Kinetic modeling of total oxidation of propane over rhodium

Sui, Ran; Mantzaras, John; Liu, Zirui; Law, Chung K.

doi:10.1016/j.combustflame.2021.111847

Cited by 7 publications

(2 citation statements)

References 45 publications

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“…Abdalla et al [10] experimentally studied the influence of flow rates on the soot oxidation rate in an inverse RP-3 inverse flame. The results showed that a higher flow rate resulted in a larger amount of VOCs (volatile organic compounds) [11], leading to an increasement in the reactive sites for the oxidizer. Previous studies have comprehensively revealed the soot formation process in the combustion of aviation kerosene at the atmospheric condition.…”

Section: Introductionmentioning

confidence: 99%

Chemical, radiative, and dilutive effects of CO2 addition on soot formation in jet A-1 kerosene co-flow diffusion flame

et al. 2023

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With the development of aviation industry, it is urgently to investigate the soot formation properties of aviation kerosene to better control the soot emissions. The dilutive, chemical and radiative effects of CO2on the soot inception, condensation and HACA growth processes in laminar co-flow Jet-A1 kerosene diffusion flames were numerically investigated by employing detailed chemical mechanisms and soot sectional models. The results showed that the addition of CO2dramatically decreased the maximum temperature (by 92 K)and soot volume fraction (by 41.0%). The dilutive effect of CO2 contributed the most to the decrease of temperature and soot volume fraction. It also was the main factor in the decrease of soot inception, condensation and HACA growth processes. The chemical effect of CO2had little impact on the decomposition of fuels into light hydrocarbons, but obviously limited the growth of light hydrocarbons to A1. The radiative effect of CO2decreased the maximum temperature and soot volume fraction by 13 K and 5.2% (from 1.92 to 1.82 ppm). It had little impact on the soot inception, condensation and HACA growth rates.

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Section: Introductionmentioning

confidence: 99%

Chemical, radiative, and dilutive effects of CO2 addition on soot formation in jet A-1 kerosene co-flow diffusion flame

et al. 2023

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“…At present, fossil energy still occupies a dominant position in the world energy consumption. Soot and NO x and CO 2 emissions from fossil fuel combustion are the main reasons for the greenhouse effect, climate change, and harm to living beings. − Bio-fuels from biomass pyrolysis or other conversion techniques are clean and low-carbon fuels, which have great potential to partly replace fossil fuels to reduce CO 2 and pollutant emissions. − However, due to the presence of nitrogen species in biomass resources, a trace amount of nitrogen compounds (such as pyridine, etc.) exists in bio-fuels, which affects the soot and NO x formation during the cofiring of bio-fuels with fossil fuels.…”

Section: Introductionmentioning

confidence: 99%

Blending Effects of Nitrogenous Bio-Fuel on Soot and NO_x Formation during Gasoline Combustion

et al. 2023

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Bio-fuel plays an important role in addressing the issue of CO2 and pollutant emission during cocombustion with fossil fuels. In this work, the effects of nitrogenous bio-fuel on soot and NO x formation during gasoline combustion were numerically investigated. Three bio-fuels, modeled by mixtures of pyridine, ethyl acetate, and ethanol with different volume fractions of pyridine and named SIM1 (0%), SIM2 (0.5%), and SIM3 (1%), were adopted to investigate the formation of soot and NO x when coburning with gasoline. Two mechanisms, i.e., the Glarborg mechanism and the Okafor mechanism, were employed to study the difference in soot and NO x formation. Results showed that pyridine exhibited different effects on soot formation in different regions. Based on the Okafor mechanism, soot formation was suppressed at the height of z = 3–4 cm, while it was promoted at the height of z = 4.5–5.5 cm. However, a reverse trend was predicted by the Glarborg mechanism. Moreover, the peak soot volume fraction (SVF) calculated by the Okafor mechanism was obviously higher than that calculated by the Glarborg mechanism; the major reason for the inconsistency of SVF in the two mechanisms was that more C6H5CH3 reacted with OH radicals to form C6H5CH2 in the Glarborg mechanism, resulting in less C6H5CH3 forming benzene (A1). Along with the increase of the pyridine proportion in the bio-fuel, the concentrations of NO increased by 92.1 and 91.4% in both mechanisms, attributed to the pyrolysis of pyridine into HCN, which promoted the formation of NO precursors (N, NH, NCO, and HNO) and thus NO. The difference in NO formation between the two mechanisms was because the reaction rate of NO converted from NO precursors in the Glarborg mechanism was higher than that in the Okafor mechanism. The NO2 was converted from NO via the reaction of NO + HO2 = NO2 + OH, and it distributed in the region with a lower NO concentration.

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Experimental investigation of Ar-diluted ethylene catalytic ignition delay times over platinum particles under low temperatures

Peng,

Zheng

2024

Combustion and Flame

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Kinetic modeling of total oxidation of propane over rhodium

Cited by 7 publications

References 45 publications

Chemical, radiative, and dilutive effects of CO2 addition on soot formation in jet A-1 kerosene co-flow diffusion flame

Chemical, radiative, and dilutive effects of CO2 addition on soot formation in jet A-1 kerosene co-flow diffusion flame

Blending Effects of Nitrogenous Bio-Fuel on Soot and NO_x Formation during Gasoline Combustion

Experimental investigation of Ar-diluted ethylene catalytic ignition delay times over platinum particles under low temperatures

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Kinetic modeling of total oxidation of propane over rhodium

Cited by 7 publications

References 45 publications

Chemical, radiative, and dilutive effects of CO2 addition on soot formation in jet A-1 kerosene co-flow diffusion flame

Chemical, radiative, and dilutive effects of CO2 addition on soot formation in jet A-1 kerosene co-flow diffusion flame

Blending Effects of Nitrogenous Bio-Fuel on Soot and NOx Formation during Gasoline Combustion

Experimental investigation of Ar-diluted ethylene catalytic ignition delay times over platinum particles under low temperatures

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Blending Effects of Nitrogenous Bio-Fuel on Soot and NO_x Formation during Gasoline Combustion