Biogas Production from Energy Crops and Agriculture Residues
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- Rolf Mosley
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1 Downloaded from orbit.dtu.dk on: Mar 05, 2019 Biogas Production from Energy Crops and Agriculture Residues Wang, Guangtao Publication date: 2010 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Wang, G. (2010). Biogas Production from Energy Crops and Agriculture Residues. Roskilde: Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi. Risø-PhD, No. 72(EN) General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. You may not further distribute the material or use it for any profit-making activity or commercial gain You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.
2 Biogas Production from Energy Crops and Agriculture Residues Risø-PhD-Report Guangtao Wang Risø-PhD-72(EN) December 2010
3 Author: Guangtao Wang Title: Biogas Production from Energy Crops and Agriculture Residues Division: Biosystems Division Risø-PhD-72(EN) December 2010 Submitted in partial fulfilment of the requirements for the Ph.D. degree at Risø National Laboratory for Sustainable Energy, Technical University of Denmark Supervisor: Jens Ejbye Schmidt Abstract (max char.): In this thesis, the feasibility of utilizing energy crops (willow and miscanthus) and agriculture residues (wheat straw and corn stalker) in an anaerobic digestion process for biogas production was evaluated. Potential energy crops and agriculture residues were screened according to their suitability for biogas production. Moreover, pretreatment of these biomasses by using wet explosion method was studied and the effect of the wet explosion process was evaluated based on the increase of (a) sugar release and (b) methane potential when comparing the pretreated biomass and raw biomass. Ensiling of perennial crops was tested as a storage method and pretreatment method for enhancement of the biodegradability of the crops. The efficiency of the silage process was evaluated based on (a) the amount of biomass loss during storage and (b) the effect of the silage on methane potential. Co-digestion of raw and wet explosion pretreated energy crops and agriculture residues with swine manure at various volatile solids (VS) ratio between crop and manure was carried out by batch tests and continuous experiments. The efficiency of the co-digestion experiment was evaluated based on (a) the methane potential in term of ml CH 4 produced per g of VS-added and (b) the amount of methane produced per m 3 of reactor volume. ISBN Contract no.: Group's own reg. no.: Sponsorship: Danish Strategy Research Council Cover : Pages: 89 Tables: References: Information Service Department Risø National Laboratory for Sustainable Energy Technical University of Denmark P.O.Box 49 DK-4000 Roskilde Denmark Telephone bibl@risoe.dtu.dk Fax
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91 Risø DTU is the National Laboratory for Sustainable Energy. Our research focuses on development of energy technologies and systems with minimal effect on climate, and contributes to innovation, education and policy. Risø has large experimental facilities and interdisciplinary research environments, and includes the national centre for nuclear technologies. Risø DTU National Laboratory for Sustainable Energy Technical University of Denmark Frederiksborgvej 399 PO Box 49 DK-4000 Roskilde Denmark Phone Fax