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Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw

Steinbach, David; Wüst, Dominik; Zielonka, Simon; Krümpel, Johannes; Munder, Simon; Pagel, Matthias; Kruse, Andrea

Abstract (englisch):
Straws are agricultural residues that can be used to produce biomethane by anaerobic digestion. The methane yield of rice straw is lower than other straws. Steam explosion was investigated as a pretreatment to increase methane production. Pretreatment conditions with varying reaction times (12–30 min) and maximum temperatures (162–240 °C) were applied. The pretreated material was characterized for its composition and thermal and morphological properties. When the steam explosion was performed with a moderate severity parameter of S0 = 4.1 min, the methane yield was increased by 32% compared to untreated rice straw. This study shows that a harsher pretreatment at S0 > 4.3 min causes a drastic reduction of methane yield because inert condensation products are formed from hemicelluloses

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Verlagsausgabe §
DOI: 10.5445/IR/1000098729
Veröffentlicht am 08.10.2019
Originalveröffentlichung
DOI: 10.3390/molecules24193492
Coverbild
Zugehörige Institution(en) am KIT Institut für Katalyseforschung und -Technologie (IKFT)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 1420-3049
KITopen-ID: 1000098729
HGF-Programm 35.13.02 (POF III, LK 01)
Erschienen in Molecules
Band 24
Heft 19
Seiten Article: 3492
Vorab online veröffentlicht am 26.09.2019
Schlagworte steam treatment; pretreatment; lignocellulose; anaerobic digestion; biochemical methane potential; biomethane
Nachgewiesen in Scopus
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