| Sorption Behaviours of Exfoliated Graphite |
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| 作者姓名： | 戴光泽 伍川辉 |
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| 作者单位： | [1]SchoolofMaterialsScienceandEngineering,SouthwestJiaotongUniversity,Chengdu610031,China [2]SchoolofMechanicalEngineering,SouthwestJiaotongUniversity,Chengdu610031,China |
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| 摘 要： | Exfoliated graphite(EG) is selected as a new kind of sorbent to sorb heavy oil spilled.In order to make use of EG more effectively,some basic experiments are performed to investigate its sorption properties i.e.,specific sorption,height of saturation layer,sorption time constant.In the present experiments,A-grade heavy oil is employed as a standard sorbate.It is concluded that 1) under the condition that the area of solid(filter bottom)-liquid (heavy oil) interface is a constant,specific sorption usually decreases when the amonut of EG filled or the apparent bulk density increase,however,the specific sorption initially increases when the apparent bulk density is too low and the amount of EG filled is too much ;2) under the condition that the apparent bulk density of EG filled is a constant,the sorption time constant tends to increase when the amount of EG filled increases;however,for a constant amount of EG filled,the sorption time constant will decrease when the apparent bulk density increases.
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| 关 键 词： | 石墨 吸附作用 溢油处理 重油 |
Sorption Behaviours of Exfoliated Graphite |
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| Abstract: | Exfoliated graphite (EG) is selected as a new kind of sorbent to sorb heavy oil spilled. In order to make use of EG more effectively, some basic experiments are performed to investigate its sorption properties,i.e., specific sorption, height of saturation layer, sorption time constant. In the present experiments, A-grade heavy oil is employed as a standard sorbate. It is concluded that 1) under the condition that the area of solid (filter bottom)-liquid (heavy oil) interface is a constant, specific sorption usually decreases when the amount of EG filled or the apparent bulk density increase; however, the specific sorption initially increases when the apparent bulk density is too low and the amount of EG filled is too much; 2) under the condition that the apparent bulk density of EG filled is a constant, the sorption time constant tends to increase when the amount of EG filled increases; however, for a constant amount of EG filled, the sorption time constant will decrease when the apparent bulk density increases. |
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| Keywords: | exfoliated graphite sorption heavy oil sorption spilled oil treatment |
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