Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw
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&#...
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MDPI AG
2019-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/24/19/3492 |
| _version_ | 1818180556497616896 |
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| author | David Steinbach Dominik Wüst Simon Zielonka Johannes Krümpel Simon Munder Matthias Pagel Andrea Kruse |
| author_facet | David Steinbach Dominik Wüst Simon Zielonka Johannes Krümpel Simon Munder Matthias Pagel Andrea Kruse |
| author_sort | David Steinbach |
| collection | DOAJ |
| description | 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 <i>S<sub>0</sub></i> = 4.1 min, the methane yield was increased by 32% compared to untreated rice straw. This study shows that a harsher pretreatment at <i>S<sub>0</sub></i> > 4.3 min causes a drastic reduction of methane yield because inert condensation products are formed from hemicelluloses. |
| first_indexed | 2024-12-11T21:21:39Z |
| format | Article |
| id | doaj.art-97b024ab087f44e7b4de6f4fda200472 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-11T21:21:39Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-97b024ab087f44e7b4de6f4fda2004722022-12-22T00:50:27ZengMDPI AGMolecules1420-30492019-09-012419349210.3390/molecules24193492molecules24193492Steam Explosion Conditions Highly Influence the Biogas Yield of Rice StrawDavid Steinbach0Dominik Wüst1Simon Zielonka2Johannes Krümpel3Simon Munder4Matthias Pagel5Andrea Kruse6Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, GermanyInstitute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, GermanyState Institute of Agricultural Engineering and Bioenergy, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, GermanyState Institute of Agricultural Engineering and Bioenergy, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, GermanyInstitute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, GermanyKarlsruhe Institute of Technology (KIT), Institute for Catalysis Research and Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyInstitute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, GermanyStraws 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 <i>S<sub>0</sub></i> = 4.1 min, the methane yield was increased by 32% compared to untreated rice straw. This study shows that a harsher pretreatment at <i>S<sub>0</sub></i> > 4.3 min causes a drastic reduction of methane yield because inert condensation products are formed from hemicelluloses.https://www.mdpi.com/1420-3049/24/19/3492steam treatmentpretreatmentlignocelluloseanaerobic digestionbiochemical methane potentialbiomethane |
| spellingShingle | David Steinbach Dominik Wüst Simon Zielonka Johannes Krümpel Simon Munder Matthias Pagel Andrea Kruse Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw Molecules steam treatment pretreatment lignocellulose anaerobic digestion biochemical methane potential biomethane |
| title | Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw |
| title_full | Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw |
| title_fullStr | Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw |
| title_full_unstemmed | Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw |
| title_short | Steam Explosion Conditions Highly Influence the Biogas Yield of Rice Straw |
| title_sort | steam explosion conditions highly influence the biogas yield of rice straw |
| topic | steam treatment pretreatment lignocellulose anaerobic digestion biochemical methane potential biomethane |
| url | https://www.mdpi.com/1420-3049/24/19/3492 |
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