Background: Eichhornia crassipes is an aquatic plant well known for its role in soil
reclamation due to the containment of valuable nutrients. Moreover, its biomass is an abundant and
low-cost biological resource. Pyrolysis of a biomass offers one of the cleanest methods to harness
the bioenergy stored in the biomass.
Objective: The present study was focused on evaluating the bioenergy potential of Eichhornia crassipes
Methods: Biomass of E. crassipes was collected from a municipal wastewater pond. Oven dried
powdered biomass of E. crassipes was subjected to pyrolysis at three heating rates including 10, 30
and 50 °C min-1 in a simultaneous Thermogravimetry–Differential Scanning Calorimetry analyzer
under an inert environment containing nitrogen. Data obtained were subjected to isoconversional
models of Kissenger-Akahira-Sunose (KSA) and Flynn–Wall–Ozawa (FWO) to understand the
Results: Kinetic parameters have shown that the pyrolysis followed first-order reaction kinetics.
The average values of activation energies (129.71-133.03 kJ mol-1) and thermodynamic parameters
including high heating values (18.12 MJ kg-1), Gibb's free energies (171-180 kJ mol-1) and enthalpy
of reaction (124-127 kJ mol-1) have shown the remarkable bioenergy potential of this biomass.
Conclusion: This low-cost biomass may be used to produce liquids, gases, and biochar in a costefficient
and environmentally friendly way via pyrolysis or co-pyrolysis in the future.