New pitches with enhanced graphitization ability obtained from Moroccan oil shales

Abourriche, A.; Oumam, Mina; Mouhssim, A.; Dahiri, M.; Hannache, Hassan; Chollon, Georges; Pailler, R.; Naslain, R.; Birot, Marc; Pillot, J.‐P.

doi:10.1016/j.jaap.2003.12.004

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…This assumption agrees with the transalkylation reactions between 350 and 550 °C reported by Leach [16]. Moreover, the reactivity of phenol, with respect to other organic functions, was already noticed in the degradation of oil shale kerogens [17,18]. …”

Section: Resultssupporting

confidence: 91%

Chemical recycling of carbon fibers-reinforced phenolic resin composites by phenol in subcritical conditions

Oumam¹,

Abourriche²,

Birot³

et al. 2014

IOSRJAC

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Abstract:In this work, a composite prepared with a phenolic matrix and reinforced with carbon fibers was subjected to degradation by phenol under subcritical conditions. Phenol was able to solubilize the resin matrix under relatively mild conditions (T ≤ 390 °C, P < 0.5 MPa) without altering the carbon fibers, as confirmed by scanning electron microscopy and by mechanical characterization of the fibers recovered after heat treatment.

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Section: Resultssupporting

confidence: 91%

Chemical recycling of carbon fibers-reinforced phenolic resin composites by phenol in subcritical conditions

Oumam¹,

Abourriche²,

Birot³

et al. 2014

IOSRJAC

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“…The increased yield and maltene content found in the oil produced by phenol suggests that this solvent not only acts as an effective extraction agent, but also interacts with kerogen molecules. In fact, previous studies conducted by Abourriche et al [40] have shown that phenol reacts with the double and triple bonds of the decomposition products, resulting in the production of alcohols and aldehydes.…”

Section: Effect Of the Solventmentioning

confidence: 99%

Investigation of Organic Matter Extraction from Moroccan Oil Shale

Abourriche,

Benhammou,

Abouliatim

et al. 2023

MSCE

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This study focuses on investigating the effect of various solvents on the supercritical extraction of organic matter from Moroccan oil shales, with the goal of determining the optimal operating conditions that result in a high yield of high-quality oil rich in aromatic compounds. The results of this study demonstrate that the extraction yield and quality of the extracted oil heavily depend on the chosen operating conditions for supercritical or subcritical extraction of organic matter from oil shale. Additionally, the study found that phenol can effectively degrade oil shale and enable extraction of nearly all the organic matter, even under mild conditions (T = 390˚C, P = 1.2 MPa, Time = 2.5 h. Furthermore, the oils obtained through this extraction process are of high quality, with a rich content of maltenes, and a higher concentration of aromatic compounds and lower levels of sulfur than those obtained using other solvents.

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“…However, the mineral matter contained in oil shale makes its use as a source of energy difficult. At the same time, the organic matter, which is present in oil shale and is rich in aromatic compounds, could find other applications [6,7]. Hence, many studies have been performed on the methods of extraction of organic matter from oil shale [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

The effect of various parameters on the supercritical extraction of Moroccan oil shales: Application in the elaboration of carbon foams and graphitizable carbons

Abourriche¹,

Oumam²,

Mansouri³

et al. 2023

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This study evaluates the possibilities to produce new materials, starting from Moroccan oil shales, for different applications. More specifically, the authors aimed to demonstrate that the organic fraction of the oil shales could be used as a precursor of carbon foams and graphitizable carbons, after appropriate chemical treatments resulting in the "maturation" of this organic phase. First, the researchers studied the optimization of experimental conditions and the identification of various parameters influencing the yield and composition of oils obtained by the supercritical extraction of Moroccan oil shale. The effect of various experimental parameters, such as mineral matter, thermal treatment temperature (T), treatment duration (t) and solvent type, was studied. The experimental results obtained show clearly that the organic matter contained in the Moroccan Tarfaya oil shale (sub-layer R 3 ) can be recovered by phenol under the following optimal conditions: T = 390 °C, t = 2.5 hours using phenol as a solvent with an amount of 15 g for each 10 g of sub-layer R 3 carbonate-free oil shale (RH) . The results reveal that the yield and composition of the oil obtained by extraction with phenol is markedly different from those obtained by extraction with toluene, quinoline or withoutThe effect of various parameters on the supercritical extraction of Moroccan oil shales … solvent. Furthermore, the phenol has a very significant role in increasing the recovery yield and the degree of maturation of the obtained oil. It was shown that phenol was a suitable extraction solvent to produce graphitizable carbon at a relatively low temperature, below 1800 °C.

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New pitches with enhanced graphitization ability obtained from Moroccan oil shales

Cited by 7 publications

References 10 publications

Chemical recycling of carbon fibers-reinforced phenolic resin composites by phenol in subcritical conditions

Chemical recycling of carbon fibers-reinforced phenolic resin composites by phenol in subcritical conditions

Investigation of Organic Matter Extraction from Moroccan Oil Shale

The effect of various parameters on the supercritical extraction of Moroccan oil shales: Application in the elaboration of carbon foams and graphitizable carbons

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