Thermal pre-treatment of cellulose rich biomass for biogas production
Anaerobic digestion is one possible method to produce bioenergy from cellulose rich materials but the process techniques still need refinements to facilitate the production process. In this work the biogas potential from six different plant materials was evaluated and what effect a thermal pre-treat...
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| Formato: | Otro |
| Lenguaje: | sueco Inglés |
| Publicado: |
2009
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| Acceso en línea: | https://stud.epsilon.slu.se/11805/ |
| _version_ | 1855571943056474112 |
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| author | Demetriades, Pauline |
| author_browse | Demetriades, Pauline |
| author_facet | Demetriades, Pauline |
| author_sort | Demetriades, Pauline |
| collection | Epsilon Archive for Student Projects |
| description | Anaerobic digestion is one possible method to produce bioenergy from cellulose rich materials but the process techniques still need refinements to facilitate the production process. In this work the biogas potential from six different plant materials was evaluated and what effect a thermal pre-treatment had on this potential.
The biogas production was determined in a batch experiment model with small biogas reactors. The tested substrates were oat straw, meadow grass, aspen, spruce and wet grain residue from two different ethanol production plants in Sweden, all of which were thermally pre-treated with one or two pre-treatment setups and compared in production with untreated materials. Results show that thermal pre-treatment does have an effect on the biogas production but that different materials need different thermal pre-treatment parameters.
The experiment also showed that the particle size of the plant material can have an equally large effect on the biogas production as the thermal pre-treatment. Smaller particles give rise to a higher methane production. Of the tested materials the untreated wet grain residue from spirits production showed both the highest degradation rate and total biogas production whereas the thermally pre-treated spruce had the lowest production. |
| format | Otro |
| id | RepoSLU11805 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish Inglés |
| publishDate | 2009 |
| publishDateSort | 2009 |
| record_format | eprints |
| spelling | RepoSLU118052017-10-17T06:38:52Z https://stud.epsilon.slu.se/11805/ Thermal pre-treatment of cellulose rich biomass for biogas production Demetriades, Pauline Dept. of Microbiology Energy resources management Anaerobic digestion is one possible method to produce bioenergy from cellulose rich materials but the process techniques still need refinements to facilitate the production process. In this work the biogas potential from six different plant materials was evaluated and what effect a thermal pre-treatment had on this potential. The biogas production was determined in a batch experiment model with small biogas reactors. The tested substrates were oat straw, meadow grass, aspen, spruce and wet grain residue from two different ethanol production plants in Sweden, all of which were thermally pre-treated with one or two pre-treatment setups and compared in production with untreated materials. Results show that thermal pre-treatment does have an effect on the biogas production but that different materials need different thermal pre-treatment parameters. The experiment also showed that the particle size of the plant material can have an equally large effect on the biogas production as the thermal pre-treatment. Smaller particles give rise to a higher methane production. Of the tested materials the untreated wet grain residue from spirits production showed both the highest degradation rate and total biogas production whereas the thermally pre-treated spruce had the lowest production. Rötning ett sätt att producera bioenergi från cellulosarika växtmaterial men rötningsteknikerna behöver fortfarande finjusteras för att underlätta nedbrytningsprocessen. I denna studie undersöks biogaspotentialen från sex olika växtmaterial och vilken effekt en termisk förbehandling har på denna potential. Biogasproduktionen bestämdes i batchförsök med småskaliga biogasreaktorer. Substraten i undersökningen var havrehalm, ängsgräs, asp, gran och drank från två etanolproduktionsindustrier i Sverige. En eller två termiska förbehandlingar testades för varje substrat och förbehandlat substrat jämfördes mot obehandlat. Resultaten visade att termisk förbehandling har en effekt på både biogasproduktionen och nedbrytningshastigheten men att olika material behöver olika termiska förbehandlingar. Undersökningen visade även att växtmaterialets partikelstorlek också spelar roll för biogasproduktion och nedbrytningshastighet. Av de undersökta substraten visade obehandlad drank från starksprittillverkning högst nedbrytningshastighet och total biogasproduktion medan gran hade de lägsta produktionsnivåerna. 2009-03-06 Other NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/11805/1/demetriades_p_171017.pdf Demetriades, Pauline, 2008. Thermal pre-treatment of cellulose rich biomass for biogas production. UNSPECIFIED, Uppsala. Uppsala: (NL, NJ) > Dept. of Microbiology <https://stud.epsilon.slu.se/view/divisions/4024.html> urn:nbn:se:slu:epsilon-s-7884 eng |
| spellingShingle | Dept. of Microbiology Energy resources management Demetriades, Pauline Thermal pre-treatment of cellulose rich biomass for biogas production |
| title | Thermal pre-treatment of cellulose rich biomass for biogas production |
| title_full | Thermal pre-treatment of cellulose rich biomass for biogas production |
| title_fullStr | Thermal pre-treatment of cellulose rich biomass for biogas production |
| title_full_unstemmed | Thermal pre-treatment of cellulose rich biomass for biogas production |
| title_short | Thermal pre-treatment of cellulose rich biomass for biogas production |
| title_sort | thermal pre-treatment of cellulose rich biomass for biogas production |
| topic | Dept. of Microbiology Energy resources management |
| url | https://stud.epsilon.slu.se/11805/ https://stud.epsilon.slu.se/11805/ |