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Preparation of Alumina Nanoparticles Carrier and Research on Pore Properties
LIU Yan,SHANG Li-yan,LI Yan,ZHAI Yu-chun
Abstract616)      PDF (443KB)(586)      
Alumina nanoparticles carrier was prepared by supersolubilizing self-assembly micelles. BET and mercury injection method were used to characterize the carrier and the influence of adhesive amount and template amount on pore character of nanometer alumina was researched. The results indicate that, when the amount of adhesive increased, surface area and bulk density increased, pore volume and pore size decreased. When the amount of template increased, pore volume and pore size increased, bulk density decreased. When template amount is greater 10 than benchmark, the surface area is 411.4 m 2/g, surface area achieved maximum,less or more then this value, surface area would decrease.
2010, 23 (2): 13-15.
Oxidative Desulfurization in Diese1 via Microwave Irradiation Under H2O2-CH3COOH-DMF System
SHI Zhen-dong, SHANG Li-yan, ZHAO Shan-lin, LI Ping, ZHAI Yu-chun
Abstract362)      PDF (252KB)(238)      
The sulfur - bearing organics in diesel oil was oxidized using H2O2 - CH3COOH systems via microwave irradiation,then the oxidized organic sulfur compounds (sulfones) were extracted by N,N - dimethyl formamide. Experimental results show that the removal efficiency of sulfur compounds is up to 88.2% in the following conditions:the dosage of the oxidant is 12 times as much as that of theoretical, the volume ratio of solvent-to-oil is 0.25∶1, the pressure is 0.4 MPa, the radiant time on the constant pressure is 6 min, the microwave power is 375 W,the volume ratio of extractant-to- oil is 0.25∶1, the standing time is 10 min. Compared with other methods on oxidative desulfurization, the removal efficiency of sulfur can increase 26%~42% and the dosage of the oxidant reduce 20%~50%.
2008, 21 (4): 41-44.