 Downdraft co-gasification of high ash biomass and plasticsA. Fazil, Sandeep Kumar and Sanjay M. Mahajani Energy, 2022, vol. 243, issue C Abstract: Co-gasification is gaining attention as a sustainable chemical recycling technology for the conversion of plastic waste and biomass into producer gas. Experimental study of the co-gasification of low density polyethylene waste plastic and garden waste biomass is performed in a downdraft gasifier to understand the viability of using plastic waste with high ash biomass (ash content above 10% w/w) as a feedstock and to investigate the quality of the gas obtained. By increasing the plastic content in the feedstock from 0 % wt. to 25 % wt., an increase of temperature is observed in all zones of the gasifier, improving the lower heating value of the gas produced from 3.5 MJ/Nm3 to 4.7 MJ/Nm3 and increasing the cold gas efficiency from 43.8% to 61.8%. It has also reduced the clinker formation from 3 % wt. to 0.65 % wt. in terms of the feedstock and slightly decreased the tar yield from 8.1 g/Nm3 to 5.7 g/Nm3. Further, by changing the equivalence ratio during the co-gasification, the effect on heating value, energetic yield and gas yield obtained is also reported. Keywords: Co-gasification; Biomass waste; Garden waste pellet; LDPE; Plastic waste; Downdraft gasifier (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:243:y:2022:i:c:s0360544221033041 DOI: 10.1016/j.energy.2021.123055 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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