Treatment of biomass tar by CO2 plasma |
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| Authors: | Ming ZHANG Lehao LI Rulong LI Jianhua WU Baogen SU Guangdong WEN Qiwei YANG Qilong REN |
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| Affiliation: | Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China |
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| Abstract: | The tar produced in the process of biomass gasification would not only corrode the pipelines and equipment, but also reduce the efficiency of biomass gasification. Traditional methods, such as physical treatment and thermal cracking, have deficiencies which severely restrict their application. This article achieved efficient transformation (carbon yield >90%) from benzene and naphthalene, regarded as model compounds of biomass tar, to syngas using CO2 plasma on self-designed rotating arc plasma torch, proving the feasibility of CO2 plasma treatment of biomass tar. Further analysis on the composition of practical biomass tar and the investigation of biomass tar gasification were carried out. Water content in biomass tar could be used as gasification agent and control the H2/CO scale (0.3—1). The above results provide new ideas for the development of biomass tar harmlessness and resource utilization technology. |
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| Keywords: | rotating arc plasma biomass tar gasification carbon dioxide syngas |
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