Alkane Activation at Ambient Temperatures: Unusual Selectivities, CC, CH Bond Scission versus CC Bond Coupling

Trionfetti, C.; Agiral, A.; Gardeniers, Han; Lefferts, Leon; Seshan, Kulathuiyer

doi:10.1002/cphc.200700757

Cited by 19 publications

(28 citation statements)

References 42 publications

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“…In order to check if the homologation, observed during propane conversion in the microreactor, is also possible in the case of ethane and methane, their activation in the presence of plasma was also attempted and the results were reported previously [15]. In both cases, appreciable amounts of products formed by C-C coupling were observed, indicating homologation.…”

Section: Propane Conversion In the Presence Of Plasma In The Microreamentioning

confidence: 92%

“…By definition, DBD is an electric discharge often referred to as a silent discharge or a microdischarge. In the case of DBD, the temperature of the gas is close to ambient [13][14][15]. DBD is reported to be able to activate hydrocarbons as a result of electron impact collisions [14][15][16].…”

Section: Introductionmentioning

confidence: 96%

“…In the case of DBD, the temperature of the gas is close to ambient [13][14][15]. DBD is reported to be able to activate hydrocarbons as a result of electron impact collisions [14][15][16]. Plasmas generated by DBD in parallel-plate geometries at atmospheric pressure are the sub-ject of numerous experimental and theoretical investigations.…”

Section: Introductionmentioning

confidence: 98%

“…Moreover, generation of a DBD at atmospheric pressure in a small and confined reactor space may imply a (i) stronger electric field, (ii) more uniform and dense plasma, (iii) higher concentration of electrons and radicals, and (iv) better control of the residence time. The addition of small amounts of oxygen helps to achieve higher levels of hydrocarbon conversion, because the oxygen radicals generated help hydrogen abstraction from hydrocarbons [14,15]. C-C and C-H bond activation at lower temperatures and its influence on product selectivity will be discussed.…”

Section: Introductionmentioning

confidence: 99%

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Propane Conversion at Ambient Temperatures C–C and C–H Bond Activation Using Cold Plasma in a Microreactor

et al. 2008

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In this work, the oxidative conversion of propane was studied using a dielectric barrier discharge microreactor. This generates a cold microplasma at atmospheric pressure and ambient temperatures. Surprisingly, large amounts of products with molecular weight higher than propane, such as C 4 and C 4 +, were mainly observed due to C-C bond formation, in contrast to what is usually observed for this reaction when it is carried out under thermal activation, which leads to cracking products. A chemical kinetic model was developed to better understand the radical reaction network. Interestingly, the results suggest that (i) at lower level of propane conversion the model can nicely predict the experimental results and (ii) depending on the radical density the product selectivity can be tailored. In particular, at higher radical density, enhanced C-C bond formation was observed.

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Section: Propane Conversion In the Presence Of Plasma In The Microreamentioning

confidence: 92%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Propane Conversion at Ambient Temperatures C–C and C–H Bond Activation Using Cold Plasma in a Microreactor

et al. 2008

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“…Ions and radicals are thus formed at much lower temperatures than in catalytic processes [41][42]. Recently we [43][44] reported on the oxidative dehydrogenation of propane, ethane and methane at ambient conditions in plasma micro reactor both in presence and absence of Li/MgO catalyst. The low reaction temperatures used in this system, favored the coupling of C-C bonds, hence products with higher carbon number than the reactant were observed as major products.…”

Section: Oxidative Conversion Of Alkanes At Ambient Conditions Using mentioning

confidence: 99%

Oxidative cracking of n-hexane-A catalytic pathway to olefins

Boyadijan¹

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Catalytic Oxidative Cracking of Light Alkanes to Alkenes

Boyadjian

Lefferts

2018

Eur J Inorg Chem

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A review on the catalytic oxidative cracking of light alkanes to alkenes is presented as an alternative route to steam cracking for production of alkenes. Catalytic oxidative cracking is a combination of heterogeneous and homogeneous reactions; the reaction is initiated on the catalyst surface followed by thermal gas phase cracking. The review focuses on the catalytic generation of alkyl radicals at moderate temperatures (550-650°C) using the Li/MgO system. Comparison with other catalyst systems such as

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Alkane Activation at Ambient Temperatures: Unusual Selectivities, CC, CH Bond Scission versus CC Bond Coupling

Cited by 19 publications

References 42 publications

Propane Conversion at Ambient Temperatures C–C and C–H Bond Activation Using Cold Plasma in a Microreactor

Propane Conversion at Ambient Temperatures C–C and C–H Bond Activation Using Cold Plasma in a Microreactor

Oxidative cracking of n-hexane-A catalytic pathway to olefins

Catalytic Oxidative Cracking of Light Alkanes to Alkenes

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