TY - JOUR
T1 - Sulfonic acid functionalized deoxycellulose catalysts for glycerol acetylation to fuel additives
AU - Kim, Inbae
AU - Kim, Jaesung
AU - Lee, Doohwan
PY - 2014/7/22
Y1 - 2014/7/22
N2 - Various forms of sulfonic acid (SO3H) functionalized cellulose-based heterogeneous catalysts were prepared, and their properties on glycerol acetylation reactions to mono-, di-, and triacetin products were investigated. Superior catalytic activity and stability for the reactions was observed on SO3H-NDOC catalyst that is obtained by (i) crosslinking of the cellulose units with epichlorohydrin into a three-dimensionally-networked deoxycellulose-matrix and (ii) sulfonic acid functionalization on the crosslinked deoxycellulose support via CS atomic linkages (CSO3H). It was found that sulfonic acid functionalization via an ether type OS atomic linkage (COSO3H) or the direct utilization of the pristine cellulose support without a fortification by crosslinking led to significant deactivation of the catalysts by substantial acidity loss. The intrinsic glycerol conversion turnover rate on SO3H-NDOC was comparable to that of commercial Amberlyst-15 solid resin, demonstrating the effectiveness of this renewable cellulose-derived heterogeneous catalyst for glycerol acetylation to fuel additives.
AB - Various forms of sulfonic acid (SO3H) functionalized cellulose-based heterogeneous catalysts were prepared, and their properties on glycerol acetylation reactions to mono-, di-, and triacetin products were investigated. Superior catalytic activity and stability for the reactions was observed on SO3H-NDOC catalyst that is obtained by (i) crosslinking of the cellulose units with epichlorohydrin into a three-dimensionally-networked deoxycellulose-matrix and (ii) sulfonic acid functionalization on the crosslinked deoxycellulose support via CS atomic linkages (CSO3H). It was found that sulfonic acid functionalization via an ether type OS atomic linkage (COSO3H) or the direct utilization of the pristine cellulose support without a fortification by crosslinking led to significant deactivation of the catalysts by substantial acidity loss. The intrinsic glycerol conversion turnover rate on SO3H-NDOC was comparable to that of commercial Amberlyst-15 solid resin, demonstrating the effectiveness of this renewable cellulose-derived heterogeneous catalyst for glycerol acetylation to fuel additives.
KW - Cellulose
KW - Glycerol acetylation
KW - Heterogeneous catalyst
KW - Renewable energy
KW - Sulfonic acid functionalization
UR - http://www.scopus.com/inward/record.url?scp=84902169816&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2014.05.018
DO - 10.1016/j.apcata.2014.05.018
M3 - Article
AN - SCOPUS:84902169816
SN - 0926-860X
VL - 482
SP - 31
EP - 37
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
ER -
