TY - JOUR
T1 - Esterification of Oleic Acid to Produce Biodiesel over 12-Tungstophosphoric Acid Anchored Two-dimensional Zeolite
AU - Pang, Hao
AU - Yang, Guoju
AU - Li, Lin
AU - Yu, Jihong
N1 - Publisher Copyright:
© 2021, Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH.
PY - 2021/10
Y1 - 2021/10
N2 - Biodiesel has emerged as a non-toxic, biodegradable, and renewable fuel substitute that can be readily produced via the esterification reaction of free fatty acids. The present work explores the potential of 12-tungstophosphoric acid(TPA) anchored two-dimensional(2D) ITQ-2 zeolite(TPA/ITQ-2) as heterogeneous acid catalysts for biodiesel production. TPA/ITQ-2 material was prepared by swelling, delamination, and subsequent wetness incipient impregnation approach. The prepared catalysts were comprehensively characterized by powder X-ray diffraction, N2 adsorption/desorption, temperature-programmed desorption of ammonia, flourier transform infrared spectroscopy, and transmission electron microscopy. The catalytic activity of TPA/ITQ-2 for biodiesel production was evaluated by the esterification reaction of oleate acid with methanol. Process parameters, such as reactant molar ratio and TPA loading were optimized. Due to the superior mass transfer and adequate stable acid sites, 2D TPA/ITQ-2 showed a higher catalytic activity and a better recyclable stability than the 3D and layered TPA/zeolites. This work will provide new opportunities for the design of 2D zeolite-based acid catalysts for biodiesel production.
AB - Biodiesel has emerged as a non-toxic, biodegradable, and renewable fuel substitute that can be readily produced via the esterification reaction of free fatty acids. The present work explores the potential of 12-tungstophosphoric acid(TPA) anchored two-dimensional(2D) ITQ-2 zeolite(TPA/ITQ-2) as heterogeneous acid catalysts for biodiesel production. TPA/ITQ-2 material was prepared by swelling, delamination, and subsequent wetness incipient impregnation approach. The prepared catalysts were comprehensively characterized by powder X-ray diffraction, N2 adsorption/desorption, temperature-programmed desorption of ammonia, flourier transform infrared spectroscopy, and transmission electron microscopy. The catalytic activity of TPA/ITQ-2 for biodiesel production was evaluated by the esterification reaction of oleate acid with methanol. Process parameters, such as reactant molar ratio and TPA loading were optimized. Due to the superior mass transfer and adequate stable acid sites, 2D TPA/ITQ-2 showed a higher catalytic activity and a better recyclable stability than the 3D and layered TPA/zeolites. This work will provide new opportunities for the design of 2D zeolite-based acid catalysts for biodiesel production.
KW - Biodiesel
KW - Esterification
KW - Two-dimension
KW - Zeolite
UR - http://www.scopus.com/inward/record.url?scp=85106762854&partnerID=8YFLogxK
U2 - 10.1007/s40242-021-1152-0
DO - 10.1007/s40242-021-1152-0
M3 - Article
AN - SCOPUS:85106762854
SN - 1005-9040
VL - 37
SP - 1072
EP - 1078
JO - Chemical Research in Chinese Universities
JF - Chemical Research in Chinese Universities
IS - 5
ER -
