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The solute-solid adsorption isotherms (SSA) of asphaltenes and resins were measured using the inorganic fraction (97% SiO 2 ) of the deposit that plugged the tubing of a production well as an inorganic adsorbent. In other experiments, Ceuta asphaltenes and the product (HA) of heating them at 350°C for 11 h were used as organic adsorbents in heptane, toluene and heptane-toluene at 26°C. Ceuta...
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