Chemical (tertiary) recycling is a term used to refer to advanced
technology processes which convert plastic materials into smaller
molecules, usually liquids or gases, which are suitable for use as a
feedstock for the production of new petrochemicals and plastics
(Mastellone, 1999). The term chemical is used, due to the fact that
an alteration is bound to occur to the chemical structure of the
polymer. Products of chemical recycling have proven to be useful
as fuel. The technology behind its success is the depolymerization
processes that can result in a very profitable and sustainable industrial
scheme, providing a high product yield and minimum waste.
Under the category of chemical recycling advanced process (similar
to those employed in the petrochemical industry) appear e.g.
pyrolysis, gasification, liquid–gas hydrogenation, viscosity breaking,
steam or catalytic cracking and the use of PSW as a reducing
agent in blast furnaces.
Chemical (tertiary) recycling is a term used to refer to advancedtechnology processes which convert plastic materials into smallermolecules, usually liquids or gases, which are suitable for use as afeedstock for the production of new petrochemicals and plastics(Mastellone, 1999). The term chemical is used, due to the fact thatan alteration is bound to occur to the chemical structure of thepolymer. Products of chemical recycling have proven to be usefulas fuel. The technology behind its success is the depolymerizationprocesses that can result in a very profitable and sustainable industrialscheme, providing a high product yield and minimum waste.Under the category of chemical recycling advanced process (similarto those employed in the petrochemical industry) appear e.g.pyrolysis, gasification, liquid–gas hydrogenation, viscosity breaking,steam or catalytic cracking and the use of PSW as a reducingagent in blast furnaces.
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