Publikationstyp: Beitrag in wissenschaftlicher Zeitschrift
Art der Begutachtung: Keine Angabe
Titel: Improving the energy-related aspects of biowaste treatment in an experimental hydrothermal carbonization reactor
Autor/-in: Lohri, Christian
Zabaleta, Imanol
Rohr, Manuel
Baier, Urs
Zurbrügg, Christian
DOI: 10.1007/s12649-016-9746-3
Erschienen in: Waste and Biomass Valorization
Band(Heft): 9
Heft: 3
Seite(n): 429
Seiten bis: 442
Erscheinungsdatum: 2016
Verlag / Hrsg. Institution: Springer
ISSN: 1877-2641
1877-265X
Sprache: Englisch
Schlagwörter: Organic Waste; Carbonisierung; Bioabfall; Hydrochar
Fachgebiet (DDC): 660: Technische Chemie
Zusammenfassung: Hydrothermal carbonization (HTC) is a thermochemical conversion process with the potential to treat the prevalent wet urban biowaste in low- and middle-income countries. The generated hydrochar solids are a hygienic, homogenized, carbon rich and energy dense product with economic value that can be used as an alternative to wood-based charcoal or fossil fuel. Obtaining a satisfactory energy efficiency of the process is, however, one of the prerequisites for the possible breakthrough of this technology. In an experimental HTC reactor, a model kitchen/market waste feedstock (17.8 MJ/kgdb) was hydrothermally carbonized with varying loading rates (TS 20 and 25%) under mild operational conditions with peak temperatures of 160-190°C and process times of 2-10 h above 160°C. The aim was to evaluate the energy ratio of the process under these conditions while examining the impact on the hydrochar quality. Results show that the chemical properties of the produced hydrochar and its heating value were of moderate quality (21.1-24.4 MJ/kgdb), showing similar characteristics like torrefied products. HTC of a 25% TS-load during 2 h at 180 °C and maximum pressure of 18.3 bar resulted in a char chemical output energy that is twice as high as the electrical energy consumed in the process. If considering the theoretical methane potential of the process water, the energy ratio could be increased to 2.6; while reactor insulation could further enhance this ratio to 3. This article reveals the merits of mild HTC and provides relevant knowledge for attaining an optimized, energy efficient HTC system.
URI: https://digitalcollection.zhaw.ch/handle/11475/12368
Volltext Version: Publizierte Version
Lizenz (gemäss Verlagsvertrag): Lizenz gemäss Verlagsvertrag
Departement: Life Sciences und Facility Management
Organisationseinheit: Institut für Chemie und Biotechnologie (ICBT)
Enthalten in den Sammlungen:Publikationen Life Sciences und Facility Management

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Lohri, C., Zabaleta, I., Rohr, M., Baier, U., & Zurbrügg, C. (2016). Improving the energy-related aspects of biowaste treatment in an experimental hydrothermal carbonization reactor. Waste and Biomass Valorization, 9(3), 429–442. https://doi.org/10.1007/s12649-016-9746-3
Lohri, C. et al. (2016) ‘Improving the energy-related aspects of biowaste treatment in an experimental hydrothermal carbonization reactor’, Waste and Biomass Valorization, 9(3), pp. 429–442. Available at: https://doi.org/10.1007/s12649-016-9746-3.
C. Lohri, I. Zabaleta, M. Rohr, U. Baier, and C. Zurbrügg, “Improving the energy-related aspects of biowaste treatment in an experimental hydrothermal carbonization reactor,” Waste and Biomass Valorization, vol. 9, no. 3, pp. 429–442, 2016, doi: 10.1007/s12649-016-9746-3.
LOHRI, Christian, Imanol ZABALETA, Manuel ROHR, Urs BAIER und Christian ZURBRÜGG, 2016. Improving the energy-related aspects of biowaste treatment in an experimental hydrothermal carbonization reactor. Waste and Biomass Valorization. 2016. Bd. 9, Nr. 3, S. 429–442. DOI 10.1007/s12649-016-9746-3
Lohri, Christian, Imanol Zabaleta, Manuel Rohr, Urs Baier, and Christian Zurbrügg. 2016. “Improving the Energy-Related Aspects of Biowaste Treatment in an Experimental Hydrothermal Carbonization Reactor.” Waste and Biomass Valorization 9 (3): 429–42. https://doi.org/10.1007/s12649-016-9746-3.
Lohri, Christian, et al. “Improving the Energy-Related Aspects of Biowaste Treatment in an Experimental Hydrothermal Carbonization Reactor.” Waste and Biomass Valorization, vol. 9, no. 3, 2016, pp. 429–42, https://doi.org/10.1007/s12649-016-9746-3.


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