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生物质化学工程 ›› 2017, Vol. 51 ›› Issue (4): 59-65.doi: 10.3969/j.issn.1673-5854.2017.04.009

• 研究报告 • 上一篇    下一篇

生物质水热炭制备过程的环境影响评价

于瑞冬, 董悦, 郭明辉   

  1. 东北林业大学 生物质材料与技术教育部重点实验室, 黑龙江 哈尔滨 150040
  • 收稿日期:2016-06-30 出版日期:2017-07-30 发布日期:2017-08-03
  • 通讯作者: 郭明辉,教授,博士生导师,主要从事木材学和生物质复合材料研究,E-mail:gmh1964@126.com E-mail:gmh1964@126.com
  • 作者简介:于瑞冬(1992-),男,山东青州人,硕士生,主要从事生物质炭材料研究工作
  • 基金资助:
    十二五国家科技支撑计划资助(2015BAD14B05)

Environmental Impact Assessment of Biomass-derived Hydrothermal Carbon Material Production

YU Ruidong, DONG Yue, GUO Minghui   

  1. Northeast Forestry University, Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Harbin 150040, China
  • Received:2016-06-30 Online:2017-07-30 Published:2017-08-03

摘要: 以生物质水热炭为研究对象,运用生命周期评价(LCA)方法,对生物质水热炭制备过程的环境影响进行分析与评价,通过建立输入、输出清单,从温室效应、环境酸化、资源消耗等方面,基于GaBi6.0软件建立模型并计算,分析生物质水热炭制备过程对环境产生的影响。结果表明:生物质水热炭制备过程对6类主要环境影响由大到小的顺序依次为温室效应、环境酸化、光化学臭氧生成潜力、富营养化、资源消耗和臭氧层破坏;我国为碳密集型发电地区,电能的消耗是该制备过程对环境影响最主要的原因,火力发电排放CO2、SO2、NOx等气体为主要环境影响因素。水热炭化是水热炭制备过程中对环境影响的主要环节。针对此结果,提出降低水热炭化温度、缩短水热炭化时间、提高水热炭产率,从而减少能源的消耗,降低环境影响。

关键词: 水热炭, 生命周期评价, 环境影响

Abstract: The environmental impact of biomass hydrothermal carbon material production was assessed by using life cycle assessment(LCA). A life cycle inventory including input and output processes of biomass hydrothermal carbon material production was established based on inventory analysis. GaBi 6.0 software was used to model and calculate the original data to obtain the corresponding environmental impact potentials on global warming potential(GWP), acidification potential(AP), abiotic depletion potential(ADP), etc. The results showed that the effect order of production process on the environmental impacts was GWP, AP, photochemical ozone creation potential(POCP), eutrophication potential(EP), ADP and ozonospher disturbance potential(ODP). The power consumption was the uppermost environment impact factor. As the power generation of our country was carbon intensive, the emissions of CO2, SO2, NOx from thermal power were the main environmental impact factors. The key environmental influencing link in hydrothermal carbon production was hydrothermal carbonization. According to this result, it would be helpful for reducing the environmental impact of biomass hydrothermal carbon material by reducing hydrothermal carbonization temperature or shortening the time of hydrothermal carbonization.

Key words: hydrothermal carbon, life cycle assessment, environmental impact

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