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Radiation-induced effects on alternative fuels

II. X-ray irradiation of asphaltenes from coal

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Abstract

Asphaltenes obtained from high-ash coal by precipitation with n-hexane were X-ray irradiated at different doses. The gases evolved from the irradiated samples consist mainly of ethane and propane. The condensed matter obtained upon irradiation was fractionated by Preparative Liquid Chromatography (PLC) into 8 discrete fractions and its relative distribution was studied as a function of the irradiation doses. Based on the product distribution as well as the analysis of the initial sample using PLC, GPC and IV and NMR spectroscopies, a mechanism is proposed to explain the X-ray effects on the irradiation of asphaltenes.

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Authors and Affiliations

  1. Instituto de Fisica e Química de São Carlos, Universidade de São Paulo, 13560, São Carlos, SP, (Brazil)

    F. M. Lanças, E. Carrilho & D. M. P. Dibo

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  1. F. M. Lanças
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  2. E. Carrilho
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  3. D. M. P. Dibo
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Lanças, F.M., Carrilho, E. & Dibo, D.M.P. Radiation-induced effects on alternative fuels. Journal of Radioanalytical and Nuclear Chemistry, Articles 158, 283–292 (1992). https://doi.org/10.1007/BF02047115

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  • DOI: https://doi.org/10.1007/BF02047115

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