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Biogas production from energy crops and agriculture residues

Abstract

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 CH4 produced per g of VS-added and (b) the amount of methane  More>>
Authors:
Publication Date:
Dec 15, 2010
Product Type:
Technical Report
Report Number:
RISO-PhD-72(EN)
Resource Relation:
Other Information: Thesis or Dissertation; TH: Thesis (Ph.D.); ENMI-2004
Subject:
09 BIOMASS FUELS; METHANE; CROPS; WILLOWS; STRAW; WHEAT; GRAMINEAE; MAIZE; BIOGAS PROCESS; ANAEROBIC DIGESTION; WET OXIDATION PROCESSES; MANURES
OSTI ID:
1001402
Research Organizations:
Technical Univ. of Denmark, Risoe National Lab. for Sustainable Energy. Biosystems Div., Roskilde (Denmark)
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: Contract ENMI-2104-04-0002; ISBN 978-87-550-3867-7; TRN: DK1101004
Availability:
Also available at http://www.risoe.dtu.dk/rispubl/reports/ris-phd-72.pdf; OSTI as DE01001402
Submitting Site:
DK
Size:
90 pages
Announcement Date:
Jan 20, 2011

Citation Formats

Wang, G. Biogas production from energy crops and agriculture residues. Denmark: N. p., 2010. Web.
Wang, G. Biogas production from energy crops and agriculture residues. Denmark.
Wang, G. 2010. "Biogas production from energy crops and agriculture residues." Denmark.
@misc{etde_1001402,
title = {Biogas production from energy crops and agriculture residues}
author = {Wang, G}
abstractNote = {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 CH4 produced per g of VS-added and (b) the amount of methane produced per m3 of reactor volume. (Author)}
place = {Denmark}
year = {2010}
month = {Dec}
}