Abstract：
:As a highly available waste product, rice hulls could be a starting block in replacing liquid fossil fuels. However, their silica covering can make further use difficult. This preliminary study investigates effects of dissolving rice hulls in the ionic liquids 1-ethyl-3-methylimidazolium acetate (EMIM Ac), 1-hexyl-3-methylimidazolium chloride, (HMIM Cl), and 1-allyl-3-methylimidazolium chloride (AMIM Cl), and what lignocellulosic components can be precipitated from the used ionic liquid with water and ethanol. EMIM Ac dissolution at 110 °C for 8 h was found to completely remove lignin from rice hulls, while ethanol was capable of precipitating lignin out of the used EMIM Ac. With 8h dissolution at 110 °C using HMIM Cl, approximately 20% of the cellulose in the rice hull sample can be precipitated out using water as co-solvent, while more than 60% of the hemicellulose can be precipitated with ethanol.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Lynam JG,Reza MT,Vasquez VR,Coronella CJdoi
10.1016/j.biortech.2012.03.004subject
Has Abstractpub_date
2012-06-01 00:00:00pages
629-36eissn
0960-8524issn
1873-2976pii
S0960-8524(12)00415-4journal_volume
114pub_type
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