Production of value-added biochar and bio-oil from microwave CO₂ pyrolysis of medium-density fiberboard waste

Shin, Ying Foong and Low, Felicia and Nai, Peter Yuh Yek and Yang, Yan and Meng, Lingbo and Liew, Rock Keey and Meenakshi Verma, . and Natarajan Rajamohan, . and Su, Shiung Lam (2024) Production of value-added biochar and bio-oil from microwave CO₂ pyrolysis of medium-density fiberboard waste. Journal of Sustainability Science and Management (Malaysia), 19 (6). pp. 75-84. ISSN 2672-7226

This study investigates the feasibility of using microwave CO₂ pyrolysis to dispose of medium-density fibreboard (MDF) waste, a significant by-product of the furniture manufacturing industry. The primary goal is to transform MDF waste into value- added biochar and bio-oil, exploring an alternative to conventional pyrolysis methods that typically use nitrogen (N₂) as a purge gas. The research emphasises the potential benefits of CO₂ utilisation in pyrolysis, both to enhance the quality of biochar and bio-oil and as a strategy for greenhouse gas (GHG) mitigation. This research reveals that conducting microwave pyrolysis in a CO₂ atmosphere increases biochar (up to 44.8%) and bio-oil (up to 21.2%) yields over N₂ pyrolysis. CO₂ hinders volatile thermal cracking and aids in gas defragmentation and repolymerisation, with biochar yield rising with time and bio-oil peaking at an optimal duration. This study underscores microwave CO₂ pyrolysis as a promising alternative for converting biomass waste into valuable products, potentially contributing to fuel utilisation. It also highlights the environmental benefits of this method, particularly in terms of CO₂ utilisation, aligning with the broader objectives of sustainable waste management and renewable energy production. The findings provide a basis for future research in this area, focusing on optimising process parameters, exploring potential applications of bio-products, and assessing the economic and environmental viability of this innovative approach.

Full text available from: Official URL: https://jssm.umt.edu.my/wp-content/uploads/2024/06...

Abstract

This study investigates the feasibility of using microwave CO₂ pyrolysis to dispose of medium-density fibreboard (MDF) waste, a significant by-product of the furniture manufacturing industry. The primary goal is to transform MDF waste into value- added biochar and bio-oil, exploring an alternative to conventional pyrolysis methods that typically use nitrogen (N₂) as a purge gas. The research emphasises the potential benefits of CO₂ utilisation in pyrolysis, both to enhance the quality of biochar and bio-oil and as a strategy for greenhouse gas (GHG) mitigation. This research reveals that conducting microwave pyrolysis in a CO₂ atmosphere increases biochar (up to 44.8%) and bio-oil (up to 21.2%) yields over N₂ pyrolysis. CO₂ hinders volatile thermal cracking and aids in gas defragmentation and repolymerisation, with biochar yield rising with time and bio-oil peaking at an optimal duration. This study underscores microwave CO₂ pyrolysis as a promising alternative for converting biomass waste into valuable products, potentially contributing to fuel utilisation. It also highlights the environmental benefits of this method, particularly in terms of CO₂ utilisation, aligning with the broader objectives of sustainable waste management and renewable energy production. The findings provide a basis for future research in this area, focusing on optimising process parameters, exploring potential applications of bio-products, and assessing the economic and environmental viability of this innovative approach.

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Item Type:	Article
AGROVOC Term:	biochar
AGROVOC Term:	wood residues
AGROVOC Term:	pyrolysis
AGROVOC Term:	recycling
AGROVOC Term:	carbon dioxide
AGROVOC Term:	value added
AGROVOC Term:	waste utilization
Geographical Term:	Malaysia
Depositing User:	Mr. Khoirul Asrimi Md Nor
Date Deposited:	09 Apr 2025 02:20
Last Modified:	09 Apr 2025 02:20
URI:	http://webagris.upm.edu.my/id/eprint/2550

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