The role of modified manganese perovskite oxide for selective oxidative dehydrogenation of ethane: Not only selective H2 combustion but also ethane activation

Jin, Fang; Cheng, Xiaojie; Wan, Tianyu; Gong, Jianhong; Liang, Tian; Wu, Guiying

doi:10.1016/j.catcom.2022.106531

Cited by 10 publications

(20 citation statements)

References 35 publications

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“…Ethylene and propylene are essential raw materials in the chemical industry, [1,2] and the selective oxidation of ethane and propane utilizes natural and shale gases to produce olefins or oxygenates. [3][4][5] However, activating the CÀ H bonds of light alkanes (ethane and propane) is difficult, and the chemical properties of olefins and oxygenates are more active than those of alkanes. Thus, achieving high reactant conversion and high selectivity for the target products in the selective oxidation of ethane or propane poses a significant challenge.…”

Section: Introductionmentioning

confidence: 99%

One‐pot synthesis of V doped mesoporous SiO₂ catalysts for selective oxidation of ethane and propane

Song

Fan

et al. 2023

ChemistrySelect

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A series of vanadium‐doped mesoporous SiO2 catalysts were prepared using a one‐pot emulsion method. The effects of VOx species with different structures on C−H bond activation and product selectivity in ethane and propane selective oxidation were investigated using X‐ray diffraction (XRD), N2 adsorption‐desorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman, ultraviolet‐visible diffuse reflectance spectroscopy (UV‐Vis DRS), hydrogen temperature programmed reduction (H2‐TPR), and ammonia temperature programmed desorption (NH3‐TPD) characterizations. The results revealed that the highly dispersed isolated tetrahedral VOx species on the catalyst gradually polymerized into highly dispersed oligomeric VOx species with the increased V loading. The former is beneficial for the formation of olefins and total aldehydes during the selective oxidation of propane. Oligomeric VOx species are conducive to improving the selectivity of ethylene and acetaldehyde in the selective oxidation of ethane. The highest catalytic performances for selective oxidation of ethane and propane were obtained at a temperature of 650 °C. The conversion of ethane was 41.6 %, with a corresponding yield of ethylene and acetaldehyde of 23.6 % over a 0.5 V−SiO2 catalyst. In contrast, the propane conversion was 61.5 %, with a corresponding total yield of olefins and aldehydes of 41.3 % over a 1.0 V−SiO2 catalyst.

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Section: Introductionmentioning

confidence: 99%

One‐pot synthesis of V doped mesoporous SiO₂ catalysts for selective oxidation of ethane and propane

Song

Fan

et al. 2023

ChemistrySelect

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“…[1][2][3][4][5][6] The prevailing C 2 H 4 production route is the steam cracking of hydrocarbons. [1][2][3][4][6][7][8][9][10][11][12][13][14] The steam cracking of ethane (C 2 H 6 ) produces C 2 H 4 and hydrogen (H 2 ) as shown below. [1][2][3]5,6,14,15…”

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confidence: 99%

“…1,3,14 Oxidative dehydrogenation (ODH) of C 2 H 6 is a more energetically and thermodynamically favorable route, shown below. 1,3,6,7,14…”

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confidence: 99%

“…The combination of C 2 H 6 and O 2 created a potentially explosive mixture, detracting from industrial implementation. 1,3,5,7,11,13,15 In addition, O 2 co-feed promotes non-selective oxidation of the desired alkene products to carbon oxides, decreasing C 2 H 4 selectivity and yield. 3,[5][6][7]13,17,20 Further, the co-feed approach requires a cryogenic air separation unit for obtaining high-purity O 2 , both energy and capital intensive.…”

mentioning

confidence: 99%

“…1,3,5,7,11,13,15 In addition, O 2 co-feed promotes non-selective oxidation of the desired alkene products to carbon oxides, decreasing C 2 H 4 selectivity and yield. 3,[5][6][7]13,17,20 Further, the co-feed approach requires a cryogenic air separation unit for obtaining high-purity O 2 , both energy and capital intensive. 11,15 Ideally a C 2 H 6 ODH process should: 1) include separation of C 2 H 6 and oxygen feeds to increase process safety, 2) introduce oxygen in a manner to maximize ethylene selectivity, and 3) utilize inherent oxygen separation.…”

