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Title: Pretreatment of oil palm empty fruit bunch (OPEFB) by N-methylmorpholine-N-oxide (NMMO) for biogas production: Structural changes and digestion improvement
Authors: Purwandari, F. A.
Sanjaya, A. P.
Millati, R.
Cahyanto, M.N.
Sárvári Horváth, Ilona
Niklasson, C.
Taherzadeh, M.J.
Department: University of Borås. School of Engineering
Other
Issue Date: 2013
Journal Title: Bioresource Technology
ISSN: 0960-8524
Volume: 128
Issue: 1
Pages: 461-466
Publisher: Elsevier
Media type: text
Publication type: article, peer reviewed scientific
Subject Category: Subject categories::Engineering and Technology::Industrial Biotechnology
Research Group: Biotechnology
Area of Research: Resource Recovery
Strategic Research Area: Resource Recovery
Abstract: Pretreatment of OPEFB (oil palm empty fruit bunch) by NMMO (N-methylmorpholine-N-oxide) on its subsequent digestions was investigated. The pretreatments were carried out at 90 and 120 °C for 1, 3, and 5 h in three different modes of dissolution (by 85% NMMO solution), ballooning (79% NMMO solution), and swelling (73% NMMO solution). The total solid recovery after the pretreatment was 89–94%. The pretreatment process did not have a major impact on the composition of OPEFB, other than a reduction of ash from 5.4% up to 1.3%. The best improvement in biogas production was achieved by a dissolution mode pretreatment of OPEFB, using conditions of 85% NMMO, 3 h, and 120 °C. It resulted in 0.408 Nm3/kg VS methane yield and 0.032 Nm3 CH4/kg VS/day initial methane production rate, which correspond in improving by 48% and 167% compared to the untreated OPEFB, respectively.
DOI: 10.1016/j.biortech.2012.10.088
URI: http://hdl.handle.net/2320/11555
Sustainable development: sustainable development
Appears in Collections:Artiklar och rapporter / Articles and reports (IH)

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