Hydrogen production from coal-derived syngas undergoing high-temperature water gas shift reaction in a membrane reactor

Reiyu Chein, Wei Hsin Chen

研究成果: Article

摘要

In this study, a numerical model to predict the hydrogen production from water-gas shift reaction using coal-derived syngas as a feedstock was presented. The reaction was carried out in a palladium (Pd)-based membrane reactor operated at 900°C for yielding carbon monoxide (CO) conversion higher than the thermodynamic equilibrium limit. The sweep gas flow, membrane permeance, and steam-to-carbon ratio effects on the reactor performance were examined. Based on the obtained results, it was found that high CO conversion and hydrogen (H2) recovery were obtained when the reactor was operated in counter-flow mode and with high sweep gas flow rate, steam-to-carbon ratio, and membrane permeance. However, the H2S-to-H2 ratio in the reactor was found to increase with the CO conversion and can be higher than the thermodynamic limit for Pd sulfidization. Optimum operation parameters should be sought for obtaining high CO conversion and H2 recovery while preventing membrane failure due to Pd sulfidization.

原文English
頁(從 - 到)2940-2952
頁數13
期刊International Journal of Energy Research
42
發行號9
DOIs
出版狀態Published - 2018 七月

指紋

Water gas shift
Hydrogen production
Carbon monoxide
Coal
Palladium
Membranes
Flow of gases
Steam
Thermodynamics
Recovery
Temperature
Carbon
Feedstocks
Numerical models
Flow rate
Hydrogen

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

引用此文

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