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摘要: 通过对吸附率(有效吸附系数)Ks和饱和吸附量Msat的测量,描述了黏度为0.001Pa.s-0.850Pa.s的各种油类在膨胀石墨中的吸附力学,发现吸附率Ks对油类黏度有很强的相关性。吸入膨胀石墨中的饱和吸附量Msat几乎恒定在50kg/kg,该值略低于由膨胀石墨块直接浸渍在油中测得的吸附容量,这是由于所吸附的油沿膨胀石墨柱高度存在重力梯度。Abstract: Sorption kinetics of various oils with different viscosities from 0.001 to 0.850Pa•s into exfoliated graphite column was characterized by measuring sorptivity (effective sorption coefficient) KS and saturated amount of sorption msat. A strong dependence of sorptivity KS on viscosity of oils was observed. Saturated amount of sorption msat into the column was almost a constant of 50kg/kg, which was a little bit smaller than that measured by direct soaking of a lump of exfoliated graphite in oils, due to the presence of a gradient of sorbed oils along the height of exfoliated graphite column.
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Key words:
- Sorption /
- Heavy oils /
- Kerocene /
- Exfoliated graphite /
- Kinetics /
- Viscosity
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