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confidence: 99%

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Electro-Oxidative Dehydrogenation of Ethane to Ethylene Using Lanthanum-Strontium-Iron Oxide Perovskite Electrocatalysts

Kasick,

Hajer,

Wolfe

et al. 2023

J. Electrochem. Soc.

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Developing alternative, industrially viable ethylene production routes has received important research attention. One chemical pathway of interest is the oxidative dehydrogenation (ODH) of ethane, although issues such as product selectivity, combustion hazards, and oxidizer supply have hindered the practical scale-up of this technology. The presented work describes the use of a solid oxide fuel cell (SOFC) platform employing lanthanum-strontium-iron oxide perovskite (La1-xSrxFeO3-δ, or LSFx) electrocatalysts to perform electrochemical-ODH (e-ODH), a process design that has the potential to address the challenges of ODH implementation. The effects of La and Sr stoichiometry, operating temperature, and current density are reported. The highest performance was observed using a La:Sr ratio of 0.50 (LSF0.50) at 750°C and a current density of 0.50 A·cm-2, achieving an ethane conversion of 18.7 ± 0.3%, ethylene selectivity of 91.4 ± 1.9%, and ethylene yield of 17.1 ± 0.1%. These results demonstrate several potential advantages for utilizing a SOFC platform to perform e-ODH of ethane to ethylene.

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CrMn‐based catalysts for oxidative dehydrogenation of propane to propylene with CO₂

Moniri,

Badoga,

Ali

et al. 2024

Can J Chem Eng

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The paper investigates the catalytic oxidative dehydrogenation of propane with carbon dioxide (ODH‐CO2) as a promising route for propylene production, an avenue yet to be commercially developed. Utilizing the incipient wetness catalyst preparation method, CrMn catalysts were synthesized on three supports (γ‐Al2O3, ZSM‐5, and SBA‐15). Comprehensive characterization through Brunauer–Emmett–Teller (BET) analysis, X‐ray diffraction (XRD), thermogravimetric analysis (TGA), transmission electron microscopy (TEM)/scanning transmission electron microscopy (STEM)‐energy‐dispersive X‐ray spectroscopy (EDS), and hydrogen temperature programmed reduction (H2‐TPR) was conducted to comprehend catalyst behaviour. Among the six catalysts tested, Cr/SBA‐15 was exhibited as the best performer, achieving propane and CO2 conversions of 36.2% and 14.1%, respectively, with a propylene selectivity of 33.4%. Over a 50‐h time on stream (TOS), it demonstrated gradual declines in conversions while retaining 75% of initial values. The incorporation of manganese as a promoter effectively mitigated coke formation, albeit with slight reductions in propane conversion and propylene selectivity.

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The role of modified manganese perovskite oxide for selective oxidative dehydrogenation of ethane: Not only selective H2 combustion but also ethane activation

Cited by 10 publications

References 35 publications

One‐pot synthesis of V doped mesoporous SiO₂ catalysts for selective oxidation of ethane and propane

One‐pot synthesis of V doped mesoporous SiO₂ catalysts for selective oxidation of ethane and propane

Electro-Oxidative Dehydrogenation of Ethane to Ethylene Using Lanthanum-Strontium-Iron Oxide Perovskite Electrocatalysts

CrMn‐based catalysts for oxidative dehydrogenation of propane to propylene with CO₂

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The role of modified manganese perovskite oxide for selective oxidative dehydrogenation of ethane: Not only selective H2 combustion but also ethane activation

Cited by 10 publications

References 35 publications

One‐pot synthesis of V doped mesoporous SiO2 catalysts for selective oxidation of ethane and propane

One‐pot synthesis of V doped mesoporous SiO2 catalysts for selective oxidation of ethane and propane

Electro-Oxidative Dehydrogenation of Ethane to Ethylene Using Lanthanum-Strontium-Iron Oxide Perovskite Electrocatalysts

CrMn‐based catalysts for oxidative dehydrogenation of propane to propylene with CO2

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Product

Resources

About

One‐pot synthesis of V doped mesoporous SiO₂ catalysts for selective oxidation of ethane and propane

One‐pot synthesis of V doped mesoporous SiO₂ catalysts for selective oxidation of ethane and propane

CrMn‐based catalysts for oxidative dehydrogenation of propane to propylene with CO₂