Comparative study of diesel sorption performance between Chorisia speciosa fibers and a commercial polyurethane foam

The objective of this work was to evaluate and compare the potential polyurethane kapok (Chorisia speciosa) residues as sorbent materials in treatment diesel spillage. To determine sorption capacity, gravimetric tests were performed static medium at room temperature different temperatures (10, 15 28 °C) varying time contact between material diesel. It observed that process occurs a high velocity, with saturation point achieved first 5 minutes contact, natural fiber presents higher capacity compared residue due low viscosity oil, contributes reduce de entrapment inside porous foam. has also been exhibits an increase increase. Scanning electron microscopy (SEM) analysis have shown main morphological property involved smooth oil porosity associated small diameter. presented 37 g/g equilibrium demonstrating its great application for