Carbon dioxide-assisted Torrefaction of Maize Cobs by Thermogravimetry: Product Yield and Energy Recovery Potentials

Bemgba B. Nyakuma; Samuel Soma M. Ajibade; Victor B. Adebayo; Habib Alkali; Victor O. Otitolaiye; Jemilatu O. Audu; Faizah M. Bashir; Yakubu A. Dodo; Abubakar S. Mahmoud; Olagoke Oladokun

doi:10.15330/pcss.23.1.16-24

Carbon dioxide-assisted Torrefaction of Maize Cobs by Thermogravimetry: Product Yield and Energy Recovery Potentials

Translated title of the contribution: Carbon dioxide-assisted Torrefaction of Maize Cobs by Thermogravimetry: Product Yield and Energy Recovery Potentials

Bemgba B. Nyakuma
, Samuel Soma M. Ajibade
, Victor B. Adebayo
, Habib Alkali
, Victor O. Otitolaiye
, Jemilatu O. Audu
, Faizah M. Bashir
, Yakubu A. Dodo
, Abubakar S. Mahmoud
, Olagoke Oladokun

College of Dammam Community

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The objective of this study is to examine the potential product yields and energy recovery of maize cobs (MC) through carbon dioxide-assisted torrefaction using thermogravimetric analysis (TGA). The CO2-assisted torrefaction of MC was performed from 240 °C to 300 °C (Δ 30 °C) for the residence time of 30 minutes based on the selected non-isothermal/isothermal heating programme of the TGA. Furthermore, the physicochemical, microstructure and mineral characteristics of MC were examined. The results showed that the CO2-torrefaction of MC resulted in mass loss (ML) ranging from 18.45% to 55.17%, which resulted in the mass yield (MY) ranging from 81.55% to 44.83%. The HHV of the solid product was in the range from 22.55 MJ/kg to 26 MJ/kg, which indicates the CO2-torrefaction process enhanced the energy content of MC by 40% – 60%. In conclusion, the findings showed that the CO2 torrefaction is a practical, sustainable, and cost-effective approach for the valorisation of MC into a clean solid biofuel for enhanced energy recovery.

Translated title of the contribution	Carbon dioxide-assisted Torrefaction of Maize Cobs by Thermogravimetry: Product Yield and Energy Recovery Potentials
Original language	English
Pages (from-to)	16-24
Number of pages	9
Journal	Physics and Chemistry of Solid State
Volume	23
Issue number	1
DOIs	https://doi.org/10.15330/pcss.23.1.16-24
State	Published - 2022

Bibliographical note

Publisher Copyright:
© 2022 Precarpathian National University. All Rights Reserved.

Keywords

Carbon dioxide
Energy Recovery
Maize Cobs
Thermogravimetry
Torrefaction

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Physical and Theoretical Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.15330/pcss.23.1.16-24

Cite this

Nyakuma, B. B., Ajibade, S. S. M., Adebayo, V. B., Alkali, H., Otitolaiye, V. O., Audu, J. O., Bashir, F. M., Dodo, Y. A., Mahmoud, A. S., & Oladokun, O. (2022). Carbon dioxide-assisted Torrefaction of Maize Cobs by Thermogravimetry: Product Yield and Energy Recovery Potentials. Physics and Chemistry of Solid State, 23(1), 16-24. https://doi.org/10.15330/pcss.23.1.16-24

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abstract = "The objective of this study is to examine the potential product yields and energy recovery of maize cobs (MC) through carbon dioxide-assisted torrefaction using thermogravimetric analysis (TGA). The CO2-assisted torrefaction of MC was performed from 240 °C to 300 °C (Δ 30 °C) for the residence time of 30 minutes based on the selected non-isothermal/isothermal heating programme of the TGA. Furthermore, the physicochemical, microstructure and mineral characteristics of MC were examined. The results showed that the CO2-torrefaction of MC resulted in mass loss (ML) ranging from 18.45\% to 55.17\%, which resulted in the mass yield (MY) ranging from 81.55\% to 44.83\%. The HHV of the solid product was in the range from 22.55 MJ/kg to 26 MJ/kg, which indicates the CO2-torrefaction process enhanced the energy content of MC by 40\% – 60\%. In conclusion, the findings showed that the CO2 torrefaction is a practical, sustainable, and cost-effective approach for the valorisation of MC into a clean solid biofuel for enhanced energy recovery.",

