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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.
Sárvári Horváth, Ilona
|Department: ||University of Borås. School of Engineering|
|Issue Date: ||2013|
|Journal Title: ||Bioresource Technology|
|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.|
|Sustainable development: ||sustainable development|
|Appears in Collections:||Artiklar och rapporter / Articles and reports (IH)|
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