Kinetics,thermodynamics and synergistic effects analyses of petroleum coke and biomass wastes during H2O co-gasification |
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| Affiliation: | 1. State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, PR China;2. Department of Mechanical Engineering, Faculty of Engineering, University of Blue Nile, Roseires, Sudan;3. Department of Mechanical Engineering, Alsalama College of Sciences & Technology (ACST), Khartoum Bahri, Sudan;4. Key Laboratory of Coal Clean Conversion and Chemical Process Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, Xinjiang, 830000, PR China;5. Mechanical Engineering Department, Faculty of Engineering, Kafrelsheikh University, Egypt;6. Production Engineering and Mechanical Design Department, Faculty of Engineering, TantaUniversity, Tanta, Egypt;7. Mechanical Engineering Department, Faculty of Engineering, Sinnar University, Sinnar, Sudan;1. Institute of Clean Coal Technology, East China University of Science and Technology, Shanghai, 200237, PR China;2. State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan, 750021, PR China;3. Department of Environmental Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan;1. Hebei Key Laboratory of Heterocyclic Compounds, Handan University, Handan, Hebei, 056005, PR China;2. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, PR China;1. Institute of Clean Coal Technology, East China University of Science and Technology, Shanghai, 200237, PR China;2. Department of Environmental Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan;3. State Key Laboratory of High-Efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan, Ningxia, 750021, PR China;1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China;2. College of Physics and New Energy, Xuzhou University of Technology, Xuzhou 221018, China;3. School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China;1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China;2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | In this study, the H2O co-gasification of petroleum coke (PC) with low (sulfur and V2O5 contents) and different five kinds of biomass wastes were conducted using a thermogravimetric analyzer (TGA). The biomass used were the agricultural wastes (rice husk (RH), rice stalk (RS), and cotton straw (CS)) and by-product wastes (sawdust (SD) and sugar cane bagasse (SCB)). Their reactivities, kinetics and thermodynamics parameters were investigated and compared in detail as well as a synergistic effect during co-gasification of the blends. The kinetics and thermodynamics parameters were estimated by using the homogeneous model (HM) or the first-order chemical reaction (O1) and shrinking core models (SCM) or Phase boundary controlled reactions (R2 and R3). It was found that the biomass wastes was significantly improved the blends gasification reactivity. The obvious significant synergistic effect was observed in the char gasification stage of the blends compared with the pyrolysis stage. Compared to other models the phase boundary controlled reaction (R2) was found to be the best model to predict the experimental data of the co-gasification process. For both reaction stages of single fuels, SD showed the lowest values of activation energy and thermodynamics parameters. The blends of PC: SD and PC: CS provided the lowest activation energy and thermodynamics parameters for the pyrolysis stage and the char gasification stage, respectively. The co-gasification of PC and biomass wastes are a promising technique for the efficient utilization of PC and biomass wastes. |
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| Keywords: | Low sulfur petroleum coke Biomass wastes Synergistic effect Thermos-kinetics parameters reactivity |
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