RESEARCH ON GHG ABATEMENT POTENTIAL OF DIFFERENT GENERATION BIOETHANOL PROJECTS

Men Jijun; Li Hongshen; Chu Jiepu; Wei Li; Li Shizhong

doi:10.19912/j.0254-0096.tynxb.2025-0208

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (6) : 474-481. DOI: 10.19912/j.0254-0096.tynxb.2025-0208

RESEARCH ON GHG ABATEMENT POTENTIAL OF DIFFERENT GENERATION BIOETHANOL PROJECTS

Men Jijun^1,2, Li Hongshen^1,3, Chu Jiepu², Wei Li³, Li Shizhong³

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Abstract

The project boundary,baseline emissions and project emissions of fuel ethanol projects were defined. The greenhouse gas （GHG） emission of 3 generations of bioethanol projects,including corn liquid fermentation,sweet sorghum solid fermentation and cellulose hydrolysis fermentation were analyzed. By introducing a secondary emission reduction accounting system for the resource utilization of by-products, the maximum carbon emission reduction potential of each generation of bioethanol processes was systematically revealed. The results show that the sweet sorghum solid-state fermentation has the highest carbon emission reduction potential, with the maximum theoretical 5.14 ton CO₂e GHG abatement per ton of ethanol production. Cellulosic ethanol has greater carbon negative potential under the background of technological progress.

Key words

biomass energy / bioethanol / solid state fermentation / GHG mitigation / biocarbon capture and storage / carbon emission reduction potential

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Men Jijun, Li Hongshen, Chu Jiepu, Wei Li, Li Shizhong. RESEARCH ON GHG ABATEMENT POTENTIAL OF DIFFERENT GENERATION BIOETHANOL PROJECTS[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 474-481 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0208

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