Sequential pyrolysis of plastic to recover polystyrene HCL and terephthalic acid
Abstract
A process of pyrolyzing plastic waste feed streams containing polyvinyl chloride, polyethylene terephthalate, polystyrene and polyethylene to recover polystyrene HCl and terephthalic acid comprising: heating the plastic waste feed stream to a first temperature; adding an acid or base catalyst on an oxide or carbonate support; heating the plastic waste feed stream to pyrolyze polyethylene terephthalate and polyvinyl chloride; separating terephthalic acid or HCl; heating to a second temperature to pyrolyze polystyrene; separating styrene; heating the waste feed stream to a third temperature to pyrolyze polyethylene; and separating hydrocarbons.
- Inventors:
-
- Lakewood, CO
- Arvada, CO
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 870145
- Patent Number(s):
- 5464602
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- sequential; pyrolysis; plastic; recover; polystyrene; hcl; terephthalic; acid; process; pyrolyzing; waste; feed; streams; containing; polyvinyl; chloride; polyethylene; terephthalate; comprising; heating; stream; temperature; adding; base; catalyst; oxide; carbonate; support; pyrolyze; separating; styrene; third; hydrocarbons; streams containing; vinyl chloride; sequential pyrolysis; polyvinyl chloride; waste feed; feed stream; plastic waste; feed streams; acid comprising; containing poly; recover polystyrene; carbonate support; polystyrene hcl; /423/585/588/
Citation Formats
Evans, Robert J, and Chum, Helena L. Sequential pyrolysis of plastic to recover polystyrene HCL and terephthalic acid. United States: N. p., 1995.
Web.
Evans, Robert J, & Chum, Helena L. Sequential pyrolysis of plastic to recover polystyrene HCL and terephthalic acid. United States.
Evans, Robert J, and Chum, Helena L. Sun .
"Sequential pyrolysis of plastic to recover polystyrene HCL and terephthalic acid". United States. https://www.osti.gov/servlets/purl/870145.
@article{osti_870145,
title = {Sequential pyrolysis of plastic to recover polystyrene HCL and terephthalic acid},
author = {Evans, Robert J and Chum, Helena L},
abstractNote = {A process of pyrolyzing plastic waste feed streams containing polyvinyl chloride, polyethylene terephthalate, polystyrene and polyethylene to recover polystyrene HCl and terephthalic acid comprising: heating the plastic waste feed stream to a first temperature; adding an acid or base catalyst on an oxide or carbonate support; heating the plastic waste feed stream to pyrolyze polyethylene terephthalate and polyvinyl chloride; separating terephthalic acid or HCl; heating to a second temperature to pyrolyze polystyrene; separating styrene; heating the waste feed stream to a third temperature to pyrolyze polyethylene; and separating hydrocarbons.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}
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