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All Journal Asian Journal of Science, Technology, Engineering, and Art Mikailalsys Journal of Advanced Engineering International
Smael Magloire Elombo Motoula
Unknown Affiliation
Arts Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering Social Sciences

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Valorisation of Waste Tires by Pyrolysis in the Republic of Congo Ulrich Berry; Smael Magloire Elombo Motoula; Réné Evrard Josué Samba
Asian Journal of Science, Technology, Engineering, and Art Vol 4 No 1 (2026): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v4i1.8699

Abstract

The pyrolysis of waste tires represents an effective strategy for simultaneous energy recovery and waste reduction, yet further empirical characterization of the resulting pyrolytic oil is needed to assess its suitability as an alternative fuel. This study aims to obtain pyrolytic oil from end-of-life tires and analyze its main physical characteristics to evaluate its potential for energy applications. The oil produced by pyrolysis exhibits a density of 769.4 kg/m³, a specific gravity of 0.7694, a low kinematic viscosity of 1.5 cSt, and a slightly acidic pH of 4, values that are consistent with those reported in the literature. These characteristics indicate a high proportion of light hydrocarbons, suggesting that the oil is suitable for use as a fuel or as a fuel additive. Observed variations compared with other studies highlight the influence of tire composition and pyrolysis conditions on the quality and properties of the obtained oil, underlining the importance of process optimization. Overall, the findings confirm that tire pyrolysis is a promising method for energy recovery from waste tires, providing a sustainable pathway for hydrocarbon production while contributing to improved solid waste management and resource valorization.
Physical Properties of Petroleum Products Marketed in Congo Ulrich Berry; Smäel Magloire Elombo Motoula; Westinevy Benarez Ndzessou
Mikailalsys Journal of Advanced Engineering International Vol 3 No 1 (2026): Mikailalsys Journal of Advanced Engineering International
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/mjaei.v3i1.8355

Abstract

The use of fuels and combustibles in internal combustion engines requires strict quality standards to ensure operational efficiency and to limit the environmental impact of emissions. This study focuses on the characterization of the physical properties of petroleum products marketed in Congo, with particular attention to parameters that are critical for proper engine functioning and environmental performance. To achieve this objective, a series of laboratory analyses was conducted on petroleum product samples to determine mass density, specific gravity, color, pH, and viscosity. These measurements were obtained using a controlled experimental setup that included a precision balance, test tube, stopwatch, and an aluminum-ball arrangement for viscosity determination. The characterization carried out provides a coherent description of the physical quality of the petroleum products examined and illustrates how essential fuel properties can be systematically monitored through relatively simple but rigorous testing procedures. The study concludes that careful control of these physical parameters is fundamental to ensuring that petroleum products meet the standards required for safe, efficient engine operation and for reducing the potential contribution of inadequate fuel quality to environmental pollution, thereby underscoring the importance of strengthening quality control practices in the fuel supply chain.
Co-Authors Réné Evrard Josué Samba Ulrich Berry Westinevy Benarez Ndzessou