN, supported BN and others, and the applications of each category of BN catalysts in oxidative dehydrogenation of propane are summarized;the challenges and opportunities on oxidative dehydrogenation of propane over BN are pointed out, aiming to inspire more studies and advance this research field.

关键词： oxidative dehydrogenation of propane Boron nitride Propylene Reaction mechanism

Modeling-based optimization of a fixed-bed industrial reactor for oxidative dehydrogenation of propane

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Chinese Journal of Chemical Engineering 2016年第5期24卷 612-622页

作者： Ali Darvishi Razieh Davand Farhad Khorasheh Moslem Fattahi Department of Chemical and Petroleum Engineering Shiraz UniversityShirazIran Department of Chemical and Petroleum Engineering Sharif University of TechnologyAzadi AvenueTehranIran Department of Chemical Engineering Abadan Faculty of Petroleum Engineering Petroleum University of TechnologyAbadanIran

An industrial scale propylene production via oxidative dehydrogenation of propane （ODHP） in multi-tubular re- actors was modeled. Multi-tubular fixed-bed reactor used for ODHP process, employing 10000 of small diameter tubes immersed in a shell through a proper coolant flows. Herein, a theory-based pseudo-homogeneous model to describe the operation of a fixed bed reactor for the ODHP to correspondence olefln over V2O5/γ-Al203 catalyst was presented. Steady state one dimensional model has been developed to identify the operation parameters and to describe the propane and oxygen conversions, gas process and coolant temperatures, as well as other pa- rameters affecting the reactor performance such as pressure. Furthermore, the applied model showed that a double-bed multitubular reactor with intermediate air injection scheme was superior to a single-bed design due to the increasing of propylene selectivity while operating under lower oxygen partial pressures resulting in propane conversion of about 37.3%. The optimized length of the reactor needed to reach 100% conversion of the oxygen was theoretically determined. For the single-bed reactor the optimized length of 11.96 m including 0.5 m of inert section at the entrance region and for the double-bed reactor design the optimized lengths of 5.72 m for the first and 7.32 m for the second reactor were calculated. Ultimately, the use of a distributed oxygen feed with limited number of injection points indicated a significant improvement on the reactor performance in terms of propane conversion and propylene selectivity. Besides, this concept could overcome the reactor run- away temperature problem and enabled operations at the wider range of conditions to obtain enhanced propyl- ene production in an industrial scale reactor.

关键词： Fixed-bed reactor Mathematical modeling oxidative dehydrogenation of propane Propylene V2O5/γ-Al203 catalyst Optimization

Supported ZnO catalysts for the conversion of alkanes:About the metamorphosis of a heterogeneous catalyst

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Journal of Natural Gas Chemistry 2012年第5期21卷 581-594页

作者： S.Arndt B.Uysal A.Berthold T.Otrebma Y.Aksu M.Driess R.Schomcker Technische Universitāt zu Berlin Institut fūr ChemieStraβe des 17 Juni 12410623 BerlinGermany Akdeniz University Department of Chemistry07058 AntalyaTurkey Technische Universitāt zu Berlin Institut fūr Werkstof fwissenschaftenHardenbergstr 4010623 BerlinGermany

ZnO could be a suitable catalyst for the oxidative conversion of CH4,C2H6 and ***,the main drawback is its thermal ***,ZnO supported on ZrO 2,TiO2,γ-Al2O and SiO2 was investigated for the oxidative dehydrogenation of propane and ethane,and the oxidative coupling of *** stability of the supported ZnO is partially improved,but ZnO reacts with the support material,forming new compounds （Zn-zirconates,-titanates,-aluminates and-silicates）,which already occurs below reaction *** might also be the case for many other heterogeneous catalysts.

关键词： oxidative dehydrogenation oxidative coupling of methane oxidative dehydrogenation of ethane oxidative dehydrogenation of propane ZnO