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  4. Effects of vapothermal pretreatment on anaerobic degradability of common reed
 
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Effects of vapothermal pretreatment on anaerobic degradability of common reed

Citation Link: https://doi.org/10.15480/882.3696
Publikationstyp
Journal Article
Date Issued
2021-04-09
Sprache
English
Author(s)
Scherzinger, Marvin  
Kaltschmitt, Martin  
Thoma, Mario  
Institut
Umwelttechnik und Energiewirtschaft V-9  
TORE-DOI
10.15480/882.3696
TORE-URI
http://hdl.handle.net/11420/9992
Journal
Energy technology  
Volume
9
Issue
7
Article Number
2001046
Citation
Energy Technology 9 (7): 2001046 (2021-07)
Publisher DOI
10.1002/ente.202001046
Scopus ID
2-s2.0-85104328014
Publisher
Wiley-VCH
Residual materials from currently unused plant matter are available locally in abundance and serve as a valuable substrate for biogas production via anaerobic digestion. However, in most cases, a pretreatment is necessary to overcome their recalcitrant behavior. Against this background, earlier ground biomass from Phragmites australis, better known as common reed, is pretreated in a vapothermal atmosphere at temperatures between 122 and 178 °C and residence times between 18 and 102 min. Herein, the influence of such a pretreatment on the specific biogas and methane yield is aimed to be evaluated. In addition, the main causes for changes in degradability are identified by means of accompanying analytics. It is found that vapothermal pretreatment is able to significantly enhance degradation velocity during anaerobic digestion. However, under severe conditions, the biogas and methane yields decrease, which is traced back to an increase in cellulose crystallinity, inaccessibility of pores due to precipitated reaction products, as well as the formation of inhibiting substances and proportional increase in nondegradable lignin.
Subjects
anaerobic digestion
biogas
common reeds
vapothermal pretreatments
DDC Class
600: Technik
Funding(s)
Projekt DEAL  
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by-nc-nd/4.0/
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