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Nur Alwani Ali Bashah Faculty of Chemical Engineerin , Universiti Teknologi MARA Cawangan Pulau Pinang, Permatang Pauh Campus, 13500 Permatang Pauh, Pulau Pinang, Malaysia Advanced Materials for Effective Pollution Mitigation (AdvaMEP), Universiti Teknologi MARA Cawangan Pulau Pinang, Permatang Pauh Campus, 13500 Permatang Pauh, Pulau Pinang, Malaysia Wan Zuraida Wan Kamis Faculty of Chemical Engineerin , Universiti Teknologi MARA Cawangan Pulau Pinang, Permatang Pauh Campus, 13500 Permatang Pauh, Pulau Pinang, Malaysia Advanced Materials for Effective Pollution Mitigation (AdvaMEP), Universiti Teknologi MARA Cawangan Pulau Pinang, Permatang Pauh Campus, 13500 Permatang Pauh, Pulau Pinang, Malaysia Muhammad Zahiruddin Ramli Faculty of Chemical Engineerin , Universiti Teknologi MARA Cawangan Pulau Pinang, Permatang Pauh Campus, 13500 Permatang Pauh, Pulau Pinang, Malaysia Advanced Materials for Effective Pollution Mitigation (AdvaMEP), Universiti Teknologi MARA Cawangan Pulau Pinang, Permatang Pauh Campus, 13500 Permatang Pauh, Pulau Pinang, Malaysia Siti Shawalliah Idris Faculty of Chemical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia. Mohamad Anuar Kamaruddin Environmental Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia.
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| Abstract | |
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This study investigates the influence of pyrolysis time on product yield and bio-oil quality in the catalytic co-pyrolysis (CCP) of cotton fabric waste (CFW) and polypropylene plastic waste (PPW). The experiments were conducted in a fixed-bed microreactor using a chromium-extracted alumina (15CE) catalyst, with reaction times varied between 15 and 75 min under constant conditions (500 °C, 1:1 CFW/PPW ratio, and 1:1 F/C ratio). The results indicate that pyrolysis time significantly affects bio-oil and gas production. Extending the reaction time to 60 min maximized bio-oil yield, reaching 76.4 %. The minimal variation in char yield across different pyrolysis times suggests that the thermal degradation of the feedstock was completed within the first 15 min of CCP. GC-MS analysis revealed that bio-oil primarily consists of hydrocarbon and alcohol, while the concentrations of acids and sugar-derived compounds decreased, indicating their conversion into valuable fuel and chemical products. At a reaction time of 75 min, the formation of aromatic hydrocarbons increased, accompanied by a reduction in oxygenated compounds. Based on both bio-oil yield and quality, a pyrolysis time of 60 min was identified as the best condition for the catalytic co-pyrolysis of CFW-PPW using the 15CE catalyst, achieving the highest yield while maintaining an acceptable bio-oil quality. |
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| Keyword: Catalytic co-pyrolysis, Cotton fabric waste, Industrial waste, Plastic, Bio-oil, Pyrolysis time | |
| References: | |
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Bio-oil production from cotton fabric and plastic waste: influence of pyrolysis time in catalytic co-pyrolysis
