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Title: Depolymerization of polypropylene in an induction-coupled plasma (ICP) reactor

Abstract

An induction-coupled plasma reactor was used to thermally decompose polypropylene into propylene and other useful chemicals. From a series of statistically designed experiments, it was found that plasma power input, sheath gas flow rate, central gas flow rate, powder feed rate, quench gas flow rate, and interaction of sheath gas flow rate with power and feed rate were the key parameters affecting the yield of monomer in the product gas stream. On average, 78 wt % of the polymer was converted into gas at a power level of 20 kVA. The product gas stream, on an argon-free basis, contained 94% propylene, with the balance being methane, ethylene, and some C{sub 4}'s. Transmission electron microscopic analysis of the carbon residue indicated the formation of some novel carbon structures, including carbon nanotubes.

Authors:
; ;
Publication Date:
Research Org.:
Drexel Univ., Philadelphia, PA (US)
Sponsoring Org.:
USDOE
OSTI Identifier:
20076067
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Journal Article
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 39; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 0888-5885
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; POLYPROPYLENE; DEPOLYMERIZATION; PLASMA FURNACES; PARAMETRIC ANALYSIS; PROPYLENE; CHEMICAL REACTION YIELD; METHANE; ETHYLENE; MUNICIPAL WASTES; RECYCLING

Citation Formats

Guddeti, R.R., Knight, R., and Grossmann, E.D. Depolymerization of polypropylene in an induction-coupled plasma (ICP) reactor. United States: N. p., 2000. Web. doi:10.1021/ie9906868.
Guddeti, R.R., Knight, R., & Grossmann, E.D. Depolymerization of polypropylene in an induction-coupled plasma (ICP) reactor. United States. doi:10.1021/ie9906868.
Guddeti, R.R., Knight, R., and Grossmann, E.D. Mon . "Depolymerization of polypropylene in an induction-coupled plasma (ICP) reactor". United States. doi:10.1021/ie9906868.
@article{osti_20076067,
title = {Depolymerization of polypropylene in an induction-coupled plasma (ICP) reactor},
author = {Guddeti, R.R. and Knight, R. and Grossmann, E.D.},
abstractNote = {An induction-coupled plasma reactor was used to thermally decompose polypropylene into propylene and other useful chemicals. From a series of statistically designed experiments, it was found that plasma power input, sheath gas flow rate, central gas flow rate, powder feed rate, quench gas flow rate, and interaction of sheath gas flow rate with power and feed rate were the key parameters affecting the yield of monomer in the product gas stream. On average, 78 wt % of the polymer was converted into gas at a power level of 20 kVA. The product gas stream, on an argon-free basis, contained 94% propylene, with the balance being methane, ethylene, and some C{sub 4}'s. Transmission electron microscopic analysis of the carbon residue indicated the formation of some novel carbon structures, including carbon nanotubes.},
doi = {10.1021/ie9906868},
journal = {Industrial and Engineering Chemistry Research},
issn = {0888-5885},
number = 5,
volume = 39,
place = {United States},
year = {2000},
month = {5}
}