RT Journal Article
T1 Biocrude oil production upgrading by catalytic assisted hydrothermal liquefaction of underutilized non-edible seed biomass
A1 Moreira-Mendoza, C.A.
A1 Essounani-Mérida, Sofía
A1 Molina-Ramírez, Sergio
A1 Cortés-Reyes, Marina
A1 Herrera-Delgado, María Concepción
A1 Larrubia-Vargas, María Ángeles
A1 Alemany-Arrebola, Luis José
K1 Energía de biomasa - Producción
AB Thermal and catalytic aqueous hydrothermal liquefaction of Ricinus communis and Jatropha curcas L. seeds, after mechanical defatting, was conducted at 260 °C for 40 min under subcritical water conditions with a biomass-to-water ratio of 1:5 (expressed in wt.). For catalytic aqueous hydrothermal liquefaction, Ni-Pt/Al2O3 was used as heterogeneous catalyst besides a solution of glycerol as in situ hydrogen donor agent. It was noticed that the combination of heterogeneous catalytic aqueous phase glycerol reforming and hydrothermal liquefaction favours and increases the biocrude yield, without external H2 supply. Indeed, a maximum biocrude yield of 59 wt% was registered when Ricinus communis defatted seed was used as starting biomass, which represents an increase of 28 wt% compared to the yield obtained by the non-catalytic HTL process. The biocrudes analysis by GC/MS confirmed that approximately 60% were C16 and C18 hydrocarbon compounds, indicating that the catalyst linked with aqueous glycerol reforming has a marked effect on distribution and upgraded fuel-biocrude stability and quality respect to direct hydrothermal liquefaction (HTL-D). The bimetallic Ni-Pt/Al2O3 conformed catalyst (with a Ni: Pt = 100:1 expressed as an atomic ratio) was effective in the coupled reactions of aqueous reforming of glycerine as well as hydrodeoxygenation and hydrocracking. It upgrades the biocrude with a lower O/C ratio and a higher H/C ratio, which is directly reflected in the HHV of the biocrude that reaches the value of 37 MJ·kg− 1 and can be used as direct fuel. The heterogeneous catalytic process technology, by coupling the glycerol APR and the assisted hydrolysis-depolymerisation of wet-biomass in water subcritical conditions yield to a biomass-derived biocrude with liquid fuel quality.
PB Springer Nature
YR 2024
FD 2024-09-13
LK https://hdl.handle.net/10630/36575
UL https://hdl.handle.net/10630/36575
LA eng
NO Moreira-Mendoza, C.A., Essounani-Mérida, S., Molina-Ramírez, S. et al. Biocrude oil Production Upgrading by Catalytic Assisted Hydrothermal Liquefaction of Underutilized non-edible seed Biomass. Top Catal (2024). https://doi.org/10.1007/s11244-024-02004-9
NO Funding for open access charge: Universidad de Málaga / CBUA
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026