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Mahapatra, Pabitra, Acharya, Maneesh, Gouda, Narayan, Sabat, Gayatri, Panda, Achyut. (1404). Isothermal Pyrolysis of Low-Rank Coal: Kinetic Study, Batch Experiments, and Product Analysis. , (), -. doi: 10.22059/jchpe.2025.387645.1586
Pabitra Mohan Mahapatra; Maneesh Acharya; Narayan Gouda; Gayatri Sabat; Achyut Kumar Panda. "Isothermal Pyrolysis of Low-Rank Coal: Kinetic Study, Batch Experiments, and Product Analysis". , , , 1404, -. doi: 10.22059/jchpe.2025.387645.1586
Mahapatra, Pabitra, Acharya, Maneesh, Gouda, Narayan, Sabat, Gayatri, Panda, Achyut. (1404). 'Isothermal Pyrolysis of Low-Rank Coal: Kinetic Study, Batch Experiments, and Product Analysis', , (), pp. -. doi: 10.22059/jchpe.2025.387645.1586
Mahapatra, Pabitra, Acharya, Maneesh, Gouda, Narayan, Sabat, Gayatri, Panda, Achyut. Isothermal Pyrolysis of Low-Rank Coal: Kinetic Study, Batch Experiments, and Product Analysis. , 1404; (): -. doi: 10.22059/jchpe.2025.387645.1586

Isothermal Pyrolysis of Low-Rank Coal: Kinetic Study, Batch Experiments, and Product Analysis

Journal of Chemical and Petroleum Engineering
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 09 تیر 1404    اصل مقاله (1.62 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jchpe.2025.387645.1586
نویسندگان
Pabitra Mohan Mahapatra1؛ Maneesh Acharya1؛ Narayan Gouda2؛ Gayatri Sabat1؛ Achyut Kumar Panda* 1
1Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
2Department of Chemistry, School of Applied Sciences, Centurion University of Technology and Management, Paralakhemundi, Odisha, India
چکیده
Effective use of low-grade coal is essential for meeting worldwide energy needs and minimizing ecological effects, which makes studying its thermal decomposition a key focus for sustainable energy development. Understanding the pyrolytic degradation process of coal is crucial for optimizing its use in eco-friendly energy solutions. It is hypothesized that the isothermal pyrolysis of low-rank coal at different temperatures will exhibit different kinetic behaviors and produce valuable condensable products. This research investigates the pyrolytic behavior, kinetics, and batch pyrolysis of low-rank coal. Thermo-gravimetric analysis was conducted under isothermal conditions at temperatures ranging from 350 to 500 °C, with a 25 °C increment, for 2 hours in an inert atmosphere. The data were analyzed using model-fitting methods, testing a total of 21 models to calculate the reaction kinetics. The results revealed that weight loss increased with temperature, reaching a maximum at 18.61% (450 °C), with activation energies of 5.817–123.51 kJ/mol. The D2 diffusion model best described the process (Ea = 7.267 kJ/mol, A = 0.022 min⁻¹). The pyrolysis index rose from 0.0113 (350 °C) to 0.051 (500 °C). At 450°C, 18.9% condensable products formed, containing alkanes, alicyclics, and aromatics (FTIR/GC-MS). These findings aid in optimizing sustainable pyrolysis of low-rank coal for valuable outputs.
کلیدواژه‌ها
Batch pyrolysis؛ Isothermal pyrolysis؛ low-rank coal؛ Model-fitting؛ Pyrolysis index
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تعداد مشاهده مقاله: 14
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