TY - JOUR
T1 - Highly dispersed NbOPO4/SBA-15 as a versatile acid catalyst upon production of renewable jet-fuel from bio-based furanics via hydroxyalkylation-alkylation (HAA) and hydrodeoxygenation (HDO) reactions
AU - Samikannu, Ajaikumar
AU - Konwar, Lakhya Jyoti
AU - Rajendran, Kishore
AU - Lee, Cheng Choo
AU - Shchukarev, Andrey
AU - Virtanen, Pasi
AU - Mikkola, Jyri Pekka
N1 - Funding Information:
The Bio4Energy programme, Kempe Foundations (Kempestiftelserna) and Wallenberg Wood Science Center (WWSC) are gratefully acknowledged. The authors acknowledge the facilities of Ume? Core Facility Electron Microscopy (UCEM-NMI), the technical assistance of Dr. Tobias Sparrman, Chemical Biological Centre (KBC), Ume? University and Dr. K. Srinivasan, Department of Chemistry, Thiruvalluvar University, Tamilnadu, India. This work is also a part of the Johan Gadolin Process Chemistry Centre at ?bo Akademi University.
Publisher Copyright:
© 2020 Elsevier B.V.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
Embargo24 Months
LicenceCC BY-NC-ND
begärt fil (ALG)
PY - 2020/9/5
Y1 - 2020/9/5
N2 - Herein, we report the synthesis of a highly active and mesoporous Brønsted acidic NbOPO4/SBA-15 catalyst. The prepared catalysts were thoroughly characterized by means of analytical techniques such as XRD, FT-IR, XPS, NH3-TPD, SEM-EDS, TEM, TGA, 31P-MAS-NMR and N2-physisorption. The H3PO4 free deposition method was found to be effective for preserving the structure of Silica based carrier. In terms of catalytic performance, these materials demonstrated high activity upon C-C coupling of 2-methyl furan with carbonyl compounds and outperforming bulk NbOPO4, Nb2O5/SBA-15 and traditional solid acid catalysts (Al-MCM-41, Si/Al and H-ZSM-5). The NbOPO4/SBA-15 catalysts were stable and maintained high activity upon reuse and continuous operation (∼65 h). Furthermore, the Pd loaded counterparts (Pd/NbOPO4/SBA-15 and Pd/Nb2O5/SBA-15) also functioned as bifunctional catalysts and exhibited excellent activity upon subsequent hydrodeoxygenation of C-C coupling products. Most importantly, in terms of jet-fuel range hydrocarbons selectivity, these catalysts outperformed monofunctional Pd/carbon and aluminosilicate based bifunctional catalysts.
AB - Herein, we report the synthesis of a highly active and mesoporous Brønsted acidic NbOPO4/SBA-15 catalyst. The prepared catalysts were thoroughly characterized by means of analytical techniques such as XRD, FT-IR, XPS, NH3-TPD, SEM-EDS, TEM, TGA, 31P-MAS-NMR and N2-physisorption. The H3PO4 free deposition method was found to be effective for preserving the structure of Silica based carrier. In terms of catalytic performance, these materials demonstrated high activity upon C-C coupling of 2-methyl furan with carbonyl compounds and outperforming bulk NbOPO4, Nb2O5/SBA-15 and traditional solid acid catalysts (Al-MCM-41, Si/Al and H-ZSM-5). The NbOPO4/SBA-15 catalysts were stable and maintained high activity upon reuse and continuous operation (∼65 h). Furthermore, the Pd loaded counterparts (Pd/NbOPO4/SBA-15 and Pd/Nb2O5/SBA-15) also functioned as bifunctional catalysts and exhibited excellent activity upon subsequent hydrodeoxygenation of C-C coupling products. Most importantly, in terms of jet-fuel range hydrocarbons selectivity, these catalysts outperformed monofunctional Pd/carbon and aluminosilicate based bifunctional catalysts.
KW - C-C coupling
KW - Hydrodeoxygenation
KW - Jet-Fuel
KW - Mesoporous NbOPO
KW - Supported solid acid catalysts
UR - http://www.scopus.com/inward/record.url?scp=85084203311&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2020.118987
DO - 10.1016/j.apcatb.2020.118987
M3 - Article
AN - SCOPUS:85084203311
SN - 0926-3373
VL - 272
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 118987
ER -