2020
DOI: 10.1016/j.psep.2020.04.040
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Screening of common synthetic polymers for depolymerization by subcritical hydrothermal liquefaction

Abstract: Hydrothermal liquefaction could potentially utilize mixed plastic wastes for sustainable biocrude production, however the fate of plastics under HTL is largely unexplored for the same reaction conditions.In this study, we evaluate how synthetic waste polymers can be depolymerized to bio-crude or platform chemicals using HTL at typical conditions expected in future commercial applications with and without alkali catalyst (potassium hydroxide). We evaluate different characteristics for HTL processing of polyacry… Show more

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Cited by 63 publications
(118 citation statements)
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“…For both oils, the GC-MS analysis does not show the presence of C6-C11 paraffins and C6-C13 olefins, typical products of the degradation of polyolefins [17]. This result is in agreement with the literature [8], since supercritical conditions are required for polyolefins degradation [17].…”
Section: Oil Characterizationsupporting
confidence: 90%
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“…For both oils, the GC-MS analysis does not show the presence of C6-C11 paraffins and C6-C13 olefins, typical products of the degradation of polyolefins [17]. This result is in agreement with the literature [8], since supercritical conditions are required for polyolefins degradation [17].…”
Section: Oil Characterizationsupporting
confidence: 90%
“…Sodium hydroxide also causes an increase in oxygenated compounds (5,34% w/w) and compounds containing in their structure more than one benzene ring (3,72% w/w). As suggested by literature [8], basic catalysts promote the decomposition of nylon, giving rise to caprolactam (0.72% w/w). Through the combined use of GC-MS and GC-FID, 13.6% w/w of the compounds in the oil were characterized and quantified.…”
Section: Oil Characterizationmentioning
confidence: 81%
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