Effects of 2,5-dimethylfuran addition to diesel on soot nanostructures and reactivity

Gogoi, Bedanta; Raj, Abhijeet; Alrefaai, Mhd Maher; Samuel, Stephen; Anjana, Tharalekshmy; Pillai, Vinu; Bojanampati, Shrinivas

doi:10.1016/j.fuel.2015.07.038

Cited by 96 publications

(39 citation statements)

References 54 publications

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“…A different aspect in 2,5-DMF flame behavior was investigated in a number of studies focused on emission behavior [219,220]. In a study by Gogoi et al [219], the sooting behavior was investigated for a diffusion flame of 2,5-DMF/diesel blends with up to 15% 2,5-DMF by volume.…”

Section: Laminar Burning Velocities Of Furansmentioning

confidence: 99%

“…In a study by Gogoi et al [219], the sooting behavior was investigated for a diffusion flame of 2,5-DMF/diesel blends with up to 15% 2,5-DMF by volume. The results indicated that the addition of more 2,5-DMF in the blends led to reduction in soot emissions and an increase in soot particle reactivity, since the activation energy required for oxidation is much lower than that for the soot emitted from pure diesel.…”

Section: Laminar Burning Velocities Of Furansmentioning

confidence: 99%

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Recent Trends in the Production, Combustion and Modeling of Furan-Based Fuels

Eldeeb

Akih-Kumgeh

2018

Energies

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Abstract:There is growing interest in the use of furans, a class of alternative fuels derived from biomass, as transportation fuels. This paper reviews recent progress in the characterization of its combustion properties. It reviews their production processes, theoretical kinetic explorations and fundamental combustion properties. The theoretical efforts are focused on the mechanistic pathways for furan decomposition and oxidation, as well as the development of detailed chemical kinetic models. The experiments reviewed are mostly concerned with the temporal evolutions of homogeneous reactors and the propagation of laminar flames. The main thrust in homogeneous reactors is to determine global chemical time scales such as ignition delay times. Some studies have adopted a comparative approach to bring out reactivity differences. Chemical kinetic models with varying degrees of predictive success have been established. Experiments have revealed the relative behavior of their combustion. The growing body of literature in this area of combustion chemistry of alternative fuels shows a great potential for these fuels in terms of sustainable production and engine performance. However, these studies raise further questions regarding the chemical interactions of furans with other hydrocarbons. There are also open questions about the toxicity of the byproducts of combustion.

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Section: Laminar Burning Velocities Of Furansmentioning

confidence: 99%

Section: Laminar Burning Velocities Of Furansmentioning

confidence: 99%

Recent Trends in the Production, Combustion and Modeling of Furan-Based Fuels

Eldeeb

Akih-Kumgeh

2018

Energies

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“…To reduce the dependence on traditional fossil fuels, the alternative biofuels were widely studied [25][26][27][28]. Various previous studies considering biofuel soot were conducted [29][30][31][32][33]. Chemical and morphological characterization of soot and soot precursors were studied with diesel surrogates, aromatic and aliphatic fuels [34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

“…Soot nanostructures and chemical functionalities generated in premixed flames of ethylene and ethylene doped with 20%DMF also have been investigated [45]. DMF is reported to decrease the soot particle emission [33,46,47]. Gogoi et al [33] studied the sooting propensity, the oxidative reactivity and nanostructures of soot particles in a diesel diffusion flame with the addition of DMF (up to 15%) and found that soot emission reduced, and the oxidation reactivity of soot particles increased with increasing amount of DMF in the DMF/diesel blends.…”

Section: Introductionmentioning

confidence: 99%

“…DMF is reported to decrease the soot particle emission [33,46,47]. Gogoi et al [33] studied the sooting propensity, the oxidative reactivity and nanostructures of soot particles in a diesel diffusion flame with the addition of DMF (up to 15%) and found that soot emission reduced, and the oxidation reactivity of soot particles increased with increasing amount of DMF in the DMF/diesel blends. Liu et al [48] developed a reduced toluene reference fuel (TRF) -DMF-PAH mechanism to predict the soot and NO x emissions for engines.…”

Section: Introductionmentioning

confidence: 99%

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Nanoscale Characteristics and Reactivity of Nascent Soot from n-Heptane/2,5-Dimethylfuran Inverse Diffusion Flames with/without Magnetic Fields

et al. 2018

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Abstract:In this study, the differences of nanostructure and oxidation reactivity of the nascent soot formed in n-heptane/2,5-dimethylfuran (DMF) inverse diffusion flames (IDF) with/without influence of magnetic fields were studied, and the effects of DMF-doped and magnetic fields were discussed. Morphology and nanostructures of the soot samples were investigated using high-resolution transmission electron spectroscopy and X-ray diffraction, and the oxidation reactivity characteristics were analyzed by thermogravimetric analyzer. Results demonstrated that both additions of DMF-doped and magnetic fields could promote soot production and modify the soot nanostructure and oxidation reactivity in IDF. Soot production increased along with the increase of DMF-doped. With DMF blends, more clustered soot particles and typical core-shell structures with well-organized fringes were exhibited compared with that formed from the pure n-heptane IDF. With effects of magnetic fields, the precursor formation and the oxidization of soot were promoted, soot production was enhanced. Soot particles became relatively more mature with typical core-shell structure, thicker shell, longer fringe lengths, smaller fringe tortuosity, higher graphitization degree and lower oxidation reactivity. With magnetic force pointed to the central line and the inner direction of IDF under the conditions of N pole and S pole of the magnet facing the flame, oxygen was trapped, having an increased residence time to get more chance to react with the fuel molecules to cause more soot to be yielded and oxidized. That resulted in the soot precursor promotion, soot production enhancement, and soot part-oxidization and graphitization.

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Catalytic Hydrogenation/Hydrogenolysis of 5‐Hydroxymethylfurfural to 2,5‐Dimethylfuran

2020

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Recent developments in transformations of biobased 5hydroxymethylfurfural to 2,5-dimethylfuran, a potential liquid fuel, are critically summarized. The highest yield of 2,5-dimethylfuran (more than 98 %) from 5-hydroxymethylfurfural are obtained over bimetallic CuÀ Co supported on carbon at 180°C under 5 bar hydrogen in 2-propanol and over Ni supported on mesoporous carbon at 200°C under 30 bar hydrogen in water in a batch reactor. The desired catalyst should have relatively high metal dispersion and some acidity to facilitate both hydrogenation and hydrogenolysis. However, overhydrogenation and overhydrogenolysis forming 2,5-dimeth-yltetrahydrofuran and methylfuran, respectively, should be suppressed. Furthermore, a hydrophobic support is more selective than oxide-based support. After a careful adjustment of the residence time in a continuous reactor it is also possible to produce high yields of 2,5-dimethylfuran even over Pt/C. The main challenges limiting the industrial feasibility of these reactions are relatively low initial reactant concentration, catalyst deactivation by sintering, leaching and coking. In addition to selection of optimum reaction conditions and catalyst properties, kinetic modelling was also summarized.

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Effects of 2,5-dimethylfuran addition to diesel on soot nanostructures and reactivity

Cited by 96 publications

References 54 publications

Recent Trends in the Production, Combustion and Modeling of Furan-Based Fuels

Recent Trends in the Production, Combustion and Modeling of Furan-Based Fuels

Nanoscale Characteristics and Reactivity of Nascent Soot from n-Heptane/2,5-Dimethylfuran Inverse Diffusion Flames with/without Magnetic Fields

Catalytic Hydrogenation/Hydrogenolysis of 5‐Hydroxymethylfurfural to 2,5‐Dimethylfuran

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