Heptaldehyde and undecylenic acid from ricinus communis: Kinetics and process design

Maria L. Correa, Jorge A. Velásquez

    Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

    Resumen

    Ricinus communis is a non-food plant, one of the main products of the plant arc the seeds from which castor oil is extracted. Castor oil pyrolysis produces heptaldehyde and undecylenic acid. A kinetic model of this reaction is not reported in the literature. The simulation and economic evaluation of this process are not possible without an appropriate kinetic and thermodynamic model. A pseudo-first-order kinetic model for the pyrolysis reaction was obtained in a semicontinuous reactor. Kinetic parameters were obtained at 2.67 kPa, the frequency factor of 19.2 s'1, and the activation energy of 54013.3 kJ/kmol. A conceptual design for the process was proposed. The process was simulated in Microsoft Excel® using add-ins developed for the authors. The main equipment was sized. Capital costs, operating costs and financial profitability were estimated. In accordance with an internal rate of return of 44%, the project proved attractive for the investors. Finally, the results indicated that the castor oil pyrolysis is feasible, thus the Ricinus communis crop could be valorized into high value-added products.

    Idioma originalInglés
    Páginas (desde-hasta)443-448
    Número de páginas6
    PublicaciónCellulose Chemistry and Technology
    Volumen50
    N.º3-4
    EstadoPublicada - 2016

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