Chiang Mai Journal of Science

Print ISSN: 0125-2526 | eISSN : 2465-3845

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Characterization, Compositional Analysis and Calorific Value of Terminalia ivorensis Sawdust, Corncob and Low-Density Polyethylene as Potential Blended Feedstock for Bio-oil Production

Sakina Bello, Taofik Olatunde Uthman, Serdar Surgun and Abdullahi Muhammad Sokoto
* Author for corresponding; e-mail address: taosun77@gmail.com
Volume: Vol.52 No.4 (July 2025)
Research Article
DOI: https://doi.org/10.12982/CMJS.2025.056
Received: 18 December 2024, Revised: 12 April 2025, Accepted: 24 May 2025, Published: 23 July 2025

Citation: Bello S., Uthman T.O., Surgun S. and Sokoto A.M., Characterization, compositional analysis and calorific value of Terminalia ivorensis sawdust, corncob and low-density polyethylene as potential blended feedstock for bio-oil production. Chiang Mai Journal of Science, 2025; 52(4): e2025056. DOI 10.12982/CMJS.2025.056.

Graphical Abstract

Graphical Abstract

Abstract

     Biomass presents a promising alternative to fossil fuels, and its potential can be further enhanced through co-pyrolysis with plastics or polymers. This study investigates the feasibility of co-pyrolyzing corncob, sawdust, and low-density polyethylene (LDPE) for bio-oil production. Characterization of the feedstocks using ASTM standard revealed significant hemicellulose content in corncob (28.58%) and sawdust (25.32%), indicating their potential for yielding lighter bio-oil components. Proximate analysis using ASTM standard indicated volatile matter contents of 76.11±0.23% for corncob and 71.24±0.54% for sawdust, while LDPE exhibited a higher calorific value of 41.23 MJ/kg compared to 8.10 MJ/kg for corncob and 26.20 MJ/kg for sawdust. FTIR analysis identified notable C=O carbonyls, C=C alkenes and aromatic content in corncob and sawdust, suggesting their suitability for bio-oil production. Thermogravimetric analysis revealed significant weight loss for corncob and sawdust between 200°C and 400°C, corresponding to hemicellulose and cellulose decomposition, whereas LDPE degradation commenced at 400°C. Differential thermal analysis curves confirmed endothermic peaks for both biomass resources and LDPE, indicating thermal stability. These findings underscore the potential of co-pyrolysis in enhancing bio-oil yield and quality, thereby contributing to waste reduction and sustainable energy solutions.

Keywords: biomass, bio-oil, corncob, feedstock, pyrolysis, sawdust

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