摘要
为响应国家“十四五”规划及“双碳”政策,促进水泥工业节能减排。以某4 000 t/d水泥生产线在煅烧阶段采用含氧量30%的富氧气体助燃为例,建立数学模型,对其进行经济效益和环境效益分析。同时,探索了年投入氧气成本、年总收益及年CO_2排放量对制氧成本及富氧空气含氧量等因素的敏感性程度。结果表明:使用富氧燃烧技术对水泥生产过程的节能减排具有技术可行性;当富氧空气中的含氧量达到30%时,节约煤耗9 280 t/a,节约煤成本达到969.76万元/a,总收益达到551.36万元/a,减排CO_219 024 t/a,具有良好的节能效益、经济效益和环境效益;且经济效益与制氧成本及富氧空气含氧量成反比,环境效益与富氧空气含氧量成正比。该技术符合国家“双碳”政策,有助于实现水泥行业的节能减排。
In response to the national"14th Five-Year Plan"and"double carbon"policy to promote energy conservation and emission reduction in the cement industry.Taking a 4000 t/d cement production line in calcination stage using oxygen-rich gas with oxygen content of 30%as an example,a mathematical model was established to analyze its economic and environmental benefits.At the same time,the sensitivity of annual input oxygen cost,annual total income and annual CO2 emission to oxygen production cost and oxygen content of oxygen-rich air was explored.The results show that it is technically feasible to use oxygen-enriched combustion technology to save energy and reduce emission in cement production.When the O2 content in oxygen-rich air reaches 30%,the annual coal consumption is 9280 tons,the annual coal saving cost is 9.6976 million yuan,the annual total income is 5.5136 million yuan,and the annual emission reduction is 19024 tons of CO2,it has good energy saving benefits,economic benefits and environmental benefits;the economic benefit is inversely proportional to the cost of producing oxygen and the oxygen content of oxygen-rich air,and the environmental benefit is proportional to the oxygen content of oxygen-rich air.The technology conforms to the national"double carbon"policy and helps to achieve energy conservation and emission reduction in the cement industry.
作者
朱思彤
李志涛
刘强强
ZHU Sitong;LI Zhitao;LIU Qiangqiang(Power China Jiangxi Electric Power Construction Co.,Ltd.,Nanchang 330001,China)
出处
《能源研究与管理》
2024年第3期160-165,共6页
Energy Research and Management
关键词
水泥
回转窑
富氧燃烧技术
节能
降碳
cement
rotary kiln
oxygen-rich combustion technology
energy conservation
reduce carbon dioxide
