Saimir A. Lolja
This study investigates the alkaline removal of sulfur from low-rank coal using a 1M KOH solution at room temperature, with a maximum treatment duration of 2 hours. The objective was to develop a model that accurately describes the desulfurization mechanism in relation to total sulfur content in a homogeneous coal particle. The methodology utilized the unreacted-shrinking core model, which omits the external diffusion stage, focusing on the chemical reaction during the diffusive flow of KOH through the coal particle's pores. Results indicated that this treatment could effectively remove 50% of the total sulfur within the specified time, with the majority of the conversion occurring in the initial 30 minutes. The study highlights the significance of kinetics in the reaction process and aims to establish a successful kinetic model based on total sulfur measurement, taking into account the predominant pyritic sulfur present in the coal sample. This model may facilitate further design and optimization for sulfur removal processes in coal treatment.
@article{575021e9-5b50-4e99-b7fc-c1051d08f63e,
title={A model for alkaline removal of sulfur f},
author={Saimir A. Lolja},
year={2026},
language={en}
}TY - JOUR TI - A model for alkaline removal of sulfur f AU - Saimir A. Lolja PY - 2026 LA - en ER -
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