TY - JOUR
T1 - An integrated process for the production of platform chemicals and diesel miscible fuels by acid-catalyzed hydrolysis and downstream upgrading of the acid hydrolysis residues with thermal and catalytic pyrolysis
AU - Girisuta, Buana
AU - Kalogiannis, Konstantinos G.
AU - Dussan, Karla
AU - Leahy, James J.
AU - Hayes, Michael H.B.
AU - Stefanidis, Stylianos D.
AU - Michailof, Chrysa M.
AU - Lappas, Angelos A.
PY - 2012/12/1
Y1 - 2012/12/1
N2 -
This study evaluates an integrated process for the production of platform chemicals and diesel miscible biofuels. An energy crop (Miscanthus) was treated hydrothermally to produce levulinic acid (LA). Temperatures ranging between 150 and 200 °C, sulfuric acid concentrations 1-5 wt.% and treatment times 1-12 h were applied to give different combined severity factors. Temperatures of 175 and 200 °C and acid concentration of 5 wt.% were found to be necessary to achieve good yield (17 wt.%) and selectivities of LA while treatment time did not have an effect. The acid hydrolysis residues were characterized for their elemental, cellulose, hemicellulose and lignin contents, and then tested in a small-scale pyrolyzer using silica sand and a commercial ZSM-5 catalyst. Milder pretreatment yielded more oil (43 wt.%) and oil O
2
(37%) while harsher pretreatment and catalysis led to more coke production (up to 58 wt.%), less oil (12 wt.%) and less oil O
2
(18 wt.%).
AB -
This study evaluates an integrated process for the production of platform chemicals and diesel miscible biofuels. An energy crop (Miscanthus) was treated hydrothermally to produce levulinic acid (LA). Temperatures ranging between 150 and 200 °C, sulfuric acid concentrations 1-5 wt.% and treatment times 1-12 h were applied to give different combined severity factors. Temperatures of 175 and 200 °C and acid concentration of 5 wt.% were found to be necessary to achieve good yield (17 wt.%) and selectivities of LA while treatment time did not have an effect. The acid hydrolysis residues were characterized for their elemental, cellulose, hemicellulose and lignin contents, and then tested in a small-scale pyrolyzer using silica sand and a commercial ZSM-5 catalyst. Milder pretreatment yielded more oil (43 wt.%) and oil O
2
(37%) while harsher pretreatment and catalysis led to more coke production (up to 58 wt.%), less oil (12 wt.%) and less oil O
2
(18 wt.%).
KW - Acid hydrolysis
KW - Bio-oil
KW - Catalytic pyrolysis
KW - Hydrolysis residues
KW - Levulinic acid
UR - http://www.scopus.com/inward/record.url?scp=84867307961&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0960852412013508?via%3Dihub
U2 - 10.1016/j.biortech.2012.09.013
DO - 10.1016/j.biortech.2012.09.013
M3 - Article
C2 - 23073094
AN - SCOPUS:84867307961
SN - 0960-8524
VL - 126
SP - 92
EP - 100
JO - Bioresource Technology
JF - Bioresource Technology
ER -