Exergy analysis of an integrated solid oxide electrolysis cell-methanation reactor for renewable energy storage
作者: Yu LuoXiao-yu WuYixiang ShiAhmed F. GhoniemNingsheng Cai
作者单位: 1Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
2Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
刊名: Applied Energy, 2018, Vol.215 , pp.371-383
来源数据库: Elsevier Journal
DOI: 10.1016/j.apenergy.2018.02.022
关键词: Solid oxide electrolysis cellMethanationExergy analysisH 2 O/CO 2 co-electrolysisIntermediate temperaturePressurizing
英文摘要: Abstract(#br)Renewable power intermittency requires storage for load matching. A system combining a solid oxide electrolysis cell (SOEC) and a methanation reactor (MR) could be an efficient way to convert excess electricity into methane, which can be integrated with the existing natural-gas network. In this paper, a comprehensive exergy analysis is performed for three methane production systems: (i) water electrolysis + Sabatier reactor (SR, CO 2 MR), (ii) H 2 O/CO 2 co-electrolysis + MR, and (iii) a single SOEC-MR reactor, is performed. First, we find that in the case of the water electrolysis + SR system, upon replacing the low-temperature electrolysis cell with SOEC, the exergy efficiency is dramatically increased by 11% points of percentage at current densities higher that 8000 A m −2...
全文获取路径: Elsevier  (合作)
影响因子:4.781 (2012)

  • reactor 反应器
  • electrolysis 电解
  • analysis 分析
  • solid 固体
  • methanation 甲烷化作用
  • renewable 可更新的
  • temperature 温度
  • oxide 氧化物
  • integrated 综[组,复]合
  • energy 能量