Oil recovery from oily-sludge by pyrolysis method

被引：0
|
作者：
Quan C. [1 ]
Li A. [1 ]
Gao N. [1 ]
Guo D. [1 ]
机构：
[1] School of Environmental Science and Technology, Dalian University of Technology
来源：
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2010年 / 26卷 / 05期
关键词：
Oil recovery; Oily-sludge; Pyrolysis;
D O I：
10.3969/j.issn.1001-8719.2010.05.014
中图分类号：
学科分类号：
摘要：
Pyrolysis characteristics of oily-sludge were studied by thermogravimetric(TG) analyzer and tubular furnace reactor. The effects of heating rates on oily-sludge pyrolysis and the effects of final pyrolysis temperature on the product distribution of oily-sludge pyrolysis were investigated. The kinetic parameters of oily-sludge were calculated with the method of Coats-Redfern. The products of oily-sludge pyrolysis were analyzed by elemental analysis, FT-IR and 1H NMR. The results indicated that TG curve of oily-sludge shifted to higher temperature, and its activation energy(E) and pre-exponential factor(A) values were increased with the increase of the heating rates. The optimum final pyrolysis temperature was 823 K, at which the oil yield of oily-sludge pyrolysis reached its maximum value of 40.36%. The recovered oil had the similar chemical composition to diesel oil, which could be reused. The pyrolysis residues of oily-sludge were black powder solid and residual oil content in it was about 0.0662%, meeting the national standard regulation for farm-oriented soil oil content(<0.3%).
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页码：742 / 746
页数：4
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