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Fast pyrolysis as a valorization mechanism for banana rachis and low-density polyethylene waste

  • Banana rachis and low-density polyethylene (LDPE) were selected as secondary feedstocks for the study of fast pyrolysis in a free-fall reactor. The experiments were performed at 600 °C for banana rachis and 450 °C for LDPE, based on literature and thermogravimetric analysis. The gaseous products of both feedstocks present similar composition in the C1-C2 compounds, while C3 compounds are only found in LDPE. The liquid products from banana and LDPE correspond to functional groups and shorter hydrocarbons, respectively. Scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) analyses of the char showed important morphological changes to spheres in LDPE and structural changes due to thermal decomposition in the biomass. The pyrolysis char has high potential as adsorbent, encapsulation, or catalyst.

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Author of HS ReutlingenAlmeida Streitwieser, Daniela
Erschienen in:Chemical engineering & technology : industrial chemistry, plant equipment, process engineering, biotechnology
Place of publication:Weinheim
Document Type:Journal article
Publication year:2021
Issue:11, Special Issue: CHISA 2021 virtually
Page Number:8
First Page:2092
Last Page:2099
DDC classes:660 Technische Chemie
Open access?:Ja
Licence (German):License Logo  Creative Commons - CC BY - Namensnennung 4.0 International