摘要
燃煤发电是我国火力发电行业最主要的CO_(2)排放来源。CO_(2)捕集是最直接的控制CO_(2)排放措施,其中富氧燃烧技术具有燃烧效率高、CO_(2)纯度高、排烟损失小、设备占地小等优点,但是较高的制氧成本制约了富氧燃烧技术的应用推广。文章提出了基于“富氧燃烧”的碳-氢-风-光-电耦合模型,以富氧燃烧的CO_(2)捕集技术为基础,以氧气的制取、供应和利用为媒介,以水电解制氢行业为依托,构织新能源-传统能源深度融合的CO_(2)减排体系。基于“富氧燃烧”模式的碳-氢-风-光-电耦合模型应用场景具有显著的经济效益和环境效益:(1)耦合模型应用场景可以有效降低CO_(2)排放量,提升新能源的消纳能力。(2)宏观层面可有效避免搁浅成本,降低实现“双碳”目标的经济成本;微观层面可以提高锅炉燃烧效率,降低“绿氢”成本。(3)具有显著的环境效益,能够有效降低锅炉污染物排放。建议通过项目示范和工程实践进一步验证耦合模型的科学性和可行性,从科技创新和成本平价入手,促进技术产业化和商业化应用。
Coal-fired power generation is China's thermal power sector's primary source of CO_(2) emissions.CO_(2) capture is the most direct measure to control CO_(2) emissions.Oxygen-enriched combustion technology has the advantages of high combustion efficiency,high CO_(2) purity,slight flue gas loss,and small equipment area,but the high cost of oxygen production limits the application popularization of oxygen-enriched combustion technology.The article proposes a coupled carbon-hydrogen-wind-light-electric model based on"oxygen-enriched combustion".Based on the CO_(2) capture technology of"oxygen-enriched combustion",taking the production,supply,and use of oxygen as the medium,and relying on the water electrolysis and hydrogen production industries,the paper composes a CO_(2) reduction system with deep integration of new and traditional energy sources.The application scenario of the coupled carbon-hydrogen-wind-light-electricity model based on the"oxygen-enriched combustion"model has significant economic and environmental benefits:①The application scenario of the coupled model can effectively reduce CO_(2) emissions and enhance the consumption capacity of new energy resources.②At the macro level,it can effectively avoid stranded costs and reduce the economic cost of achieving the dual carbon target.At the micro level,it can improve the boiler combustion efficiency and reduce the cost of"green hydrogen".③It has significant environmental benefits and can effectively reduce boiler pollutant emissions.The article suggests that,the science and feasibility of the coupling model can be further verified through project demonstration and engineering practice,and that the industrialization and commercialization of the technology application can be promoted based on technological innovation and cost parity.
作者
张全斌
周琼芳
ZHANG Quanbin;ZHOU Qiongfang(Zhejiang Provincial Energy Group Company Ltd.,Hangzhou 310007,China;China Energy Engineering Group Zhejiang Electric Power Design Institute Co.Ltd.,Hangzhou 310012,China)
出处
《中国国土资源经济》
2023年第12期10-17,共8页
Natural Resource Economics of China
基金
浙江省能源集团有限公司战略研究项目:浙能集团“十四五”能源产业发展规模与结构研究(ZN-ZL-2021-012)。
关键词
CO_(2)捕集
富氧燃烧
耦合
氢能
风电
光电
燃煤电厂
CO_(2)capture
oxygen-enriched combustion
coupling
hydrogen energy
wind power
photovoltaic
coal-fired power plants
