农业工程2026，Vol.16Issue(1)：70-76,7.DOI:10.19998/j.cnki.2095-1795.202506033
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
Operating costs structure and sensitivity analysis for bio-natural gas projects based on wet fermentation CSTR process
摘要
Abstract
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.关键词
生物天然气/湿发酵CSTR工艺/生产成本/敏感性因素/制备成本/降本路径Key words
bio-natural gas/wet fermentation CSTR process/production costs/sensitivity factors/preparation cost/important initiatives分类
农业科技引用本文复制引用
冉龙飞,高丽娟,柴宝华..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[J].农业工程,2026,16(1):70-76,7.基金项目
国家重点研发计划项目(2023YFD171405) （2023YFD171405）
