...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Science of the Total Environment >Carbon and energy footprint of the hydrate-based biogas upgrading process integrated with CO_2 valorization
【24h】

Carbon and energy footprint of the hydrate-based biogas upgrading process integrated with CO_2 valorization

机译：基于水合物的沼气提质工艺与CO_2增值相结合的碳和能源足迹

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

AbstractThe present paper aims at assessing the carbon and energy footprint of an energy process, in which the energy excess from intermittent renewable sources is used to produce hydrogen which reacts with the CO2previously separated from an innovative biogas upgrading process. The process integrates a hydrate-based biogas upgrading section and a CO2methanation section, to produce biomethane from the biogas enrichment and synthetic methane from the CO2methanation. Clathrate hydrates are crystalline compounds, formed by gas enclathrated in cages of water molecules and are applied to the selective separation of CO2from biogas mixtures. Data from the experimental setup were analyzed in order to evaluate the green-house gas emissions (carbon footprint CF) and the primary energy consumption (energy footprint EF) associated to the two sections of the process. The biosynthetic methane production during a single-stage process was 0.962Nm3, obtained mixing 0.830Nm3of methane-enriched biogas and 0.132Nm3of synthetic methane. The final volume composition was: 73.82% CH4, 19.47% CO2, 0.67% H2, 1.98% O2, 4.06% N2and the energy content was 28.0MJ/Nm3. The functional unit is the unitary amount of produced biosynthetic methane in Nm3. Carbon and energy footprints are 0.7081kgCO2eq/Nm3and 28.55MJ/Nm3, respectively, when the electric energy required by the process is provided by photovoltaic panels. In this scenario, the overall energy efficiency is about 0.82, higher than the worldwide average energy efficiency for fossil methane, which is 0.75.Graphical abstractDisplay Omitted
机译： 摘要 本文旨在评估能源过程的碳和能源足迹，其中间歇性可再生资源的过剩能量用于产生氢气，该氢气与以前从创新性沼气提纯过程中分离出来的CO 2 反应。该工艺集成了一个基于水合物的沼气提纯段和一个CO 2 甲烷化段，以从沼气浓缩物中生产沼气，并从CO 2 甲烷化。笼形水合物是结晶化合物，由包裹在水分子笼中的气体形成，用于从沼气混合物中选择性分离CO 2 。分析来自实验装置的数据，以评估与该过程的两个部分相关的温室气体排放量（碳足迹CF）和一次能源消耗（能源足迹EF）。单阶段过程中的生物合成甲烷产量为0.962Nm 3 ，混合后可得到0.830Nm 3 富含甲烷的沼气和0.132Nm 3 合成甲烷。最终体积组成为：73.82％CH 4 ，19.47％CO 2 ，0.67％ H 2 ，1.98％O 2 ，4.06％N 2 ，能量含量为28.0MJ / Nm 3 。功能单位是在Nm 3 中产生的生物合成甲烷的单位量。碳和能源足迹为0.7081kgCO 2eq / Nm 3 和28.55MJ / Nm 3 分别由光伏面板提供过程所需的电能。在这种情况下，整体能源效率约为0.82，高于化石甲烷的全球平均能源效率0.75。 < ce：abstract xmlns：ce =“ http://www.elsevier.com/xml/common/dtd” xmlns =“ http://www.elsevier.com/xml/ja/dtd” id =“ ab0010” class = “ graphical” xml：lang =“ zh-cn” view =“ all”> 图形摘要 省略显示

著录项

  • 来源
    《The Science of the Total Environment》 |2018年第15期|404-411|共8页
  • 作者

    Beatrice Castellani; Sara Rinaldi; Emanuele Bonamente; Andrea Nicolini; Federico Rossi; Franco Cotana;

  • 作者单位

    CIRIAF – Interuniversity Research Center on Pollution and Environment, University of Perugia,Department of Engineering, University of Perugia;

    CIRIAF – Interuniversity Research Center on Pollution and Environment, University of Perugia;

    CIRIAF – Interuniversity Research Center on Pollution and Environment, University of Perugia,Department of Engineering, University of Perugia;

    CIRIAF – Interuniversity Research Center on Pollution and Environment, University of Perugia,Department of Engineering, University of Perugia;

    CIRIAF – Interuniversity Research Center on Pollution and Environment, University of Perugia,Department of Engineering, University of Perugia;

    CIRIAF – Interuniversity Research Center on Pollution and Environment, University of Perugia,Department of Engineering, University of Perugia;

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

    Carbon footprint; Energy footprint; Biogas upgrading; Clathrate hydrates; CO2methanation; LCA;

    机译：碳足迹;能源足迹;沼气提质;水合物水合物;CO2甲烷化;LCA;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号