Kinetic mechanism of propane ignition and combustion in air

Титова, Н. С.; Kuleshov, P. S.; Starik, A. M.

doi:10.1134/s0010508211030014

Cited by 28 publications

(11 citation statements)

References 37 publications

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“…The most frequently used reaction mechanisms are GRI-3.0 mechanism (Smith et al, 1999), Konnov's (2000) mechanism and mechanism DS proposed by Dautov and Starik (1997) which was latter extended and modified in Titova et al (2011a) and Kozlov et al (2013) (MDS mechanism). For modelling NO x emission, mechanism developed by Miller and Bowman (1989) is also widely used by researchers engaged in the field.…”

Section: Methodology and Kinetic Modelsmentioning

confidence: 97%

“…As for the diffusion combustor, the computations showed that the prediction ability of reactor net model for homogeneous combustor depends strongly on the applied reaction mechanism. The results of the calculations of NO x , CO and C n H m concentrations for such a combustor with the use of different detailed reaction mechanisms: GRI-3.0 (Smith et al, 1999), GRI 2.11 (Smith et al, 1995), Miller and Bowmann (Miller and Bowmann, 1989) and MDS mechanism (Titova et al, 2011a;Kozlov et al, 2013) for methane-fuelled combustor are presented in Table 4. Given here are also the NO x , CO and C n H m concentrations for the kerosene-fuelled combustor predicted by the TTS reaction mechanism (Titova et al, 2011b) supplemented by the submechanism of N-containing species formation (Kozlov et al, 2013).…”

Section: Predictions Of Reactor Net Model For Homogeneous Combustormentioning

confidence: 99%

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Application of reactor net models for the simulation of gas-turbine combustor emissions

Starik

Kozlov

Лебедев

et al. 2014

IJSA

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The work deals with the evaluation of applicability of reactor net models and different reaction mechanisms for the predictions of emission characteristics of aero-engine combustors operating both in diffusion and in homogeneous burning modes. It is shown that the accuracy of the calculations of emission indices for NO x , CO and unburned hydrocarbons (UHC) is dependent strongly on the applied reaction mechanisms. The computations exhibited that for the combustor operating in a diffusion mode the use of methane as a fuel, instead of kerosene, leads to decreasing NO x (by 35%) emission index, as well as to decreasing the CO and UHC emissions, while for the combustor with homogeneous combustion of fuel-lean mixture the use of methane as a fuel results in an increase of EINO x value (by a factor of 1.4) compared with kerosene-fuelled combustor.Reference to this paper should be made as follows: Starik, A.M., Kozlov, V.E., Lebedev, A.B. and Titova, N.S. (2014) 'Application of reactor net models for the simulation of gas-turbine combustor emissions', Int.

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Section: Methodology and Kinetic Modelsmentioning

confidence: 97%

Section: Predictions Of Reactor Net Model For Homogeneous Combustormentioning

confidence: 99%

Application of reactor net models for the simulation of gas-turbine combustor emissions

Starik

Kozlov

Лебедев

et al. 2014

IJSA

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“…1), similar to published boron-containing materials, although propylene oxide formation was also observed for the first time in the present work, suggests that gasphase reactions are taking place instead of surface catalysed reactions. [19][20][21]31,34 The kinetics of elementary reactions in low-temperature autoignition chemistry of alkanes have been reviewed by Zador et al 21 Kinetic models for the ignition and combustion of propane in air and for the oxidation of propylene in the gas phase can be found in the literature, e.g., by Titova et al and Wilk et al 34,35 Basically, all the intermediates observed in the present work can be explained by reactions that are part of the extensive and complex reaction networks proposed in the combustion chemistry of propane in the gas phase. 21,[34][35][36] To verify whether gas phase processes dominate in our case, temperature-programmed experiments were carried out in which the gas formed was analysed by mass spectrometry (Fig.…”

Section: Temperature-programmed Experimentsmentioning

confidence: 99%

Green synthesis of propylene oxide directly from propane

Kube

Dong

Omojola

et al. 2022

Preprint

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The chemical industry faces the challenge of bringing emissions of climate-damaging CO2 to zero. However, the synthesis of important intermediates, such as olefins or epoxides, is still associated with the release of large amounts of greenhouse gases. This is due to both a high energy input for many process steps and insufficient selectivity of the underlying catalysed reactions. Surprisingly, we found that the oxidation of propane at elevated temperature over inert materials such as boron nitride and silicon dioxide leads to the formation of significant amounts of propylene oxide in a mixture with propylene, with unexpectedly small amounts of CO2 being formed. Fragile products are usually synthesised on highly specific surfaces, which is associated with strong interactions. We demonstrate that rapid reaction over unspecific interfaces entails im-portant consequences for the synthesis of products prone to overoxidation. Process simulations reveal that the combined synthesis of these two important chemical building blocks is technologically feasible. Our discovery leads the ways towards an environmentally friendly production of propylene oxide and propylene in one step. A complex catalyst development is not necessary.

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“…Ezek mindegyikéhez egyedi reakciósebességi állandó tartozik, melyek számítására vonatkozó összefüggések paraméterei a rendszer hőmérsékletétől és nyomásától is nagyban függenek, így a robbanás során dinamikusan változnak. [5] A reakcióegyenletek száma különböző megfontolásokkal redukálható, így egyszerűbbé téve a megoldást.…”

Section: Reakciókinetikai Modellekunclassified

Por- és gázrobbanásokkal kapcsolatos vizsgálatok alapjai és tapasztalatai

Mikáczó

Szepesi

2021

MDT

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Az ipari környezetben kialakuló por- és gázrobbanások számos veszélyt hordoznak magukban, amelyek következményeinek súlyossága lefúvásos védelemmel mérsékelhető. A szerkezetekben ekkor kialakuló redukált nyomás értéke nehezen jelezhető előre, hiszen a lejátszódó fizikai-kémiai folyamatok rendkívül összetettek. A lefúvóvezetékkel kiegészített hasadófelületek robbanást mérséklő hatása még ennél is bizonytalanabb, a mérnöki gyakorlatban pedig a szabványi számításoktól eltérő megoldásokra is igény mutatkozik. Jelen cikk a tématerület alapjait és a szerzők korábbi kutatásainak tapasztalatait foglalják össze. Megjelenésének célja, hogy segítséget nyújtson azok számára, akik jelenleg csak ismerkednek a szakterülettel, ám további kutatásokat szeretnének végezni a témában.

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Kinetic mechanism of propane ignition and combustion in air

Cited by 28 publications

References 37 publications

Application of reactor net models for the simulation of gas-turbine combustor emissions

Application of reactor net models for the simulation of gas-turbine combustor emissions

Green synthesis of propylene oxide directly from propane

Por- és gázrobbanásokkal kapcsolatos vizsgálatok alapjai és tapasztalatai

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