Research Aiming Simultaneously Recycling of Waste Polyolefins by Pyrolysis, in Order to Obtain Some Fuels for Compression Ignition Engines

Abstract:

This paper presents the undertaken research for the establishment of the compatibility of some polyolefin waste to be recycled by pyrolysis. Polyolefin are materials produced by a polymerization process of unsaturated aliphatic hydrocarbons and represents the most important group of plastic materials. It is important to mention that among polyolefin, polyethylene (PE) and polypropylene (PP) own the first places as quantity of produced waste. Due to the common origin of the two plastic materials (PE and PP) and the relatively close melting points, we chose them for the obtaining of some fuels which are compatible with compression ignition engines. Starting from 100 % PE, the weight concentration of PP was increased up to 100%, the results of the undertaken experiments and measurements allowed us, in the final, to draw the chart of the variation of the yield of solid-liquid conversion as a function of weight concentration of the two chosen materials subjected to the process of recycling by pyrolysis.

• Periodical: Applied Mechanics and Materials (Volume 822)
• Pages: 235-242
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.822.235
• Online since: January 2016
• Authors: George Liviu Popescu, Nicolae Filip, Violeta Popescu*
• Keywords: Fuel, Hydrocarbons, Polyolefin, Pyrolysis, Recycling, Yield

References

[1] V. Popescu, O. Horovitz, T. RUSU, M. Bejan, G.L. Popescu, Recycling of the composite materials with organic matrix I. The recycling of materials, pyrolysis, National Conference - with international participation - Dorin Pavel, Romanian Hydroelectricity founder, Sebes 2006, Science and Engineering, vol. X, ED. AGIR, Bucuresti, 2006, p.81.

[2] Y. Sakata, M. A. Uddin, K. Koizumi, K. Murata, Thermal degradation of polyethylene mixed with polyvinylchloride and polyethyleneterephthalate, Chemistry Letters, 3, 1996, p.245.

[3] http: /www. plastic2oil. com/site/home (Accessed August 06, 2015).

[4] ** Converting Waste Plastics into a Resource - Compendium of Technologies, Compiled by United Nations Environmental Programme Division of Technology, Industry and Economics International Environmental Technology Centre Osaka/Shiga, Japan, (2009).

[5] http: /www. niutech-energy. com/product/showproduct. php?id=10&lang=en&gclid= CJ7u6aGc88ACFdMbtAodkyQAUw (Accessed August 06, 2015).

[6] http: /www. pyrolysis-oil. com/pyrolysis-machine/15. html (Accessed August 06, 2015).

[7] V. Popescu, O. Horovitz, T. RUSU, M. Bejan, G.L. Popescu, Recycling of the composite materials with organic matrix III. Methods for fiber reinforced composites recycling. National Conference - with international participation - Dorin Pavel, Romanian Hydroelectricity founder, Sebes 2006, Science and Engineering, vol. X, ED. AGIR, Bucuresti, 2006, p.89.

[8] Y. Uemichi, Y. Kashiwaya, M. Tsudate, A. Ayame, H. Kanoh, Product Distribution in Degradation of Polypropylene over Silica-Alumina and CaX Zeolite Catalysts, Bull. Chem. Soc. Jpn., 54, 1983, p.2767.

DOI: 10.1246/bcsj.56.2768

[9] J.M. Arandes, I. Torre, M.J. Azkoiti, P. Castaño, J. Bilbao, H. de Lasa, Effect of catalyst properties on the cracking of polypropylene pyrolysis waxes under FCC conditions, Catalysis Today, 133-135 (1-4), 2008, p.413.

DOI: 10.1016/j.cattod.2007.12.080

[10] Z. Obali, N.A. Sezgi, T. Dogu, Performance of Acidic MCM-41 like Aluminosilicate Catalysts in Pyrolysis of Polypropylene, Chemical Engineering Communications, 196 (1-2), 2009, p.116.

DOI: 10.1080/00986440802301537

[11] Y. Uemichi, A. Ayame, H. Kanoh, Gasification of Polyethylene over Solid Acid Catalyst. Part 4. Gasification over Sodium X Zeolite and Silica-Alumina in a Fixed Bed Tubular Flow Reactor , Nippon Kagaku Kaishi, 1980, p.1741.

DOI: 10.1627/jpi1958.23.35

[12] M.A. Uddin, K. Koizumi, K. Murata, Y. Sakata, Thermal and catalytic degradation of structurally different types of polyethylene into fuel oil, Polymer Degradation and Stability, 56, 1997, p.37.

DOI: 10.1016/s0141-3910(96)00191-7

[13] H. Ohikita, R. Nishiyama, Y. Tochihara, T. Mizushima, N. Kurata, Y. Morioka, A. Ueno, Y. Namiki, S. Tanifuji, H. Kotoh, H. Sunazuka, R. Nakayama, T. Kuroyanagi, Acid properties of silica-alumina catalysts and catalytic degradation of polyethylene, Ind. Eng. Chem. Res., 32, 1993, p.3112.

DOI: 10.1021/ie00024a021

[14] G.L. Popescu, N. Filip, V. Popescu, Research on the implementation of alternative fuels obtained from polymeric materials for agricultural tractors, ACTUAL TASKS ON AGRICULTURAL ENGINEERING, Vol. 39, p.39, Opatija-Croatia, (2011).

[15] G.L. Popescu, N. Filip, Research regarding the possibilities to use as fuel the waste from polyethylene, CONAT International Congress on Automotive and Transport Engineering, Vol. 3/4, p.255, Brasov, (2010).