COAL/POLYMER COPROCESSING WITH EFFICIENT USE OF HYDROGEN

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Environmental and economical concerns over diminishing landfill space and the growing abundance of mixed plastic waste mandate development of viable strategies for recovering high-valued resources from waste polymers. Co-processing of waste polymer mixtures with coal allows for the simultaneous conversion of coal and plastics into high-valued fuels. However, there is limited information about the underlying reaction pathways, kinetics, and mechanisms controlling coal liquefaction in the presence of polymeric materials. A series of model compound experiments has been conducted, providing a starting point for unraveling the complex, underlying chemistry. Neat pyrolysis studies of model compounds of polyethylene and coal were conducted ... continued below

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9 pages

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BROADBELT, DR. LINDA J. & WITT, MATTHEW J. DE March 20, 1997.

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Description

Environmental and economical concerns over diminishing landfill space and the growing abundance of mixed plastic waste mandate development of viable strategies for recovering high-valued resources from waste polymers. Co-processing of waste polymer mixtures with coal allows for the simultaneous conversion of coal and plastics into high-valued fuels. However, there is limited information about the underlying reaction pathways, kinetics, and mechanisms controlling coal liquefaction in the presence of polymeric materials. A series of model compound experiments has been conducted, providing a starting point for unraveling the complex, underlying chemistry. Neat pyrolysis studies of model compounds of polyethylene and coal were conducted in batch reactors. Tetradecane (C{sub 14} H{sub 30} ) was used as a polyethylene mimic, and 4-(naphthylmethyl)bibenzyl (NBBM) was used as a coal model compound. Reaction temperatures were 420 and 500 C, and batch reaction times ranged from 5--150 minutes. Detailed product analysis using gas chromatography and mass spectrometry enabled the reactant conversion and product selectivities to be determined. Reaction of single components and binary mixtures allowed the kinetic coupling between feedstocks to be examined.

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9 pages

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OSTI as DE00007927

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  • Other Information: PBD: 20 Mar 1997

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  • Report No.: DE--FG22-96PC96204--01
  • Grant Number: FG22-96PC96204
  • DOI: 10.2172/7927 | External Link
  • Office of Scientific & Technical Information Report Number: 7927
  • Archival Resource Key: ark:/67531/metadc736260

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Office of Scientific & Technical Information Technical Reports

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  • March 20, 1997

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 15, 2016, 1:49 p.m.

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BROADBELT, DR. LINDA J. & WITT, MATTHEW J. DE. COAL/POLYMER COPROCESSING WITH EFFICIENT USE OF HYDROGEN, report, March 20, 1997; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc736260/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.