Hydrogen-rich syngas production of urea blended with biobutanol by a thermodynamic analysis

Ke Wei Lin, Horng-Wen Wu

Research output: Contribution to journalArticle

Abstract

Both biobutanol and urea are the environment-friendly hydrogen carrier. This study is to compare hydrogen production between steam reforming of biobutanol and autothermal reforming of biobutanol feed using pure steam and vaporization of aqueous urea (VAU) by a thermodynamic analysis. Hydrogen-rich syngas production, carbon formation, thermal neutral temperature (TNT), and hydrogen production cost are analyzed in both steam reforming and autothermal reforming. The results show that hydrogen-rich syngas production with the use of VAU is higher than that with pure steam not only in steam reforming but also in autothermal reforming. When the VAU/butanol molar ratio is 8, and the O2/butanol molar ratio equals 3, the reforming efficiency reaches up to 81.42%. At the same condition, the hydrogen production cost is lower than that without blending urea. Therefore, using VAU to replace pure steam in biobutanol reforming leads to benefits of increasing the hydrogen-rich syngas yield and lowering cost.

Original languageEnglish
Pages (from-to)17562-17573
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number37
DOIs
Publication statusPublished - 2018 Sep 13

Fingerprint

synthesis gas
ureas
Urea
steam
Reforming reactions
Thermodynamics
Vaporization
Hydrogen
thermodynamics
Steam reforming
hydrogen production
hydrogen
Hydrogen production
production costs
Steam
Butenes
Costs
costs
Carbon
carbon

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

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abstract = "Both biobutanol and urea are the environment-friendly hydrogen carrier. This study is to compare hydrogen production between steam reforming of biobutanol and autothermal reforming of biobutanol feed using pure steam and vaporization of aqueous urea (VAU) by a thermodynamic analysis. Hydrogen-rich syngas production, carbon formation, thermal neutral temperature (TNT), and hydrogen production cost are analyzed in both steam reforming and autothermal reforming. The results show that hydrogen-rich syngas production with the use of VAU is higher than that with pure steam not only in steam reforming but also in autothermal reforming. When the VAU/butanol molar ratio is 8, and the O2/butanol molar ratio equals 3, the reforming efficiency reaches up to 81.42{\%}. At the same condition, the hydrogen production cost is lower than that without blending urea. Therefore, using VAU to replace pure steam in biobutanol reforming leads to benefits of increasing the hydrogen-rich syngas yield and lowering cost.",
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Hydrogen-rich syngas production of urea blended with biobutanol by a thermodynamic analysis. / Lin, Ke Wei; Wu, Horng-Wen.

In: International Journal of Hydrogen Energy, Vol. 43, No. 37, 13.09.2018, p. 17562-17573.

Research output: Contribution to journalArticle

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