Pre-treatment of straw and forest residue for biogas production; Recycling and Reuse of NMMO
Year: 2014
Type: article
Abstract: N-methylmorpholine-N-oxide has shown a positive effect for the pretreatment\nof lignocelluloses. Pretreatment by NMMO was developed to enhance the\ndigestibility of lignocellulosic biomass.\nBarely straw and forest residue were pretreated by N-methylmorpholine-Noxide\n(NMMO) prior to anaerobic digestion. The effectiveness of NMMOtreatment\non straw and forest residue was examined as well as the recycling and\nreuse of NMMO for the next pretreatment process. During the first experimental\nseries pretreatments were performed at 90 °C for 3h and 30h, followed by\ndigestion of the pretreated material for 41 days. Low methane yield was found in\nthese experiments due to high organic loading rate. In the second series the\nrecycling and reuse of NMMO was investigated on straw. The pretreatments\nwere carried out at 90 °C for 30 hr and the recycling and reuse were performed\nin three times. After treatments with fresh, as well as 1, 2, 3 times recycled\nNMMO methane yield of 0.45, 0.42, 0.38 and 0.4 Nm3/kg VS were obtained.
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W199188667