The oxidative dehydrogenation of propane with CO2 over supported Mo2C catalyst

Solymosi, F.; Németh, Róbert; Oszkó, A.

doi:10.1016/s0167-2991(01)80326-8

Cited by 26 publications

(24 citation statements)

References 16 publications

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“…Attempts were also made to produce synthesis gas by the reactions of C 2 H 6 and C 3 H 8 with CO 2 . Whereas in the absence of CO 2 the dehydrogenation of C 3 H 8 was the major process, in the presence of CO 2 the formation of H 2 + CO 2 came into prominence [5][6][7][8][9][10]. As regards the dry reforming of C 3 H 8 , Rh and Ru also exhibited the highest specific activity [5].…”

Section: Introductionmentioning

confidence: 99%

“…Many of the above cited studies revealed that the nature of the support plays an important role in the activity and selectivity of different catalysts. The best example is Mo 2 C. Whereas Mo 2 C/ SiO 2 catalyzed the dehydrogenation of C 3 H 8 [10], using ZSM-5 as a support the aromatization of C 3 H 8 became the main reaction pathway [11]. Several studies have been also performed on the oxidative dehydrogenation of propane with molecular O 2 on oxide catalysts [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Reactions of propane with CO2 over Au catalysts

Tóth¹,

Halasi²,

Bánsági³

et al. 2016

Journal of Catalysis

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The decomposition of C 3 H 8 and its reaction with CO 2 have been investigated on Au deposited on ZnO, MgO and Al 2 O 3. The reactions proceeded above 650-700 K. The conversion of C 3 H 8 was only few percents on Au/MgO and Au/Al 2 O 3 , even at 873 K, but reached $17% on Au/ZnO. The selectivity of propylene formation was about 56%. CO 2 only slightly affected the reaction of C 3 H 8 on Au/Al 2 O 3 and Au/MgO, but significantly enhanced the conversion of C 3 H 8 on Au/ZnO catalyst. The formation of large amount of CO indicates the involvement of CO 2 in the reaction of C 3 H 8. From the product distribution it was inferred that beside the oxidative dehydrogenation and dry reforming reaction, the decomposition of C 3 H 8 into CH 4 and surface carbon also occurred. The effect of ZnO is explained by an electronic interaction between n-type ZnO and Au particles leading to a formation of reactive CO 2 À .

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reactions of propane with CO2 over Au catalysts

Tóth¹,

Halasi²,

Bánsági³

et al. 2016

Journal of Catalysis

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“…Previous work shows that typical catalysts used for CO 2 -assisted dehydrogenation of ethane are Ga-based oxides (6,8), Cr-based oxides (9,(12)(13)(14)(15)(16), Co-based oxides (17,18), metal carbides (1,19), and other catalysts (7,20,21). However, details are lacking on the nature of the active sites for the activation of CO 2 and ethane and how to selectively control the C-H and C-C bond scission to increase the ethylene selectivity.…”

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confidence: 99%

Active sites for tandem reactions of CO ₂ reduction and ethane dehydrogenation

Yan

Yao

Kattel

et al. 2018

Proc. Natl. Acad. Sci. U.S.A.

112

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Ethylene (CH) is one of the most important raw materials for chemical industry. The tandem reactions of CO-assisted dehydrogenation of ethane (CH) to ethylene creates an opportunity to effectively use the underutilized ethane from shale gas while mitigating anthropogenic CO emissions. Here we identify the most likely active sites over CeO-supported NiFe catalysts by using combined in situ characterization with density-functional theory (DFT) calculations. The experimental and theoretical results reveal that the Ni-FeO interfacial sites can selectively break the C-H bonds and preserve the C-C bond of CH to produce ethylene, while the Ni-CeO interfacial sites efficiently cleave all of the C-H and C-C bonds to produce synthesis gas. Controlled synthesis of the two distinct active sites enables rational enhancement of the ethylene selectivity for the CO-assisted dehydrogenation of ethane.

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“…It should be noted that catalysts with redox properties, such as molybdenum-, chromium-and vanadia-based catalysts, possess high catalytic activity for the various ODH reactions of hydrocarbons (Solymosi et al, 2001;Michorczyk et al, 2012). The main factors influencing the reaction include acid-base bifunctionality, which is important in CO 2 -mediated dehydrogenation reactions since both basic sites and Lewis-acid vacant sites play important functions in hydrocarbons activation (Deng et al, 2007;Pramod et al, 2014).…”

Section: Catalytic Systems For Co 2 -Odh Of Alkanesmentioning

confidence: 99%

“…The various forms of Mo depend on the loading, support type, and catalyst preparation methods (Sattler et al, 2014). For example, in a Mo 2 C/SiO 2 system, by co-feeding CO 2 for the ODH reaction, the benefits of CO 2 in oxidizing the Mo 2 C forming Mo-oxycarbide at higher temperatures could be observed (Solymosi and Nemeth, 1999;Solymosi et al, 2001). In fact, Dury et al, 2003a) reported that dissociation of CO 2 on the catalyst surface could take place due to introduction of 3% CO 2 for the ODH reaction of propane over NiMoO 4 hence inducing the oxidation of molybdenum suboxide at temperatures around 673-723 K. The presence of both molybdates and molybdenum oxides can enhance the catalytic properties of NiMoO 4 in hydrocarbon oxidation (Lezla et al, 1997;Dury et al, 2003a).…”

Section: Catalytic Systems For Co 2 -Odh Of Alkanesmentioning

confidence: 99%

CO2 as an Oxidant for High-Temperature Reactions

Kawi

Kathiraser

2015

Front. Energy Res.

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This paper presents a review on the developments in catalyst technology for the reactions utilizing CO 2 for high-temperature applications. These include dehydrogenation of alkanes to olefins, the dehydrogenation of ethylbenzene to styrene, and finally CO 2 reforming of hydrocarbon feedstock (i.e., methane) and alcohols. Aspects on the various reaction pathways are also highlighted. The literature on the role of promoters and catalyst development is critically evaluated. Most of the reactions discussed in this review are exploited in industries and related to on-going processes, thus providing extensive data from literature. However, some reactions, such as CO 2 reforming of ethanol and glycerol, which have not reached industrial scale, are also reviewed owing to their great potential in terms of sustainability, which is essential as energy for the future. This review further illustrates the building-up of knowledge that shows the role of support and catalysts for each reaction and the underlying linkage between certain catalysts, which can be adapted for the multiple CO 2 -related reactions.

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The oxidative dehydrogenation of propane with CO2 over supported Mo2C catalyst

Cited by 26 publications

References 16 publications

Reactions of propane with CO2 over Au catalysts

Reactions of propane with CO2 over Au catalysts

Active sites for tandem reactions of CO ₂ reduction and ethane dehydrogenation

CO2 as an Oxidant for High-Temperature Reactions

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The oxidative dehydrogenation of propane with CO2 over supported Mo2C catalyst

Cited by 26 publications

References 16 publications

Reactions of propane with CO2 over Au catalysts

Reactions of propane with CO2 over Au catalysts

Active sites for tandem reactions of CO 2 reduction and ethane dehydrogenation

CO2 as an Oxidant for High-Temperature Reactions

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Product

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Active sites for tandem reactions of CO ₂ reduction and ethane dehydrogenation