The Characterization of Indigenous Magnesite: A Prospective Adsorbent for the Re-Refining of Used Lubricating Oil

被引:4
作者
Kamal, M. A. [1 ]
Naqvi, S. M. D. [1 ]
Khan, F. [2 ]
机构
[1] Univ Karachi, Dept Appl Chem & Chem Technol, Karachi 75270, Pakistan
[2] Univ Karachi, Dept Chem Engn, Karachi 75270, Pakistan
关键词
adsorption; magnesite; used lubricating oil; re-refining; PAH; HYDROCARBON TYPES; GAS OILS; ADSORPTION;
D O I
10.1080/10916466.2011.557678
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Raw magnesite is slightly porous but its porosity could be increased on heating at and above 500 degrees C. Its adsorption characteristics were investigated for various activation temperatures, times and particle sizes. Maximum adsorption capacity was found for 100-230-mesh magnesite particles activated at 500 degrees C for 2 h. This has produced low color index re-refined oil. One of the economical features is the reproducibility of the results after regeneration of the spent magnesite samples. An excellent feature of the adsorbent is the efficient removal capability of aromatics especially PAH, which is supported by UV and FTIR studies of oils.
引用
收藏
页码:2348 / 2356
页数:9
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