Abstract
End of life packaging is nowadays one of the major environmental problems due to its short usage time, the low biodegradability, and the big volume occupied. In this context, gasification is one of the most promising chemical recycling techniques. Some non-recyclable or non-compostable waste gasification plants are already operating such as Enerkem Alberta Biofuels in Canada or the Sierra’s FastOx Pathfinder in California. In this review, we have examined works about plastic gasification from the last fifteen years with a specific focus on polyolefin (PP, PE), plastics mix, and co-gasification of plastic with biomass. For each of these, the best operating conditions were investigated. A very in-depth section was dedicated to supercritical water gasification (SCWG). The most used reactors in gasification processes are fluidized bed reactors together with air or steam as gasifying agents. Tar removal is commonly performed using olivine, dolomite, or nickel based catalysts. SCWG has numerous advantages including the inhibition of tar and coke formation and can be used to remove microplastics from the marine environment. In co-gasification of plastic material with coal or biomass, synergistic effects are observed between the raw materials, which improve the performance of the process, allowing to obtain higher gas yields and a syngas with a high energy content.
Funder
Fondazione Cassa di Risparmio di Firenze
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Reference156 articles.
1. Our plastic age
2. Current state and future prospects of plastic waste as source of fuel: A review
3. Direttiva 2008/98/CEhttps://eur-lex.europa.eu/legal-content/IT/TXT/PDF/?uri=CELEX:02008L0098-20150731&from=ET
4. Plastics—The Facts-2019https://www.plasticseurope.org/it/resources/publications/1804-plastics-facts-2019
5. Polymers for Innovative Food Packaginghttps://web.wpi.edu/Pubs/E-project/Available/E-project-050610124822/unrestricted/Polymers_for_Innovative_Food_Packaging.pdf
Cited by
55 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献