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<p>The present study reports on the energy-efficient steam reforming of a bio-oil model compound, comparing conventional steam reforming (CSR) and sorption-enhanced steam reforming (SESR). Steam reforming processes are highly endothermic and require significant amounts of heat energy. Also, the reformer products and waste gases carry away substantial heat energy, which waste heat recovery systems could utilize. This approach reduces the overall energy demand and improves energy efficiency. Acetic acid is used to represent bio-oil, as it constitutes a major component of bio-oil and helps avoid complexity in the analysis. The reforming of the bio-oil model compound has been studied across a range of parameters for both methods to optimize the reforming processes. SESR employs a sorbent to capture CO<sub>2</sub>, enhancing both hydrogen production and purity. The reformer temperature ranges from 300 to 900&#xa0;°C, with a steam-to-carbon molar ratio (SCMR) varying from 1 to 4 for both reforming processes. Hydrogen purity in SESR increased to 99.5% when the sorbent-to-carbon molar ratio was set to 1. The net energy demand per mole of hydrogen production has been reduced by up to 24.58% for CSR and by up to 25.91% for SESR using waste heat recovery systems.</p>

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Energy-Efficient-Augmented Sorption-Enhanced Reforming for H2 Production from Bio-oil Model Compound

  • 期刊论文

  • 发表日期：

    2025年3月6日

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  • Helal Ahmad Farhan,
  • Sanjay

摘要

The present study reports on the energy-efficient steam reforming of a bio-oil model compound, comparing conventional steam reforming (CSR) and sorption-enhanced steam reforming (SESR). Steam reforming processes are highly endothermic and require significant amounts of heat energy. Also, the reformer products and waste gases carry away substantial heat energy, which waste heat recovery systems could utilize. This approach reduces the overall energy demand and improves energy efficiency. Acetic acid is used to represent bio-oil, as it constitutes a major component of bio-oil and helps avoid complexity in the analysis. The reforming of the bio-oil model compound has been studied across a range of parameters for both methods to optimize the reforming processes. SESR employs a sorbent to capture CO2, enhancing both hydrogen production and purity. The reformer temperature ranges from 300 to 900 °C, with a steam-to-carbon molar ratio (SCMR) varying from 1 to 4 for both reforming processes. Hydrogen purity in SESR increased to 99.5% when the sorbent-to-carbon molar ratio was set to 1. The net energy demand per mole of hydrogen production has been reduced by up to 24.58% for CSR and by up to 25.91% for SESR using waste heat recovery systems.