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Research Field

Research Field
  • H2 Production
  • CO2 Utilization
  • Resources Upcycling
  • Projects

H2 Production

Steam reforming of CH4
CH4 + H2O → 2H2 + 2CO

(∆H = +206 kJ/mol): Endothermic reaction

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Strong endothermic reaction → Reaction temperature (inlet of bed) decrease (~600 °C)
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Boudouard reaction (2CO → C + CO2, ∆H = –172 kJ/mol)
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Catalyst deactivation caused by coke formation
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Development of stable catalyst with coke-resistance is required

Water-gas shift reaction
of synthesis gas
 CO + H2O → H2 + CO2

(∆H = -41 kJ/mol): Exothermic reaction

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Large-scale H2 production technology is already commercialized
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However, the researches about compact-sized reformers for
decentralized/on-site H2 production are still ongoing
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For the compact-sized reformers, integration of HT-WGS & LT-WGS
reaction is required → Single stage WGS
- Operation temperature = 240 ~ 320 °C (middle temperature)
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Miniaturization of reformer size → High processing capacity
- Commercial catalysts are customized to low processing capacity
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Development of catalyst with high activity for single stage WGS
which can be used in high processing capacity is required

Contact
yllee@kmu.ac.kr
Department of Chemical Engineering, Keimyung University, Dalgubeoldaero 1095, Dalseo-Gu, Daegu, Republic of Korea
대구광역시 달서구 달구벌대로 1095 계명대학교 화학공학전공, 공과대학 3호관 3319호

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