Biogas production from lignocelluloses by N-methylmorpholine-N-oxide (NMMO) pretreatment: Effects of recovery and reuse of NMMO
Journal article, 2014
The effects of N-methylmorpholine-N-oxide (NMMO) pretreatment on barley straw and forest residues were investigated for biogas production. The pretreatments were performed at 90 degrees C with 85% NMMO for 3-30 h. The best pretreatment conditions resulted in 100% improvement in methane yield during the subsequent digestion compared to that of the untreated lignocelluloses. Methane yields of 0.23 and 0.15 Nm(3) CH4/kg VS were obtained from barley straw and forest residues, respectively, corresponding to 88% and 83% of the theoretical yields. In addition, the effects of the pretreatment with recovered and reused NMMO was also studied over the course of five cycles. Pretreatment with recycled NMMO showed the same performance as the fresh NMMO on barley straw. However, pretreatment of forest residues with recycled NMMO resulted in 55% reduction in methane yield.
AGRICULTURAL ENGINEERING
ETHANOL
Anaerobic digestion
Fuels
FIBERS
TOXICITY
RICE
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Pretreatment
Energy &
ANAEROBIC-DIGESTION
FOREST RESIDUES
TRITICALE STRAW
Agricultural Engineering
N-methylmorpholine-N-oxide (NMMO)
Lignocellulose
Biotechnology & Applied Microbiology
CELLULOSE
WASTE
ENERGY & FUELS
Biogas
Author
M. M. Kabir
Hogskolan i Boras
Claes Niklasson
Chalmers, Chemical and Biological Engineering, Chemical Reaction Engineering
Mohammad Taherzadeh Esfahani
Hogskolan i Boras
I. S. Horvath
Hogskolan i Boras
Bioresource Technology
0960-8524 (ISSN)
Vol. 161 446-450Subject Categories (SSIF 2011)
Chemical Engineering
DOI
10.1016/j.biortech.2014.03.107