Résumé:
This research explores the potential of utilizing date palm waste, an abundant biomass resource
in Algeria, as a sustainable feedstock for gasification and methanol production. The study
begins by identifying the most prominent biomass resources in Algeria, emphasizing the
importance of agricultural residues for renewable energy applications. Among these, date palm
waste from the Biskra region was selected as a representative sample due to its significant
availability and high potential for valorisation.
The methodological approach combines experimental data from the literature with advanced
process simulation using Aspen Plus software. This comprehensive modelling framework
facilitates the analysis of key operating parameters, such as the steam-to-biomass ratio and
gasification temperature, to optimize the gasification process and subsequent methanol
synthesis. The model's reliability is confirmed through rigorous validation against experimental
results reported in prior studies.
Key findings from this study indicate that the optimal conditions for steam gasification of date
palm waste are achieved at a steam to biomass ratio of 0.9 and a gasification temperature of
800 °C. Under these conditions, the resulting syngas composition comprises 58.38% hydrogen
(H2) and 24.21% carbon monoxide (CO). Additionally, the study reveals that the ideal
conditions for methanol synthesis involve operating at a pressure of 50 bar and a temperature
of 220 ◦C, resulting in a methanol Production capacity of 368.98 kg/h.
This study underscores the potential of leveraging Algeria's biomass resources for sustainable
energy production, aligning with the goals of the “REFFECT AFRICA” project. By integrating
simulation-based optimization with practical applications, the findings contribute to advancing
renewable energy technologies and promoting sustainable development in the region.
