Abstract

Recent oil tanker accidents in the sea are very serious, not only since they pollute the environment but also because they release heavy oil. An exfoliated graphite was found to sorb heavy oil floating on the water and separate it easily from the water. The maximum capacity of sorption of A-grade heavy oil reached more than 80 times the weight of the exfoliated graphite used. By simple compression the heavy oil sorbed into exfoliated graphite could be recovered, with a maximum yield of recovery being about 80% of the sorbed oil.

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