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
TRITICALE STRAW
Pretreatment
CELLULOSE
ANAEROBIC-DIGESTION
ENERGY & FUELS
RICE
Fuels
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Lignocellulose
TOXICITY
Agricultural Engineering
Biotechnology & Applied Microbiology
WASTE
Energy &
FIBERS
Biogas
ETHANOL
FOREST RESIDUES
Anaerobic digestion
N-methylmorpholine-N-oxide (NMMO)
Author
M. M. Kabir
University of Borås
Claes Niklasson
Chalmers, Chemical and Biological Engineering, Chemical Reaction Engineering
Mohammad Taherzadeh Esfahani
University of Borås
I. S. Horvath
University of Borås
Bioresource Technology
0960-8524 (ISSN) 1873-2976 (eISSN)
Vol. 161 446-450Subject Categories
Chemical Engineering
DOI
10.1016/j.biortech.2014.03.107