The study of ultrasound-assisted oxidative desulfurization process applied to the utilization of pyrolysis oil from waste tires |
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| Authors: | Teng-Chien Chen Yun-Hwei Shen Wen-Jhy Lee Chih-Chung Lin Meng-Wei Wan |
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| Institution: | 1. Department of Resources Engineering, National Cheng KungUniversity, No.1, Ta-Hsueh Road, 701 Tainan, Taiwan, ROC;2. Department of Environmental Engineering, National Cheng Kung University, No.1, Ta-Hsueh Road, 701 Tainan, Taiwan, ROC;3. Department of Environmental Engineering and Science, National Ping Tung University of Science and Technology, 1 Hseuh-Fu Road, Nei Pu, 912, Ping Tung, Taiwan, ROC;4. Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, 60, Erh-Jen Road, Sec.1, Jen-Te, 717, Tainan, Taiwan, ROC;5. Resource Recycling And Management Research Center, National Cheng Kung University, No.500, Sec. 3, Anming Road, Tainan 709, Taiwan, ROC;1. Department of Measurements and Process Control, Faculty of Chemical Engineering and Technology, University of Zagreb, Maruli?ev trg 19, HR-10000 Zagreb, Croatia;2. Petroleum and Petrochemical Department, Faculty of Chemical Engineering and Technology, University of Zagreb, Maruli?ev trg 19, HR-10000 Zagreb, Croatia;3. Department of Industrial Ecology, Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10000 Zagreb, Croatia;1. Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China;2. College of Environmental & Energy Engineering, Beijing University of Technology, Beijing, 100124, China;3. Sinopec Tenth Construction CO., Ltd, Shandong Province, 266555, China;1. Chemical Engineering Department, De La Salle University, 2401 Taft Ave, Manila 0922, Philippines;2. Department of Environmental Resource Management, Chia-Nan University of Pharmacy and Science, Tainan 71710, Taiwan |
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| Abstract: | In recent years, the increasing world population and rapid industrial development has increased the consumption of fossil fuel-derived oils. In response to the resulting exhaustion of fossil fuel energy, many countries around the world are investigating methods of waste energy recovery and reuse, including oil recovery from the pyrolysis process of waste tires. This study investigates the efficiency of an ultrasound-assisted oxidative desulfurization (UAOD) process in sulfur reduction from diesel oil and the pyrolysis oil from waste tires treatment. The results indicate that the oxidation efficiency increases as the doses of transition metal catalyst are increased. Longer sonication time also enhances the oxidation process, apparently through the biphasic transfer of oxidants, which results in a high yield of organic sulfur oxidation products. The best desulfurization efficiency was 99.7% (2.67 ppm sulfur remaining) and 89% (800 ppm sulfur remaining) for diesel and pyrolysis oils, respectively, via a process executed by two UAOD units connected in series and combined with solid adsorption using 30 g of Al2O3 in 6 cm columns. These batch experiment results demonstrate clean waste energy recovery and utilization, while fulfilling the requirements of Taiwan EPA environmental regulations (sulfur concentrations less than 5000 ppm). |
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