Heavy oil sorption capacity

FIGURE 4.7 Dependence of heavy oil sorption capacity of exfoliated graphite on its bulk density, (a) A-grade heavy oil, (b) B- and C-grade heavy oils and crude oil. 

Large void spaces among wormlike particles were quantitatively evaluated by image analysis using thin slices prepared from an exfoliated graphite after impregnation with paraffin oil. To compare the volume of these large spaces with sorptivity, they were found to be responsible for about 70% of total heavy oil sorption capacity [58]. However, crevicelike pores on the surface of particles and the ellipsoidal pores inside the particles also have important roles in heavy oil... 

A study of exfoliated graphite indicates their high heavy oil sorption capacity compared to polypropylene mats, perlite, cotton, milkweed, and kenaf Perlites have also proven to have a sorption capacity less than, but comparable to, most synthetic sorbents for oil spill cleanup. 

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See also in sourсe #XX -- [ , , , , , , , ]

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