Effect of the n-butanol addition on cyclopentadienyl radical formation during benzene combustion

Boussid, N.; Rezgui, Yacine

doi:10.1134/s0023158415010048

Cited by 4 publications

(5 citation statements)

References 93 publications

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“…It can be seen that Cu 1 Mn 1.5 Ce 0.5 catalyst basically achieved the catalytic performance of noble metal catalysts such as Au, Pt, Pb etc. It is found that the addition of CeO 2 would decrease the reduction temperature of Cu and promote the catalytic performance. Furthermore, the Cu element can be doped into CeO 2 in order to form cerium‐based solid solution and promotes catalytic performance.…”

Section: Resultsmentioning

confidence: 99%

Experimental Study of Benzene Catalytic Combustion over Cu–Mn‐Ce/Al2O3 Particles

Wang

Yang

et al. 2020

ChemistrySelect

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Low concentration benzene is one of major components of volatile organic compounds (VOCs) which pollutes atmosphere. In this study, the influence of addition of cerium(Ce) and manganese(Mn) on alumina supported copper catalyst(Cu/γ‐Al2O3) for benzene combustion is studied, using X‐ray diffraction pattern (XRD), scanning electron microscopy (SEM) coupled with Energy‐dispersive X‐ray (EDX), hydrogen‐temperature programmed reduction(H2‐TPR) and Fourier transform infrared spectroscopy(FTIR). The Cu−Mn‐Ce catalyst with a molar ratio of 1:1.5:0.5 and 10% capacity exhibited catalytic performance with calcination temperature of 600 °C and gas hourly space velocity (GHSV) which is less than 2 h−1. Ce improves the formation of lattice oxygen(Olatt) while Mn is beneficial for the augment of surface oxygen(Osur) and adsorbed oxygen(Oads). Synergistic effect of Mn and Ce can further increase the content of surface oxygen and adsorbed oxygen, which improves catalytic activity. The inferred benzene combustion process is as follows: break of the C−H bound→ the breakage of benzene ring through the breaking of the C−C bond and the C=C bond→ generation of water and carbon dioxide.

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Section: Resultsmentioning

confidence: 99%

Experimental Study of Benzene Catalytic Combustion over Cu–Mn‐Ce/Al2O3 Particles

Wang

Yang

et al. 2020

ChemistrySelect

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“…MODELING APPROACH Kinetic simulations were performed by PREMIX program comprised in the CHEMKIN II package [20] (for more details see [9,21]). Simulations deal with the results of Vandooren et al [16,22] where gas chro matography was used to investigate the flame structure of a sooting one dimensional premixed benzene oxy gen argon flame burning at 45 mbar with a fuel equiv alence ratio (Φ) of 2.0.…”

Section: Propargyl Radicalmentioning

confidence: 99%

“…Finally, it is noteworthy that the detailed descrip tions and validation of the global mechanism (benzene + butanol) has been introduced earlier [9].…”

Section: Propargyl Radicalmentioning

confidence: 99%

“…Despite of its benefits, several draw backs can be identified for ethanol in the form of lower energy content, lower viscosity, low lubricity, higher vapour pressure, higher solubility in water, increased corrosive action on distribution pipelines and reduced 1 The article is published in the original. compatibility with existing power units, which nega tively impact vehicle fuel economy and prevent etha nol transportation via pipelines like pure gasoline [9]. Therefore, interest in new biofuels, especially higher alcohols, has recently increased [2].…”

Section: Introductionmentioning

confidence: 99%

“…Like ethanol, butanol is a bio mass based renewable fuel that can be produced by alcoholic fermentation of biomass feedstocks and that displays several advantages which include: a higher energy content, a lesser vapor lock tendency due to lower volatility, a lesser ignition problems due to lower latent heat, a higher mixing stability with fossil fuels, and virtually no corrosion to existing pipelines, mak ing it more preferable than ethanol for blending with fossil fuels [9]. Thus the combustion of butyric alco hols has been recently intensively investigated in both well defined laboratory combustion facilities [2], as well as on SI and CI engines [2].…”

Section: Introductionmentioning

confidence: 99%

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Effect of the n-butanol addition on propargyl radical issued from the combustion of benzene

Boussid

Rezgui

2016

Kinet Catal

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A global kinetic model was constructed from the combination of two existing and broadly validated kinetic schemes for benzene and butanol. Then the combined model, which was able to predict the combustion behavior of benzene butanol fuel mixtures, was implemented in the PREMIX code in conjunction with CHEMKIN II in order to investigate the effect of n butanol addition on the formation depletion of propargil radical C 3 H 3 , which is known to be soot precursor, in fuel rich n butanol benzene flames. It was treated the dependence of the soot precursor amounts on n butanol percentage in the fuel mixture. Then was considered the causes of the variation of this species mole fractions with benzene replacement percentage by oxygenate additive. The principal objective of the current study was to obtain fundamental understanding of the mecha nisms through which the oxygenate compound affects the soot precursor amounts. It was found that n butanol benzene fuel mixture displayed lower propargyl radical concentrations as compared to the pure benzene flame.

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Role of hydrogen enrichment on acetylene emission during benzene oxidation

Rezgui

2017

Kinet Catal

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Effect of the n-butanol addition on cyclopentadienyl radical formation during benzene combustion

Cited by 4 publications

References 93 publications

Experimental Study of Benzene Catalytic Combustion over Cu–Mn‐Ce/Al2O3 Particles

Experimental Study of Benzene Catalytic Combustion over Cu–Mn‐Ce/Al2O3 Particles

Effect of the n-butanol addition on propargyl radical issued from the combustion of benzene

Role of hydrogen enrichment on acetylene emission during benzene oxidation

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