In the present work, a detailed thermo-kinetics of hazardous sulfur-rich sludge generated from the corn processing industry was performed for acquiring the optimum parameters for the efficient recovery of sulfur using the evaporation-condensation technique. Sulfur in the sludge was found to be 79 ± 3% (wt%) as estimated by the Bureau of Indian Standards method. A weight loss of 77 ± 3% was found in the active devolatilization zone from ≈ 200–400 °C. The online FTIR confirmed the evolution of mainly sulfur vapors (S₈) along with some sulfur dioxide (SO₂) and disulfur (S₂). The thermogravimetric data (TG) was used to evaluate the kinetic parameters with the help of model-free methods, and Z-master plots determined additional insight into the reaction mechanism. Furthermore, the calculated activation energy (E_a) was used to determine the thermodynamic feasibility. The average E_a values appraised by FM, FWO, sDAEM, and ST models were 55.43, 72.04, 62.33, and 62.67 kJ mol⁻¹, respectively. Overall, 91.2% of sulfur was successfully recovered at 400 °C, having 99 ± 0.5% purity. The approximate cost analysis of the sulfur recovery process was also estimated to check the economic viability. Recovered sulfur could be directly used for industrial and agricultural applications without any further purification.

在目前的工作中，对玉米加工业产生的有害富硫污泥进行了详细的热动力学研究，以获得使用蒸发-冷凝技术有效回收硫的最佳参数。根据印度标准局的方法估计，污泥中的硫含量为 79 ± 3% (wt%)。在 ≈ 200–400 °C 的活性脱挥发分区发现了 77 ± 3% 的重量损失。在线 FTIR 确认主要是硫蒸气 (S ₈ ) 以及一些二氧化硫 (SO ₂ ) 和二硫 (S ₂）。热重数据 (TG) 用于在无模型方法的帮助下评估动力学参数，Z-master 图确定了对反应机制的更多了解。此外，计算的活化能（E _a）用于确定热力学可行性。FM、FWO、sDAEM 和 ST 模型评估的平均 E _a值分别为 55.43、72.04、62.33 和 62.67 kJ mol ^-1。总体而言，91.2% 的硫在 400 °C 下成功回收，纯度为 99 ± 0.5%。还估计了硫回收过程的近似成本分析，以检查经济可行性。回收的硫可直接用于工业和农业应用，无需进一步纯化。