Characterization and Utilization of Char Derived from Fast Pyrolysis of Plastic Wastes

Article Preview

Abstract:

HDPE plastic wastes were fast pyrolyzed at temperature of 400-450°C and char (solid residues) obtained were collected and analyzed. Proximate and ultimate analyses showed that pyrolysis char had a large amount of volatile matter (51.40%) and fixed carbon (46.03%), small amount of moisture (2.41%) and little amount of ash (0.16%). Contents of carbon, hydrogen, nitrogen, and sulfur were found to be 42.65, 3.06, 0.43%, and 1.80%, respectively. Calorific value and density of the char were also determined and reported as 4,500 cal/g and 1.59 g/cm3, respectively. Char derived from the fast pyrolysis of HDPE plastic wastes was crushed into powder and extruded to produce briquettes. One kilogram of the char based briquette was used as a fuel for the combustion process (boiling water). Atmospheric-pressure thermal activation at 900°C for 3 hours was performed to promote surface area and specific pore volume of the char. Undergoing such an activation process, BET surface area and pore volume of the char were increased by 55% and 44% whereas pore size was reduced by 5%, corresponding to the values of 16.77 m2/g, 0.2080 cm3/g and 496 Å, respectively.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 931-932)

Pages:

849-853

Citation:

Online since:

May 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Waste and Hazardous Substance Management Bureau, Ministry of Natural Resources and Environment, Thailand, General information and management of plastics and foams, Final report of the project Reduction of plastic and foam usage, (2008).

Google Scholar

[2] A. Demirbas, Pyrolysis of municipal plastic wastes for recovery of gasoline-range hydrocarbons, Journal of Analytical and Applied Pyrolysis. 72 (2004) 97-102.

DOI: 10.1016/j.jaap.2004.03.001

Google Scholar

[3] E.A. Williams, P.T. Williams, Analysis of products derived from the fast pyrolysis of plastic waste, Journal of Analytical and Applied Pyrolysis. 40-41 (1997) 347-363.

DOI: 10.1016/s0165-2370(97)00048-x

Google Scholar

[4] W.K. Buah, A.M. Cunliffe, P.T. Williams, Characterization of products from the pyrolysis of municipal solid waste, Process Safety and Environmental Protection. 85 (2007) 450-457.

DOI: 10.1205/psep07024

Google Scholar

[5] A.A. Zabaniotou, G. Stavropoulos, Pyrolysis of used automobile tires and residual char utilization, Journal of Analytical and Applied Pyrolysis. 70 (2003) 711-722.

DOI: 10.1016/s0165-2370(03)00042-1

Google Scholar

[6] A.Y. Bilgesu, M.C. Kocak, A. Karaduman, Waste plastic pyrolysis in free-fall reactors, in: J. Scheirs, W. Kaminsky (Eds. ), Feedstock recycling and pyrolysis of waste plastics: Converting waste plastics into diesel and other fuels, John Wiley and Sons Ltd, UK, (2006).

DOI: 10.1002/0470021543.ch23

Google Scholar

[7] B.B. Uzun, E. Apaydin-Varol, F. Ates, N. Ozbay, A.E. Putun, Synthetic fuel production from tea waste: Characterization of bio-oil and bio-char, Fuel. 89 (2010) 176-184.

DOI: 10.1016/j.fuel.2009.08.040

Google Scholar

[8] H.B. Goyal, S. Diptendu, R.C. Saxena, Bio-fuels from thermochemical conversion of renewable resources, Renewable Sustainable Energy Research. 12 (2008) 504-517.

DOI: 10.1016/j.rser.2006.07.014

Google Scholar

[9] A. López, I. de Marco, B.M. Caballero, M.F. Laresgoiti, A. Adrados, Pyrolysis of municipal plastic wastes: Influence of raw material composition, Waste Management. 30 (2010) 620-627.

DOI: 10.1016/j.wasman.2009.10.014

Google Scholar

[10] M. Abu-Qudais, H.A. Abu-Qdais, Energy content of municipal solid waste in Jordan and its potential utilization, Energy Conversion and Management. 41 (2000) 983-991.

DOI: 10.1016/s0196-8904(99)00155-7

Google Scholar

[11] S. Luo, B. Xiao, Z. Hu, S. Liu, Effect of particle size on pyrolysis of single-component municipal solid waste in fixed bed reactor, International Journal of Hydrogen Energy. 35 (2010) 93-97.

DOI: 10.1016/j.ijhydene.2009.10.048

Google Scholar

[12] C.E. Brewer, K. Schmidt-Rohr, J.A. Satrio, R.C. Brown, Characterization of biochar from fast pyrolysis and gasification systems, Environmental Progress & Sustainable Energy. 28 (2009) 386-396.

DOI: 10.1002/ep.10378

Google Scholar

[13] R. Miranda, H. Pakdel, C. Roy, C. Vasile, Vacuum pyrolysis of commingled plastics containing PVC II. Product analysis, Polymer Degradation and Stability. 73 (2001) 47-67.

DOI: 10.1016/s0141-3910(01)00066-0

Google Scholar