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多孔聚合物载体的制备及吸附脱除二苯并噻吩的初步探索
Preparation of Poly-porous Poly(NVP-co-NMBA) Sorbent and Octanol Solution of Adsorption of Dibenzothiophene in Dilute
【摘要】 制备了一种多孔的聚合物吸附载体,并考察了在汽油模拟体系进行深度脱硫的效果. 载体的多孔性质有利于提高脱硫的吸附容量和选择性. 在正辛烷与二苯并噻吩组成的模拟体系中,DBT的初始浓度为1.26 g/L,吸附载体用量为50 g/L,测得吸附载体的吸附量为16 mg/g,脱硫率达到88%.
【Abstract】 A porous polymeric sorbent was prepared with sucrose as pore-forming additive, and the sorbent beads are superior to non-porous polymeric sorbent in adsorption of DBT from a model gasoline. Adsorption of 16 mg/g DBT was achieved under the condition of 50 g/L of the polymeric beads at initial DBT concentration of 1.26 g/L. The sorbent beads are easily desorbed with toluene and can be reused with stabilized adsorption capacity.
【关键词】 N-乙烯吡咯烷酮;
吸附脱硫;
二苯并噻吩;
多孔载体;
【Key words】 N-vinyl-pyrrolidone; adsorptive desulfurization; dibenzothiophene; porous sorbent;
【Key words】 N-vinyl-pyrrolidone; adsorptive desulfurization; dibenzothiophene; porous sorbent;
【基金】 国家“973”基金资助项目(编号: G2000048004)
- 【文献出处】 过程工程学报 ,The Chinese Journal of Process Engineering , 编辑部邮箱 ,2002年06期
- 【分类号】TE624
- 【被引频次】24
- 【下载频次】294