Techno-Economic Analysis of Co-Producing Green Methanol and Green Formic Acid via Synergistic Integration of Biomass Gasification with CO_(2)Electro-ReductionOA
The transformation of the global energy landscape and the shortage of traditional fuels are driving the utilization of biomass.This study proposes a novel system for the co-production of green methanol and green formic acid by synergistically integrating biomass gasification with CO_(2)electro-reduction.The system model,developed using Aspen Plus with key units like the entrained-flow gasifier and a CO_(2)electro-reductioncell model.was evaluated from thermodynamic and economic perspectives.Results demonstrate that with 25%of the captured CO_(2)directed to electro-reduction,the system processing 14150 t of biomass annually achieves remarkable energy and exergy efficiencies of 45.5%and 46.8%,respectively.It produces 6220 t of methanol and1555 t of formic acid per year.The methanol production cost is 237.7 USD/t,with a payback period of 6.9 years.Equipment cost analysis shows the gasifier,air separation unit,and heat exchangers are the primary investments.Furthermore,a critical CO_(2)consumption ratio of 36.62%is identified,minimizing the payback period to 6.05years,while energy efficiency monotonically decreases with a higher ratio due to increased purification duty.This work provides a valuable framework for efficient and flexible co-production of green fuels and chemicals,supporting the advancement of dual-carbon goals.
CAO Xiaochuang;ZHANG Hanfei;SUN Mingjia;LI Jin;LIU Luyao;Arianna BALDINELLI;DUAN Liqiang;FAN Jihong;Umberto DESIDERI
Institute of Energy Power Innovation,North China Electric Power University,Beijing 102206,China School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,ChinaSchool of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,ChinaSchool of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,ChinaSchool of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,ChinaSchool of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,ChinaDepartment of Energy,Systems,Territory and Constructions Engineering,University of Pisa,Pisa I56126,ItalySchool of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,ChinaInstitute of Energy Power Innovation,North China Electric Power University,Beijing 102206,ChinaDepartment of Energy,Systems,Territory and Constructions Engineering,University of Pisa,Pisa I56126,Italy
化学化工
biomass gasificationentrained-flow gasifierCO_(2)electro-reduction cellmethanol synthesisformic acid synthesis
《Journal of Thermal Science》 2026 (4)
P.1380-1394,15
supported by the Major Program of the National Natural Science Foundation of China(No.52090064)the group of industrial process and energy engineering of EPFLthe group of thermal engines and energy systems of UNIPI for their support of our research。
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