Comprehensive characterization of Napier grass as a feedstock for thermochemical conversion

Isah Y. Mohammed, Yousif A. Abakr*, Feroz K. Kazi, Suzana Yusup, Ibraheem Alshareef, Soh A. Chin

*Corresponding author for this work

Research output: Contribution to journalSpecial issue

Abstract

Study on Napier grass leaf (NGL), stem (NGS) and leaf and stem (NGT) was carried out. Proximate, ultimate and structural analyses were evaluated. Functional groups and crystalline components in the biomass were examined. Pyrolysis study was conducted in a thermogravimetric analyzer under nitrogen atmosphere of 20 mL/min at constant heating rate of 10 K/min. The results reveal that Napier grass biomass has high volatile matter, higher heating value, high carbon content and lower ash, nitrogen and sulfur contents. Structural analysis shows that the biomass has considerable cellulose and lignin contents which are good candidates for good quality bio-oil production. From the pyrolysis study, degradation of extractives, hemicellulose, cellulose and lignin occurred at temperature around 478, 543, 600 and above 600 K, respectively. Kinetics of the process was evaluated using reaction order model. New equations that described the process were developed using the kinetic parameters and data compared with experimental data. The results of the models fit well to the experimental data. The proposed models may be a reliable means for describing thermal decomposition of lignocellulosic biomass under nitrogen atmosphere at constant heating rate.

Original languageEnglish
Pages (from-to)3403-3417
Number of pages15
JournalEnergies
Volume8
Issue number5
DOIs
Publication statusPublished - Dec 2015

Fingerprint

Biomass
Feedstocks
Nitrogen
Heating
Pyrolysis
Cellulose
Lignin
Heating rate
Atmosphere
Leaves
Kinetics
Experimental Data
Volatiles
Structural Analysis
Kinetic parameters
Structural analysis
Functional groups
Coal ash
Carbon
Degradation

Bibliographical note

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Funding: Crops for the Future (CFF) and University of Nottingham under the grant BioP1-005

Keywords

  • characterization
  • DTG
  • FTIR
  • Napier grass
  • proximate and ultimate analysis
  • TGA
  • XRD

Cite this

Mohammed, I. Y., Abakr, Y. A., K. Kazi, F., Yusup, S., Alshareef, I., & Chin, S. A. (2015). Comprehensive characterization of Napier grass as a feedstock for thermochemical conversion. Energies, 8(5), 3403-3417. https://doi.org/10.3390/en8053403
Mohammed, Isah Y. ; Abakr, Yousif A. ; K. Kazi, Feroz ; Yusup, Suzana ; Alshareef, Ibraheem ; Chin, Soh A. / Comprehensive characterization of Napier grass as a feedstock for thermochemical conversion. In: Energies. 2015 ; Vol. 8, No. 5. pp. 3403-3417.
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Mohammed, IY, Abakr, YA, K. Kazi, F, Yusup, S, Alshareef, I & Chin, SA 2015, 'Comprehensive characterization of Napier grass as a feedstock for thermochemical conversion', Energies, vol. 8, no. 5, pp. 3403-3417. https://doi.org/10.3390/en8053403

Comprehensive characterization of Napier grass as a feedstock for thermochemical conversion. / Mohammed, Isah Y.; Abakr, Yousif A.; K. Kazi, Feroz; Yusup, Suzana; Alshareef, Ibraheem; Chin, Soh A.

In: Energies, Vol. 8, No. 5, 12.2015, p. 3403-3417.

Research output: Contribution to journalSpecial issue

TY - JOUR

T1 - Comprehensive characterization of Napier grass as a feedstock for thermochemical conversion

AU - Mohammed, Isah Y.

AU - Abakr, Yousif A.

AU - K. Kazi, Feroz

AU - Yusup, Suzana

AU - Alshareef, Ibraheem

AU - Chin, Soh A.

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PY - 2015/12

Y1 - 2015/12

N2 - Study on Napier grass leaf (NGL), stem (NGS) and leaf and stem (NGT) was carried out. Proximate, ultimate and structural analyses were evaluated. Functional groups and crystalline components in the biomass were examined. Pyrolysis study was conducted in a thermogravimetric analyzer under nitrogen atmosphere of 20 mL/min at constant heating rate of 10 K/min. The results reveal that Napier grass biomass has high volatile matter, higher heating value, high carbon content and lower ash, nitrogen and sulfur contents. Structural analysis shows that the biomass has considerable cellulose and lignin contents which are good candidates for good quality bio-oil production. From the pyrolysis study, degradation of extractives, hemicellulose, cellulose and lignin occurred at temperature around 478, 543, 600 and above 600 K, respectively. Kinetics of the process was evaluated using reaction order model. New equations that described the process were developed using the kinetic parameters and data compared with experimental data. The results of the models fit well to the experimental data. The proposed models may be a reliable means for describing thermal decomposition of lignocellulosic biomass under nitrogen atmosphere at constant heating rate.

AB - Study on Napier grass leaf (NGL), stem (NGS) and leaf and stem (NGT) was carried out. Proximate, ultimate and structural analyses were evaluated. Functional groups and crystalline components in the biomass were examined. Pyrolysis study was conducted in a thermogravimetric analyzer under nitrogen atmosphere of 20 mL/min at constant heating rate of 10 K/min. The results reveal that Napier grass biomass has high volatile matter, higher heating value, high carbon content and lower ash, nitrogen and sulfur contents. Structural analysis shows that the biomass has considerable cellulose and lignin contents which are good candidates for good quality bio-oil production. From the pyrolysis study, degradation of extractives, hemicellulose, cellulose and lignin occurred at temperature around 478, 543, 600 and above 600 K, respectively. Kinetics of the process was evaluated using reaction order model. New equations that described the process were developed using the kinetic parameters and data compared with experimental data. The results of the models fit well to the experimental data. The proposed models may be a reliable means for describing thermal decomposition of lignocellulosic biomass under nitrogen atmosphere at constant heating rate.

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Mohammed IY, Abakr YA, K. Kazi F, Yusup S, Alshareef I, Chin SA. Comprehensive characterization of Napier grass as a feedstock for thermochemical conversion. Energies. 2015 Dec;8(5):3403-3417. https://doi.org/10.3390/en8053403