Enhanced biogas production from rice straw, triticale straw and softwood spruce by NMMO pretreatment

Anna Teghammar, Keikhosro Karimi, Ilona Sárvári Horváth, Mohammad J. Taherzadeh

Onderzoeksoutput: Articlepeer review

104 Citaten (Scopus)

Samenvatting

Softwood spruce (chips and milled), rice straw and triticale (a hybrid of rye and wheat) straw, were pretreated with N-methylmorpholine-N-oxide (NMMO or NMO) prior to anaerobic digestion to produce biogas. The pretreatments were performed at 130 °C for 1-15 h, and the digestions continued for six weeks. The digestions of untreated chips (10 mm) and milled (<1 mm) spruce, rice straw and triticale straw resulted in 11, 66, 22 and 30 Nml CH 4/g raw material. However, the pretreatments have improved these methane yields by 400-1200%. The best digestion results of the pretreated chips and milled spruce, rice straw and triticale straw were 125, 245, 157 and 203 Nml CH 4/g raw material (or 202, 395, 328 and 362 Nml CH 4/g carbohydrates) respectively, which correspond to 49, 95, 79 and 87% of the theoretical yield of 415 Nml CH 4/g carbohydrates. Although the experiments were carried out for six weeks, one and a half weeks was enough to digest the materials.

Originele taal-2English
Pagina's (van-tot)116-120
Aantal pagina's5
TijdschriftBiomass and Bioenergy
Volume36
DOI's
StatusPublished - jan 2012

Bibliografische nota

Funding Information:
This work was financially supported by the Swedish Excellence Centre Waste Refinery . We appreciate Dr. Ria Millati who collected the rice straw in Indonesia and sent it to us.

Vingerafdruk

Duik in de onderzoeksthema's van 'Enhanced biogas production from rice straw, triticale straw and softwood spruce by NMMO pretreatment'. Samen vormen ze een unieke vingerafdruk.

Citeer dit