Hydrogen-rich gas with low-level CO produced with autothermal methanol reforming providing a real-time supply used to drive a kW-scale PEMFC system

Wei Cheng Chiu, Shuhn Shyurng Hou, Chen Yu Chen, Wei Hsiang Lai, Rong Fang Horng

研究成果: Article同行評審

摘要

An integrated system was developed to produce hydrogen-rich gas with low-level CO via autothermal reforming (ATR) of methanol for the purpose of real-time use in a kW-scale proton exchange membrane fuel cell (PEMFC) system. Methanol was converted into a hydrogen-rich gas through ATR in conjunction with water gas shifting (WGS) and preferential oxidation (PrOX) reactors to reduce the CO concentration. A 29.5% hydrogen-rich gas with a CO concentration of approximately 20 ppm was achieved under the optimal parameter settings (i.e., an H2O/CH3OH ratio = 0.5 and an O2/CH3OH ratio = 0.55 for the ATR reaction, an H2O/CO ratio = 5.6 for the WGS reaction, and an O2/CO ratio = 1.08 for the PrOX reaction). Specifically, the reformer system steadily produced low CO, hydrogen-rich gas after 4 h of durability testing. This system was then combined with 40-cell fuel cell stacks with air bleeding and tested for its durability over a period of 6 h. It was verified that the hydrogen-rich gas produced by the reformer system enabled the fuel cell to steadily generate 1040 W of power. Notably, the hydrogen-rich gas (the actual reformate gas) produced herein could generate better performance than the simulated reformate gas reported in the literature.

原文English
文章編號122267
期刊Energy
239
DOIs
出版狀態Published - 2022 1月 15

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造
  • 建模與模擬
  • 可再生能源、永續發展與環境
  • 燃料技術
  • 能源工程與電力技術
  • 污染
  • 能源(全部)
  • 機械工業
  • 工業與製造工程
  • 管理、監督、政策法律
  • 電氣與電子工程

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