keywords = "Carbon dioxide, Energy Recovery, Maize Cobs, Thermogravimetry, Torrefaction",

author = "Nyakuma, \{Bemgba B.\} and Ajibade, \{Samuel Soma M.\} and Adebayo, \{Victor B.\} and Habib Alkali and Otitolaiye, \{Victor O.\} and Audu, \{Jemilatu O.\} and Bashir, \{Faizah M.\} and Dodo, \{Yakubu A.\} and Mahmoud, \{Abubakar S.\} and Olagoke Oladokun",

year = "2022",

doi = "10.15330/pcss.23.1.16-24",

language = "English",

volume = "23",

pages = "16--24",

journal = "Physics and Chemistry of Solid State",

issn = "1729-4428",

publisher = "Vasyl Stefanyk Precarpathian National University",

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T1 - Carbon dioxide-assisted Torrefaction of Maize Cobs by Thermogravimetry

T2 - Product Yield and Energy Recovery Potentials

AU - Nyakuma, Bemgba B.

AU - Ajibade, Samuel Soma M.

AU - Adebayo, Victor B.

AU - Alkali, Habib

AU - Otitolaiye, Victor O.

AU - Audu, Jemilatu O.

AU - Bashir, Faizah M.

AU - Dodo, Yakubu A.

AU - Mahmoud, Abubakar S.

AU - Oladokun, Olagoke

PY - 2022

Y1 - 2022

N2 - The objective of this study is to examine the potential product yields and energy recovery of maize cobs (MC) through carbon dioxide-assisted torrefaction using thermogravimetric analysis (TGA). The CO2-assisted torrefaction of MC was performed from 240 °C to 300 °C (Δ 30 °C) for the residence time of 30 minutes based on the selected non-isothermal/isothermal heating programme of the TGA. Furthermore, the physicochemical, microstructure and mineral characteristics of MC were examined. The results showed that the CO2-torrefaction of MC resulted in mass loss (ML) ranging from 18.45% to 55.17%, which resulted in the mass yield (MY) ranging from 81.55% to 44.83%. The HHV of the solid product was in the range from 22.55 MJ/kg to 26 MJ/kg, which indicates the CO2-torrefaction process enhanced the energy content of MC by 40% – 60%. In conclusion, the findings showed that the CO2 torrefaction is a practical, sustainable, and cost-effective approach for the valorisation of MC into a clean solid biofuel for enhanced energy recovery.

AB - The objective of this study is to examine the potential product yields and energy recovery of maize cobs (MC) through carbon dioxide-assisted torrefaction using thermogravimetric analysis (TGA). The CO2-assisted torrefaction of MC was performed from 240 °C to 300 °C (Δ 30 °C) for the residence time of 30 minutes based on the selected non-isothermal/isothermal heating programme of the TGA. Furthermore, the physicochemical, microstructure and mineral characteristics of MC were examined. The results showed that the CO2-torrefaction of MC resulted in mass loss (ML) ranging from 18.45% to 55.17%, which resulted in the mass yield (MY) ranging from 81.55% to 44.83%. The HHV of the solid product was in the range from 22.55 MJ/kg to 26 MJ/kg, which indicates the CO2-torrefaction process enhanced the energy content of MC by 40% – 60%. In conclusion, the findings showed that the CO2 torrefaction is a practical, sustainable, and cost-effective approach for the valorisation of MC into a clean solid biofuel for enhanced energy recovery.

KW - Carbon dioxide

KW - Energy Recovery

KW - Maize Cobs

KW - Thermogravimetry

KW - Torrefaction

UR - https://www.scopus.com/pages/publications/85128677905

U2 - 10.15330/pcss.23.1.16-24

DO - 10.15330/pcss.23.1.16-24

M3 - Article

AN - SCOPUS:85128677905

SN - 1729-4428

VL - 23

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JO - Physics and Chemistry of Solid State

JF - Physics and Chemistry of Solid State

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ER -

Carbon dioxide-assisted Torrefaction of Maize Cobs by Thermogravimetry: Product Yield and Energy Recovery Potentials

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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