吸附分离液蜡油中芳香烃的研究

采用吸附法分离了液蜡油中的芳烃，探讨了改性多孔炭、分子筛、硅胶以及聚苯乙烯树脂等不同吸附剂对芳烃的吸附性能。并对改性后的多孔炭吸附剂进行结构表征。结果表明：氢氧化钠改性条件下的多孔炭材料具有更高的比表面积，对芳烃的吸附量可达37.025 mg/g，吸附性能远大于分子筛、硅胶、聚苯乙烯树脂等未改性吸附剂，聚苯乙烯树脂对芳烃的吸附性能最差，吸附量16.025 mg/g。

ADSORPTION OFAROMATIC HYDROCARBON IN LIQUID WAX OIL

The presence of aromatic hydrocarbon in liquid wax has a serious effect on the quality of downstream products. The separation of the aromatic compounds in liquid wax by adsorption method was studied. The adsorption effect of modified porous carbon, molecular sieve, silica gel and polystyrene resin on aromatic hydrocarbons was investigated, and the structure of the modified adsorbent was characterized. The results showed that the porous carbon material modified with NaOH has a higher specific surface area, the adsorption capacity of aromatic hydrocarbons can reach up to 37.025 mg?g-1, much greater than that of molecular sieve, silica gel and resin. The adsorption performance of the resin is the worst, the adsorption capacity is only 16.025 mg?g-1.