OXIDATIVE DEHYDROGENATION OF ETHANE TO ETHYLENE IN THE PRESENCE OF CO2 OVER CR/MCM-41 NANOCATALYST SYNTHESIZED BY ONE-POT HYDROTHERMAL METHOD

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ASGHARI E.; HAGHIGHI M.; RAHMANI F.

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Journal: Journal of Applied Research in Chemistry Year:2016 | Volume:10 | Issue:2 Page(s): 73-83

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Information Journal Paper

Title

OXIDATIVE DEHYDROGENATION OF ETHANE TO ETHYLENE IN THE PRESENCE OF CO2 OVER CR/MCM-41 NANOCATALYST SYNTHESIZED BY ONE-POT HYDROTHERMAL METHOD

Author(s)

ASGHARI E. | HAGHIGHI M. | RAHMANI F. | Issue Writer Certificate

Keywords

CR/MCM-41 NANOCATALYSTQ2

DEHYDROGENATIONQ2

ETHANEQ1

ETHYLENEQ2

CARBON DIOXIDEQ2

Abstract

In this paper, the effect of direct hydrothermal method on the synthesis of Cr (8%) /MCM-41 nanocatalyst was investigated in order to use it in ETHANE DEHYDROGENATION to ETHYLENE with CO2, and the results were compared with impregnation method. The physicochemical properties of the nanocatalysts were characterized by XRD, BET, FESEM, FT-IR, and EDX analysis. XRD analysis confirmed formation of MCM-41 and Cr2O3 crystalline phases. FESEM results demonstrated uniform morphology, small nanoparticles, and narrow distribution of particle size. EDX analysis illustrated homogenous dispersion of Cr species as a result of employing one-pot hydrothermal method. FT-IR results confirmed MCM-41 formation. Based on the characterization results, one-pot hydrothermal method endowed the sample with more uniform, tunable, and smaller nano particle size, leading to modified adsorption properties; and more homogenous dispersion compared to impregnation method. The catalytic experiments were conducted under atmospheric pressure and in the temperature range of 550-700°C with reactant stream consisting of 10% ETHANE, 50% CARBON DIOXIDE and 40% nitrogen. It was found that the direct synthesized nanocatalyst exhibits a reasonable and stable catalytic activity even after 10 hours on-stream operation, giving 42.3 and 97% ETHYLENE yield and selectivity at 700°C, respectively. It exhibits better ETHYLENE selectivity and comparable yield with that of impregnation method.

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APA: Copy

ASGHARI, E., HAGHIGHI, M., & RAHMANI, F.. (2016). OXIDATIVE DEHYDROGENATION OF ETHANE TO ETHYLENE IN THE PRESENCE OF CO₂ OVER CR/MCM-41 NANOCATALYST SYNTHESIZED BY ONE-POT HYDROTHERMAL METHOD. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 10(2), 73-83. SID. https://sid.ir/paper/180026/en

Vancouver: Copy

ASGHARI E., HAGHIGHI M., RAHMANI F.. OXIDATIVE DEHYDROGENATION OF ETHANE TO ETHYLENE IN THE PRESENCE OF CO₂ OVER CR/MCM-41 NANOCATALYST SYNTHESIZED BY ONE-POT HYDROTHERMAL METHOD. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2016;10(2):73-83. Available from: https://sid.ir/paper/180026/en

IEEE: Copy

E. ASGHARI, M. HAGHIGHI, and F. RAHMANI, “OXIDATIVE DEHYDROGENATION OF ETHANE TO ETHYLENE IN THE PRESENCE OF CO₂ OVER CR/MCM-41 NANOCATALYST SYNTHESIZED BY ONE-POT HYDROTHERMAL METHOD,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 10, no. 2, pp. 73–83, 2016, [Online]. Available: https://sid.ir/paper/180026/en

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