title: Extracting oil from used auto tires at low temperature after chemical treatment.
abstract: This study presents an alternative tactic to pyrolysis of auto tires avoiding the use of high temperature and increasing the yield of oil produced. It depends on a simple chemical treatment of auto tires with sodium carbonate at low temperature (50°C) followed by solvent extraction. This treatment produced two folds of the yield that can be obtained using normal solvent extraction. The experimental results suggests that sodium carbonate is responsible for breakage of CS bond in the main structure of auto tires making solvent extraction easier. Additionally, the sulphur content of the extracted oil using the sodium carbonate treatment is reduced significantly (by about 28%) making the product more favorable energy/fuel source. This technique allows about 30wt.% of oil to be extracted from the used auto tires at 50°C under atmospheric pressure resulted from the breakage of the sulphur cross-linking by the sodium carbonate.
authors.affiliation: Chemical Engineering Department, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan.
authors.forename: Munther
authors.initials: M
authors.lastname: Kandah
authors.affiliation: Chemical Engineering Department, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan.
authors.forename: Awni
authors.initials: A
authors.lastname: Al-Otoom
authors.affiliation: Chemical Engineering Department, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan. Electronic address: msalharahsheh@just.edu.jo.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Al-Harahsheh
authors.affiliation: Department of Chemistry, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan.
authors.forename: Raed M
authors.initials: RM
authors.lastname: Al-Zoubi
authors.affiliation: Department of Chemical Engineering, Mutah University, Mutah, Jordan.
authors.forename: Adnan
authors.initials: A
authors.lastname: Al-Harahsheh
mesh_terms: D000096:Acetone / Q000737:chemistry; D001336:Automobiles; D005591:Chemical Fractionation; D006586:Hexanes / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D009821:Oils / Q000032:analysis / Q000737:chemistry*; D012408:Rubber / Q000737:chemistry; D062611:Solid Waste; D012997:Solvents / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013455:Sulfur / Q000737:chemistry; D013696:Temperature; D018505:Waste Management / Q000379:methods*
chemical_list: D006586:Hexanes; D009821:Oils; D062611:Solid Waste; D012997:Solvents; D000096:Acetone; D013455:Sulfur; D012408:Rubber
keywords: Oil yield; Solvent extraction; Sulphur content; Tyres