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首页> 外文期刊>Energy Conversion & Management >System development and environmental performance analysis of a solar- driven supercritical water gasification pilot plant for hydrogen production using life cycle assessment approach
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System development and environmental performance analysis of a solar- driven supercritical water gasification pilot plant for hydrogen production using life cycle assessment approach

机译：使用生命周期评估方法的太阳能驱动超临界水气化中试装置用于制氢的系统开发和环境性能分析

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摘要

Supercritical water gasification (SCWG) of biomass is a promising technology for hydrogen production. A novel pilot plant of SCWG that uses solar energy (henceforth SCWG-Solar) was constructed in State Key Laboratory of Multiphase Flow in Power Engineering to take SCWG a significant step closer to industrialization. The total throughput of biomass and water was designed up to 1 t/h. Life cycle assessment (LCA) was conducted to evaluate the environmental performance of SCWG-Solar process and its main environmental burdens. LCA was conducted using the SimaPro V8.2.3 software, and the Ecoinvent 3.0 database within the program. A sensitivity analysis on crucial parameters was performed to determine the environmental performance enhancement of SCWG-Solar process. LCA results showed that the SCWG-Solar system operation contributes approximately 58% to the total environmental impact. The construction of a solar concentrator mostly contributes to the environment emissions from the construction of the SCWG-Solar system. The environmental impact can be reduced by utilizing solar energy heated preheater and combining suitable post-treatment technologies of methane by-products with the SCWG-Solar system. The GWP decreases with the increase of feeding biomass slurry concentration and the GWP is close to a minimum when the biomass concentration reaches 30 wt%. GWP from the SCWG-Solar operation, which is 4.41 kg CO2-eq/kgH(2) for 1-MC process, is comparable to the solar based hydrogen production by two-step water splitting. Hence, the LCA in this study indicates that the SCWG-Solar is an environmentally friendly technology, although the system still has room for improvement.
机译：生物质的超临界水气化（SCWG）是一种有前途的制氢技术。在电力工程多相流国家重点实验室建造了一个使用太阳能的新型SCWG中试工厂（以下简称SCWG-Solar），这使SCWG向着工业化迈出了重要一步。设计的生物质和水的总产量高达1吨/小时。进行了生命周期评估（LCA）以评估SCWG-Solar工艺的环境绩效及其主要环境负担。使用SimaPro V8.2.3软件和程序中的Ecoinvent 3.0数据库进行了LCA。对关键参数进行了敏感性分析，以确定SCWG-Solar工艺的环境性能提高。 LCA结果表明，SCWG-Solar系统的运行对整个环境的影响约为58％。太阳能集中器的建造主要是通过SCWG-Solar系统的建造而导致的环境排放。通过使用太阳能加热的预热器并将甲烷副产品的合适后处理技术与SCWG-Solar系统相结合，可以减少对环境的影响。随着进料生物质浆料浓度的增加，GWP降低，当生物质浓度达到30wt％时，GWP接近最小值。 SCWG-Solar作业的全球升温潜能值为1-MC的过程为4.41 kg CO2-eq / kgH（2），可与两步分水的太阳能制氢相媲美。因此，本研究中的LCA表明，SCWG-Solar是一项环保技术，尽管该系统仍有改进的空间。

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  • 来源
    《Energy Conversion & Management》 |2019年第3期|60-73|共14页
  • 作者

    Chen Jingwei; Xu Wenwen; Zuo Hongyan; Wu Xiaomin; E Jiaqiang; Wang Taosheng; Zhang Feng; Lu Na;

  • 作者单位

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China|Purdue Univ, Sustainable Mat & Renewable Technol SMART Lab, Lyles Sch Civil Engn, W Lafayette, IN 47907 USA;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

    Hunan Int Econ Univ, Business Sch, Changsha 410205, Hunan, Peoples R China;

    Natl Univ Def Technol, Coll Liberal Arts & Sci, Changsha 410073, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

    Hunan Int Econ Univ, Business Sch, Changsha 410205, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

    Purdue Univ, Sustainable Mat & Renewable Technol SMART Lab, Lyles Sch Civil Engn, W Lafayette, IN 47907 USA|Purdue Univ, Mat Engn & Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biomass; Solar energy; Hydrogen production; Supercritical water; Pilot plant; Life cycle assessment;

    机译：生物质;太阳能;制氢;超临界水;中试厂;生命周期评估;

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