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Integration of biomass gasification and MEA-based CO2 capture for sustainable power and methanol production: Energy, exergy, and economic analysis and optimization

Author

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  • Nouri, Amirali
  • Tohidi, Farzad
  • Chitsaz, Ata

Abstract

This study introduces an innovative low-CO2 emission system that integrates biomass gasification, MEA-based CO2 capture, and methanol synthesis for waste-to-energy and power-to-fuel applications. The system generates 75 MW of power, 0.545 kg/s of methanol, and 40 MW of heat, achieving a post-optimization energy efficiency of 53.7 % and an exergy efficiency of 31.91 %. By employing a multi-objective Genetic Algorithm, the system's life cycle cost is reduced from $435.3 million to $399.6 million. Key findings include a CO2 capture effectiveness of 59.24 % and hydrogen production as the primary bottleneck in methanol synthesis. Beyond efficiency, the system offers economic advantages by reducing capital investment compared to separate production methods for hydrogen and methanol. These results highlight the potential of the proposed system to advance sustainable and efficient energy generation, contributing to global green transformation goals.

Suggested Citation

  • Nouri, Amirali & Tohidi, Farzad & Chitsaz, Ata, 2025. "Integration of biomass gasification and MEA-based CO2 capture for sustainable power and methanol production: Energy, exergy, and economic analysis and optimization," Energy, Elsevier, vol. 319(C).
    • Handle: RePEc:eee:energy:v:319:y:2025:i:c:s0360544225007042
    DOI: 10.1016/j.energy.2025.135062
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