Direct liquefaction of waste plastics and coliquefaction of waste plastics with coal

Conference · Sat Dec 30 23:00:00 EST 1995

OSTI ID:200487

Huffman, G P; Feng, Z; Huggins, F E; Mahajan, V ^[1]

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1. Univ. of Kentucky, Lexington, KY (United States)

In previous work, we have investigated the direct liquefaction of medium and high density polyethylene (PE), polypropylene (PPE), poly(ethylene terephthalate) (PET), and a mixed plastic waste, and the coliquefaction of these plastics with coals of three different ranks. The results established that a solid acid catalyst (HZSM-5 zeolite) was highly active for the liquefaction of the plastics alone, typically giving oil yields of 80-95% and total conversions of 90-100% at temperatures of 430-450{degrees}C. In the coliquefaction experiments, 50:50 mixtures of plastic and coal were used with a tetralin solvent(tetralin:solid = 3:2). Using {approximately}1% of the HZSM-5 catalyst and a nanoscale iron catalyst, oil yields of 50-70% and total conversions of 80-90% were typical. In the current work, we have conducted further investigations of the liquefaction reactions of PE and a commingled waste plastic, and the coliquefaction reactions of PE, PPE and Black Thunder subbituminous coal. Several different catalysts have been used in these studies.

• DOE Contract Number: FC22-93PC93053
• OSTI ID: 200487
• Report Number(s): CONF-950963--Vol.2
• Country of Publication: Netherlands
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYTIC EFFECTS
COPROCESSING
IRON COMPOUNDS
MIXTURES
MUNICIPAL WASTES
PLASTICS
POLYETHYLENES
POLYPROPYLENE
POLYSTYRENE
PRESSURE DEPENDENCE
SILICA
SUBBITUMINOUS COAL
WASTE MANAGEMENT
ZEOLITES