Technology and Application of Oil Sludge Pyrolysis in Rotary Furnace

Abstract:

Technology of pyrolysis rotary furnace for oil sludge was conducted in this paper, which feature with natural gas as fuel, multi-combuster for heating controlling and novel dynamic-static sealing structure at both ends of the rotary furnace. A complete set of technical process was designed and operated with processing scale of 10 tons/day of oil sludge (The sludge moisture content is 80%). The result indicates that the system meets the standard of safe running. Recovery rate of the oil in sludge is more than 80%, while the oil content of pyrolytic residues is less than 0.3%. The main components of non-condensable gas include methane and hydrogen, occupying 35% and 40% respectively. There are high content of lightweight fractions in pyrolysis oil, such as gasoline, kerosene and diesel oil, in which the C10-C15 is near to 50%-60% and aromatics can be up to 60％. Finally, due to the high contents of carbon and aluminum salt in residue, it is much worth for the carbon and aluminum salt recovery.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 2371-2378
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.2371
• Online since: October 2011
• Authors: Wan Fu Wang, Wei Dong Du, Lin Tang, Peng Liu
• Keywords: Oil Sludge, Pyrolysis, Resource Recovery, Rotary Furnace

References

[1] Fangyun Wu, Jinfu Chen, Chaocheng Zhao, etc. Environmental engineering of petroleum. Petroleum Industry Press, (2002).

[2] Wanfu Wang, Yinhua He, Ying Liu, etc. Study on the pyrolysis and utilization method of oily sludge. Environmental Protection of Oil & Gas Fields, 2006, 16 (2): 15-18.

[3] Limin He. Study on the pyrolysis of sludge from oil refinery. Natural Science Journal of Xiangtan University, 2001, 23(2), 74-76.

[4] Shaoping Kuang, Xinrong Wu. Harmless disposal and resources utilization of oil sludge. Chemical Industry Press, beijing, (2009).

[5] Shuang Chen, Huie Liu, Qingjie Guo. Study on the pyrolysis behavior and kinetics of oily sludge. Petroleum Processing and Petrochemicals, 2007, 38(7): 50-53.

[6] Jianguo Liu, Xiumin Jiang, Lingsheng Zhou, Xiangxin Han, ZhigangCui. Pyrolysis treatment of oil sludge and model-free kinetics analysis. Journal of Hazardous Materials, 161 (2009) 1208–1215.

DOI: 10.1016/j.jhazmat.2008.04.072

[7] Qiong Wang, Peng Zou. Pyrolysis of sewage sludge. Recycling Research, 2004(4): 38-41.

[8] Kaijin Zhu, Zhongliang Ma. Sludge treating process and resources utilization. Chemical Industry Press, Beijing, (2007).

[9] Shuiqing Li, Aimin Li, Yuan Ren, etc. Experimental investigation of paper mill sludge pyrolysis in the laboratory-scale rotary kiln. Journal of Engineering Thermophysics, 1999, 20(3): 373-377.

[10] Chao Chen, Shuiqing Li, Changtao Yue, etc. Lab-scale pyrolysis of oil sludge in continuous rotating reactor: mass/energy balance and product analysis. Journal of 　Chemical Industry and Engineering(China), 2006, 57(3): 650-657.

[11] Aimin Li, Shuiqing Li, Jianhua Yan, etc. Product analysis of organic waste pyrolysis in rotary kiln heated externally. Progress in Natural Sciences, 1999, 9(11): 1023-1031.

[12] Schmidt H，Kaminsky W．Pyrolysis of oil sludge in a fluidised reactor．Chemosphere，2001，45：285-290.

[13] Steven R．Process for the recovery of oil from waste oil sludges．USA，US4990237，Feb，5，1991.

[14] Shie J L, Chang C Y, Lin J P, etc. Resource recovery of oil sludge by pyrolysis：kinetic study. J. Chem. Technol Biotechno1, 2000, 75: 443-450.