Journal
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
Volume 101, Issue -, Pages 144-151Publisher
ELSEVIER
DOI: 10.1016/j.psep.2015.12.004
Keywords
Carbon footprint; Recycling; Polystyrene; Economical profit; CO2; Supercritical
Categories
Funding
- Consejeria de Educacion y Ciencia, Spain [PBI06-0139, PBI08-0248-9341]
- Junta de Comunidades de Castilla-La Mancha, Spain
- Tecnove-Fiberglass
- Spanish MEPSYD
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The incorporation of CO2 into new processes is one of the most important strategies for gas emissions mitigation that also would help to decrease the Carbon footprint. Recycling of wastes is also considered as a route to prevent greenhouse emissions as well as a source of interesting raw material. The process of recycling of polystyrene (PS) wastes using high-pressure CO2 as antisolvent and blowing agent in order to produce microcellular foams with enhanced properties was proposed, because the process could combine the benefits of both strategies for CO2 mitigation while high value-added materials were achieved. The technical, environmental and economical advantages of the recycling of polystyrene wastes were evaluated in an industrial and pilot-scale plant considering that CO2 could be recirculated during the process in several cycles in order to minimise its consumption while the economical profit is maximised. (C) 2016 Published by Elsevier B.V. on behalf of Institution of Chemical Engineers.
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