基于湿发酵CSTR工艺的生物天然气项目运营成本构成及敏感性分析OA

Driven by"dual carbon"strategic,industrialization process of bio-natural gas,as an important pathway for efficient conver-sion and clean utilization of biomass energy,has accelerated significantly.A comprehensive review of mainstream biogas production technologies was conducted.A multidimensional full life cycle cost estimation model was developed based on literature research and ex-pert consultation,and empirical analysis was performed using typical project cases.Research results indicated that bio-natural gas pro-duction cost exhibited significant structural characteristics,with raw material costs(accounting for 45%)and energy costs(accounting for 21%)forming core cost components.After deducting income from organic fertilizer by-products,comprehensive cost per unit product was 3.03 yuan/m3,which was 32%～66%higher than conventional natural gas station price.Sensitivity analysis quantitatively identified three key influencing factors:construction investment,organic fertilizer market prices,and raw material procurement price.Model validation showed that through intensive raw material collection and storage,increased domestic equipment localization level,and optimized project scale,overall production costs could be reduced by 15%～25%.Technology-economic evaluation system was constructed to provide a systematic basis for enhancing economic competitiveness of bio-natural gas projects,and offering practical guidance value for promoting industrial scale development.