Resumo

CARDONA GALLO, SANTIAGO ALONSO. OBTAINING OF THE COEFFICIENT OF ORGANIC CARBON FOR DIESEL THROUGH ISOTERMAS OF ADSORTION. Dyna rev.fac.nac.minas [online]. 2007, vol.74, n.153, pp.159-165. ISSN 0012-7353.

In this work the experimental values of the coefficient are presented of sorption organic carbon, K_oc, for fuel diesel of Mexican production which is a mixture of composed and whose value is not reported in the literature specialized, only for rank interval of sediments and soils. The coefficient of distribution, K_d, of the majority of the organic compounds is increased with the fraction of organic carbon, f_oc, implying that another option to obtain K_d is through the coefficient of sorption K_oc and f_oc by means of the relation K_d = f_oc K_oc. The values of K_d were determined through isotherms adsorption, for which five types of different floors were tested, five concentrations of diesel in intermittent reactors and itself model the process with the equation of Freundlich considering n = 1 for the lineal adjustments. Values were obtained of K_oc in a rank from 44.82 to 55.62 mL/g. The analysis was carried out of variance and applied the test of multiple intervals of Duncan to determine the difference among the averages of the K_oc obtained. Graphic the influence of the f_oc in the adsorption of the diesel was presented.

Palavras-chave : fuel diesel; distribution coefficient; organic carbon coefficient; retardation factor fraction of organic carbon.

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