Experimental analysis of air-steam gasification of biomass with coal-bottom ash |
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| Affiliation: | 1. School of Machinery and Power Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China;2. Chongqing Waste to Energy Research & Technology Institute, Chongqing, 401331, China;1. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;2. State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China;1. Henan Engineering Research Center of Resource & Energy Recovery from Waste, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China;2. State Key Laboratory of Fine Chemicals, Institute of Coal Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China;1. Technische Universität Berlin, Institute of Energy Engineering, Chair for Energy Processs Engineering and Conversion Technologies for Renewable Energies (EVUR), Fasanenstr. 89, 10623, Berlin, Germany;2. Institute of Combustion and Power Plant Technology (IFK), University of Stuttgart, Pfaffenwaldring 23, 70569, Stuttgart, Germany;3. Civil Engineer and Consultant for Chemical Engineering, Landscha 3, 8160, Thannhausen, Weiz, Austria;4. General Energy Research Department (ENE), Paul Scherrer Institute (PSI), CH-5232, Villigen, PSI, Switzerland;1. Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, China;2. College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China;1. State Key Laboratory of Heavy Oil Processing, China, University of Petroleum (East China), Qingdao, Shandong 266580, China;2. Key Laboratory of Low Carbon Energy and Chemical Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China;3. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264000, China;4. Shandong Engineering and Technology Research Center of High Carbon Energy Low Carbonization, Qingdao, Shandong 266590, China;1. Graduate School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-Gu, Seoul 02504, Republic of Korea;2. Graduate School of Energy and Environmental System Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-Gu, Seoul 02504, Republic of Korea |
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| Abstract: | Biomass gasification is an attractive option for producing high-quality syngas (H2+CO) due to its environmental advantages and economic benefits. However, due to some technical problems such as tar formation, biomass gasification has not yet been able to achieve its purpose. The purpose of this work was to study the catalytic activity of coal-bottom ash for fuel gas production and tar elimination. Effect of gasification parameters including reaction temperature (700–900 °C), equivalence ratio, EQR (0.15–0.3) and steam-to-biomass ratio, SBR (0.34–1.02) and catalyst loading (5.0–13 wt %) on gas distribution, lower heating value (LHV) of gas steam, tar content, gas yield and H2/CO ratio was studied. The tar content remarkably decreased from 3.81 g/Nm3 to 0.97 g/Nm3 by increasing char-bottom ash from 5.0 wt% to 13.0 wt%. H2/CO significantly increased from 1.12 to 1.54 as the char-bottom ash content in the fuel increased from 5.0 wt% to 13.0 wt%. |
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| Keywords: | Biomass Gasification Coal-bottom ash Tar content Fuel gas production |
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