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Title: Direct liquefaction of plastics and coprocessing of coal with plastics

Abstract

The objectives of this work were to optimize reaction conditions for the direct liquefaction of waste plastics and the coprocessing of coal with waste plastics. In previous work, 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 was studied. 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 conversion of 80-90% were typical. In the current year, further investigations were conducted of the liquefaction of PE, PPE, and a commingled waste plastic obtained from the American Plastics Council (APC), and the coprocessing of PE, PPE and the APC plastic with Black Thunder subbituminous coal. Several different catalysts were used in these studies.

Authors:
; ;  [1]
  1. Univ. of Kentucky, Lexington, KY (United States)
Publication Date:
Research Org.:
USDOE Pittsburgh Energy Technology Center, PA (United States)
OSTI Identifier:
198287
Report Number(s):
CONF-9508133-
ON: DE96001664; TRN: 95:008316-0044
DOE Contract Number:  
FC22-93PC93053
Resource Type:
Conference
Resource Relation:
Conference: Coal liquefaction and gas conversion contractor review meeting, Pittsburgh, PA (United States), 29-31 Aug 1995; Other Information: PBD: [1995]; Related Information: Is Part Of Coal liquefaction and gas conversion contractors review conference: Proceedings; PB: 733 p.
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL LIQUEFACTION; CHEMICAL REACTIONS; SUBBITUMINOUS COAL; COPROCESSING; PLASTICS; CHEMICAL REACTORS; PRODUCTION

Citation Formats

Huffman, G.P., Feng, Z., and Mahajan, V. Direct liquefaction of plastics and coprocessing of coal with plastics. United States: N. p., 1995. Web.
Huffman, G.P., Feng, Z., & Mahajan, V. Direct liquefaction of plastics and coprocessing of coal with plastics. United States.
Huffman, G.P., Feng, Z., and Mahajan, V. Sun . "Direct liquefaction of plastics and coprocessing of coal with plastics". United States. https://www.osti.gov/servlets/purl/198287.
@article{osti_198287,
title = {Direct liquefaction of plastics and coprocessing of coal with plastics},
author = {Huffman, G.P. and Feng, Z. and Mahajan, V.},
abstractNote = {The objectives of this work were to optimize reaction conditions for the direct liquefaction of waste plastics and the coprocessing of coal with waste plastics. In previous work, 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 was studied. 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 conversion of 80-90% were typical. In the current year, further investigations were conducted of the liquefaction of PE, PPE, and a commingled waste plastic obtained from the American Plastics Council (APC), and the coprocessing of PE, PPE and the APC plastic with Black Thunder subbituminous coal. Several different catalysts were used in these studies.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}

Conference:
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