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Life cycle assessment of typical methanol production routes: The environmental impacts analysis and power optimization

机译:典型甲醇生产路线的生命周期评估:环境影响分析和功率优化

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摘要

China is the largest producer and consumer of methanol in the world. The methanol industry will continuously develop in the long future in China and the environmental impact of the industry is greatly concerned about. In this study, a "cradle to gate" life cycle assessment of CTM, CGTM and NTM is conducted based on the Gabi education 6.0 software. The results suggest that CTM has a much more severe integrated impact, 2.0-3.4 times of the other two routes. In CTM route, environmental burden from synthetic gas production stage contributes most, while the methanol production stage is the major contributor to the burden in both CGTM and NTM routes. Notably, for the three methanol routes, 73.33% -78.50% of integrated impact put damage on the ecosystem. In addition, electricity has been found as the most sensitive parameter. And after power optimization, the integrated impact with 100% electricity generated from clean energy, could be reduced by 82.2%, 66.5% and 83.5% in CTM, CGTM and NTM routes, respectively. The CTM exhibits the largest reduction potential. From estimation, if 100% specific electricity from hydropower/winduclear is adopted in CTM, its environmental impact is nearly equivalent with that of CGTM route. Meanwhile, CTM route with 100% application of clean energy based electricity will be competitive to CGTM and NTM routes with coal-based electricity matched. Therefore, it could be effective by adjusting its technique structure and/or the intelligent use of clean energy based power to realize the objective of cleaner production and sustainable development for methanol industry, not only in China, but also in other countries in the world. (C) 2019 Elsevier Ltd. All rights reserved.
机译:中国是世界上最大的甲醇生产国和消费国。甲醇行业在中国的长远未来将持续发展,该行业对环境的影响备受关注。在这项研究中,基于Gabi education 6.0软件对CTM,CGTM和NTM进行了“从摇篮到大门”的生命周期评估。结果表明,CTM的综合影响要严重得多,是其他两条路线的2.0-3.4倍。在CTM路线中,来自合成气生产阶段的环境负担贡献最大,而在CGTM和NTM路线中,甲醇生产阶段是造成负担的主要因素。值得注意的是,对于三种甲醇路线,综合影响的73.33%-78.50%对生态系统造成了破坏。另外,已经发现电是最敏感的参数。在优化功率后,CTM,CGTM和NTM路线的清洁能源产生的100%电能的综合影响可以分别降低82.2%,66.5%和83.5%。 CTM具有最大的还原潜力。根据估算,如果CTM采用100%来自水电/风/核的比电,其环境影响几乎与CGTM路线相当。同时,使用100%清洁能源电力的CTM路线将与匹配煤炭电力的CGTM和NTM路线竞争。因此,通过调整其技术结构和/或基于清洁能源的电力的智能使用来实现甲醇工业的清洁生产和可持续发展的目标,不仅在中国,而且在世界其他国家也可能是有效的。 (C)2019 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Journal of Cleaner Production》 |2019年第20期|408-416|共9页
  • 作者单位

    Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China|Univ Chinese Acad Sci, Beijing 100000, Peoples R China;

    Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China;

    Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China;

    Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China|Chinese Acad Sci, Ctr Excellence Urban Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China|ShanghaiTech Univ, 100 Haike Rd, Shanghai 201210, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Methanol production; Life cycle assessment; Integrated impact; Power optimization;

    机译:甲醇生产;生命周期评估;综合影响;功率优化;

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