Stability of Pyrolysis Oil-Water Emulsion

Article Preview

Abstract:

Emulsification of pyrolysis oil produced from plastic waste has been experimented. The employed cascade heating steps and heating rates pyrolysis process provides 80% product yield using waste plastic or recycles HDPE pellets as a raw material. Water-in-oil emulsion is produced ultrasonically and mechanically with Span80 as a surfactant. The emulsion stability was assessed by water droplet size and visual observation of any phase separation. An ultrasonic mixer is found to be more effective than mechanical homogenizer in terms of homogenous stability to emulsify plastic oil with water. For emulsion with 10% water by volume, the emulsion is observed to be stable for up to 24 hours after mixing.

You might also be interested in these eBooks

Info:

* - Corresponding Author

[1] Brajendra K. Sharma, Bryan R. Moser, Karl E. Vermillion, Kenneth M. Doll, and Nandakishore Rajagopalan: Production, characterization and fuel properties of alternative diesel fuel from pyrolysis of waste plastic grocery bags. Fuel Process Technol. Vol. 122 (2014).

DOI: 10.1016/j.fuproc.2014.01.019

Google Scholar

[2] M. Mani, C. Subash, and G. Nagarajan: Performance, emission and combustion characterization of a DI diesel engine using waste plastic oil. Appl. Therm. Eng. Vol. 29 (2009), pp.2738-2744.

DOI: 10.1016/j.applthermaleng.2009.01.007

Google Scholar

[3] Yocai Liang, Gequn Shu, Haiqiao Wei, and Wei Zhang: Effect of oxygen enriched combustion and water-diesel engine. Energ. Convers. Manage. Vol. 73 (2013), pp.69-77.

DOI: 10.1016/j.enconman.2013.04.023

Google Scholar

[4] A. Abouljas, T. Makayssi, L. Bilali, K. El harfi, M. Nadifiyine, and M. Benchanaa: Co-pyrolysis of oil shale and High density polyethylene: Structural characterization of the oil. Fuel Process. Technol. Vol. 96 (2012), pp.203-208.

DOI: 10.1016/j.fuproc.2011.12.003

Google Scholar

[5] Y. Kitamura, Q. Huang, Y. Oka, and T. Takahashi: Flashing of superheated water in oil emulsions – microexplosion of emulsified fuel. J. Chem. Eng. Jpn. Vol. 23 (1990), pp.711-715.

DOI: 10.1252/jcej.23.711

Google Scholar

[6] E. Mura, P. Massoli, C. Josset, K. Loubar, and J. Bellettre: Study of the micro-explosin temperature of water in oil emulsion droplets during the Leidenfrost effect. Exp. Therm. Fluid Sci. Vol. 43 (2012), pp.63-70.

DOI: 10.1016/j.expthermflusci.2012.03.027

Google Scholar

[7] A. Attia and A. R. Kulchitskiy: Influence of the structure of water-in-fuel emission on diesel engine performance. Fuel Vol. 116 (2014), pp.703-708.

DOI: 10.1016/j.fuel.2013.08.057

Google Scholar

[8] Khanet Thepoharak, Kraipat Cheenkachorn, and Thanes Utistham: Pyrolysis of waste lubricating oil. Master Thesis, King Mongkut's University of Technology North Bangkok (2012).

Google Scholar

[9] N. Ongsirimongkol and M. H. Narasingha: Effects of Stabilizing Agents on Stability and Rheological Characteristics of the Highly-Loaded Coal-Water Slurry. International Journal of Chemical Engineering and Applications Vol. 3 (2012), pp.49-52.

DOI: 10.7763/ijcea.2012.v3.158

Google Scholar

[10] Xiaoxiang Jian and Naoko Ellis: Upgrading Bio-oil through Emulsification with Biodiesel: Mixture Production, Energy Fuels Vol. 24 (2010) , pp.1358-1364.

DOI: 10.1021/ef9010669

Google Scholar