Thermodynamics and Kinetics Parameters of Eichhornia crassipes Biomass for Bioenergy.
Protein Pept Lett
; 25(2): 187-194, 2018.
Article
en En
| MEDLINE
| ID: mdl-29359651
ABSTRACT
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 via pyrolysis.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 reaction chemistry.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.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fuentes de Energía Bioeléctrica
/
Eichhornia
/
Biocombustibles
Idioma:
En
Revista:
Protein Pept Lett
Asunto de la revista:
BIOQUIMICA
Año:
2018
Tipo del documento:
Article
País de afiliación:
Pakistán