Pretreatment of oil palm empty fruit bunch (OPEFB) by N-methylmorpholine-N-oxide (NMMO) for biogas production: Structural changes and digestion improvement
| Autor: | Adhitya Pitara Sanjaya, Mohammad J. Taherzadeh, Fiametta Ayu Purwandari, Muhammad Nur Cahyanto, Claes Niklasson, Ria Millati, Ilona Sárvári Horváth |
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| Rok vydání: | 2013 |
| Předmět: |
Environmental Engineering
Waste management Renewable Energy Sustainability and the Environment Morpholines N-Methylmorpholine N-oxide Bioengineering General Medicine Arecaceae Cyclic N-Oxides Bacteria Anaerobic chemistry.chemical_compound Hydrolysis Biodegradation Environmental chemistry Biogas Bioenergy Fruit Lyocell Cellulose Methane Waste Management and Disposal Dissolution Nuclear chemistry Resource recovery |
| Zdroj: | Bioresource Technology. 128:461-466 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2012.10.088 |
| Popis: | 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 degrees 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 degrees C. It resulted in 0.408 Nm(3)/kg VS methane yield and 0.032 Nm(3) CH4/kg VS/day initial methane production rate, which correspond in improving by 48% and 167% compared to the untreated OPEFB, respectively. |
| Databáze: | OpenAIRE |
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