Production, characterization and fuel properties of alternative diesel fuel from pyrolysis of waste plastic grocery bags

Brajendra K. Sharma, Bryan R. Moser, Karl E. Vermillion, Kenneth M. Doll, Nandakishore Rajagopalan

Research output: Contribution to journalArticle

Abstract

Pyrolysis of HDPE waste grocery bags followed by distillation resulted in a liquid hydrocarbon mixture with average structure consisting of saturated aliphatic paraffinic hydrogens (96.8%), aliphatic olefinic hydrogens (2.6%) and aromatic hydrogens (0.6%) that corresponded to the boiling range of conventional petroleum diesel fuel (#1 diesel 190-290 C and #2 diesel 290-340 C). Characterization of the liquid hydrocarbon mixture was accomplished with gas chromatography-mass spectroscopy, infrared and nuclear magnetic resonance spectroscopies, size exclusion chromatography, and simulated distillation. No oxygenated species such as carboxylic acids, aldehydes, ethers, ketones, or alcohols were detected. Comparison of the fuel properties to the petrodiesel fuel standards ASTM D975 and EN 590 revealed that the synthetic product was within all specifications after addition of antioxidants with the exception of density (802 kg/m3). Notably, the derived cetane number (73.4) and lubricity (198 μm, 60 C, ASTM D6890) represented significant enhancements over those of conventional petroleum diesel fuel. Other fuel properties included a kinematic viscosity (40 C) of 2.96 mm2/s, cloud point of 4.7 C, flash point of 81.5 C, and energy content of 46.16 MJ/kg. In summary, liquid hydrocarbons with appropriate boiling range produced from pyrolysis of waste plastic appear suitable as blend components for conventional petroleum diesel fuel.

Original languageEnglish (US)
Pages (from-to)79-90
Number of pages12
JournalFuel Processing Technology
Volume122
DOIs
StatePublished - Jun 2014

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Diesel fuels
Suckling Animals
Pyrolysis
Crude oil
Hydrocarbons
Hydrogen
Liquids
Ammotherapy
Birth Certificates
Equipment and Supplies
Distillation
Boiling liquids
Plastics
Chlorella
Agglutination Tests
Antiknock rating
Size exclusion chromatography
Alternative fuels
High density polyethylenes
Antioxidants

Keywords

  • Biodiesel
  • Diesel
  • Fuel
  • High-density polyethylene
  • Plastic
  • Pyrolysis

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Chemical Engineering(all)

Cite this

Production, characterization and fuel properties of alternative diesel fuel from pyrolysis of waste plastic grocery bags. / Sharma, Brajendra K.; Moser, Bryan R.; Vermillion, Karl E.; Doll, Kenneth M.; Rajagopalan, Nandakishore.

In: Fuel Processing Technology, Vol. 122, 06.2014, p. 79-90.

Research output: Contribution to journalArticle

Sharma, Brajendra K.; Moser, Bryan R.; Vermillion, Karl E.; Doll, Kenneth M.; Rajagopalan, Nandakishore / Production, characterization and fuel properties of alternative diesel fuel from pyrolysis of waste plastic grocery bags.

In: Fuel Processing Technology, Vol. 122, 06.2014, p. 79-90.

Research output: Contribution to journalArticle

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