TY - JOUR
T1 - Vapour-phase hydrogenolysis of glycerol to 1,3-propanediol over supported Pt catalysts
T2 - the effect of supports on the catalytic functionalities
AU - Shanthi Priya, Samudrala
AU - Kumar, Vanama Pavan
AU - Lakshmi Kantam, Mannepalli
AU - Bhargava, Suresh K.
AU - Chary, Komandur V. R.
PY - 2014/12
Y1 - 2014/12
N2 - Platinum catalysts with 2 % (w/w) Pt supported on ZrO2, Sulfated ZrO2, γ-Al2O3, AlPO4, activated carbon and Y-Zeolite have been investigated for the selective vapour phase hydrogenolysis of biomass derived glycerol to 1,3-propanediol at moderate reaction temperature and atmospheric pressure. All the catalysts were synthesized by the wet impregnation method using chloroplatinic acid precursor. The physico-chemical properties of the catalysts were investigated by XRD, FTIR, SEM, CO-chemisorption, TPR, TEM, NH3-TPD and Pyridine adsorbed FTIR spectroscopy. The catalytic experimental results combined with the characterization studies showed that the glycerol conversion and the yield of 1,3-propanediol greatly depend on the nature of the support. The results also suggest that a correlation exists between catalytic activity and acidity. A key parameter to assess the best catalyst performance is the dispersion of Pt on the support and the metal-support interaction. Among various supported Pt catalysts screened for vapour phase glycerol hydrogenolysis, the Pt/AlPO4 catalyst exhibited the best activity towards glycerol conversion (100 %) and 1,3-propanediol selectivity (35.4 %). Graphical Abstract: [Figure not available: see fulltext.].
AB - Platinum catalysts with 2 % (w/w) Pt supported on ZrO2, Sulfated ZrO2, γ-Al2O3, AlPO4, activated carbon and Y-Zeolite have been investigated for the selective vapour phase hydrogenolysis of biomass derived glycerol to 1,3-propanediol at moderate reaction temperature and atmospheric pressure. All the catalysts were synthesized by the wet impregnation method using chloroplatinic acid precursor. The physico-chemical properties of the catalysts were investigated by XRD, FTIR, SEM, CO-chemisorption, TPR, TEM, NH3-TPD and Pyridine adsorbed FTIR spectroscopy. The catalytic experimental results combined with the characterization studies showed that the glycerol conversion and the yield of 1,3-propanediol greatly depend on the nature of the support. The results also suggest that a correlation exists between catalytic activity and acidity. A key parameter to assess the best catalyst performance is the dispersion of Pt on the support and the metal-support interaction. Among various supported Pt catalysts screened for vapour phase glycerol hydrogenolysis, the Pt/AlPO4 catalyst exhibited the best activity towards glycerol conversion (100 %) and 1,3-propanediol selectivity (35.4 %). Graphical Abstract: [Figure not available: see fulltext.].
KW - 1,3-Propanediol
KW - Glycerol
KW - Hydrogenolysis
KW - Platinum
UR - http://www.scopus.com/inward/record.url?scp=84925461109&partnerID=8YFLogxK
U2 - 10.1007/s10562-014-1395-1
DO - 10.1007/s10562-014-1395-1
M3 - Article
AN - SCOPUS:84925461109
SN - 1011-372X
VL - 144
SP - 2129
EP - 2143
JO - Catalysis Letters
JF - Catalysis Letters
IS - 12
ER -