TY - JOUR
T1 - Highly selective hydropyrolysis of lignin waste to benzene, toluene and xylene in presence of zirconia supported iron catalyst
AU - Lonchay, William
AU - Bagnato, Giuseppe
AU - Sanna, Aimaro
N1 - Funding Information:
This work was supported by Innovate UK/KTN (KTP project no. 10013135). We kindly acknowledge Joe Perkins-Hall and Karen Sam, CDS-Analytical for Py-GC support and Aaron Naden, Department of Chemistry, University of St. Andrews for TEM-EDX analysis.
Funding Information:
This work was supported by Innovate UK/KTN (KTP project no. 10013135). We kindly acknowledge Joe Perkins-Hall and Karen Sam, CDS-Analytical for Py-GC support and Aaron Naden, Department of Chemistry, University of St. Andrews for TEM-EDX analysis.
Publisher Copyright:
© 2022 The Author(s)
PY - 2022/10
Y1 - 2022/10
N2 - The use of lignin to produce Benzene, Toluene and Xylene (BTX) is a promising pathway to strength the economic case, over the production of advanced bio-fuels alone. In this work, Ce, Na, Pd and Fe supported on zirconium oxide were evaluated for the ex-situ hydropyrolysis (HyPy)/hydrodeoxygenation (HDO) of Etek lignin under mild conditions (600 °C, 1 atmosphere) towards the production of BTX. Fe/ZrO2 was able to selectively produce BTX (67 area%) and cycloalkenes (13.5 area%) and strongly deoxygenate the HyPy oil to about 5 wt% oxygen content, resulting in an oil with a carbon distribution of 85.5 % in C5-C10 hydrocarbons. The high selectivity of Fe/ZrO2 was related to the iron oxophilicity, the strong reduction potential of zero-valent iron, the good dispersion of Fe nanoparticles on the support and the presence of mesopores and acid sites, which enhanced the interactions between the reacting species and the catalyst surface.
AB - The use of lignin to produce Benzene, Toluene and Xylene (BTX) is a promising pathway to strength the economic case, over the production of advanced bio-fuels alone. In this work, Ce, Na, Pd and Fe supported on zirconium oxide were evaluated for the ex-situ hydropyrolysis (HyPy)/hydrodeoxygenation (HDO) of Etek lignin under mild conditions (600 °C, 1 atmosphere) towards the production of BTX. Fe/ZrO2 was able to selectively produce BTX (67 area%) and cycloalkenes (13.5 area%) and strongly deoxygenate the HyPy oil to about 5 wt% oxygen content, resulting in an oil with a carbon distribution of 85.5 % in C5-C10 hydrocarbons. The high selectivity of Fe/ZrO2 was related to the iron oxophilicity, the strong reduction potential of zero-valent iron, the good dispersion of Fe nanoparticles on the support and the presence of mesopores and acid sites, which enhanced the interactions between the reacting species and the catalyst surface.
KW - Aromatics
KW - Bio-oil
KW - Hydrodeoxygenation
KW - Hydropyrolysis
KW - Iron catalyst
KW - Lignin
UR - http://www.scopus.com/inward/record.url?scp=85135942106&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2022.127727
DO - 10.1016/j.biortech.2022.127727
M3 - Article
C2 - 35944864
SN - 0960-8524
VL - 361
JO - Bioresource Technology
JF - Bioresource Technology
M1 - 127727
ER -