氢能耦合替代燃料悬浮煅烧水泥技术研究  

Research on Hydrogen Energy Coupling Alternative Fuel Suspension Calcination Cement Technology

作　　者：马娇媚[1] 彭学平[1] 范道荣 王佳硕 杨欢迎 MA Jiaomei;PENG Xueping;FAN Daorong;WANG Jiashuo;YANG Huanying(Tianjin Cement Industry Design&Research Institute Co.,Ltd.,Tianjin 300400,China)

机构地区：[1]天津水泥工业设计研究院有限公司,天津300400

出　　处：《水泥技术》2024年第6期7-14,共8页Cement Technology

基　　金：中国建材集团有限公司关键核心技术攻关第一批“揭榜挂帅”项目(2021HX0203);中国建筑材料联合会首批全国建材行业重大科技攻关“揭榜挂帅”项目(20221JBGS01-01)。

摘　　要：氢能替代化石燃料煅烧水泥熟料是水泥行业节能降碳的有效途径。文章基于热工理论计算,分析了氢气等不同燃料的理论煅烧温度和烟气量,搭建了模拟分解炉煅烧状态的悬浮煅烧小试实验平台,分析验证了氢能替代化石燃料煅烧水泥熟料的可行性。结果表明,在同等热耗条件下,相对常规燃料,氢燃料未明显增加理论烟气量,氢能掺烧烟煤粉或稻壳粉对降低悬浮煅烧时的CO和NOX有正向作用,能够促进劣质燃料的使用;同时,氢能作为低碳燃料,能够进一步发挥其高活性作用,解决当前替代燃料在分解炉中不完全燃烧和NOX本底排放浓度高的技术瓶颈。根据实验结果,针对减少化石燃料消耗及碳减排需求,提出了20%氢能耦合60%替代燃料煅烧水泥熟料的工业化技术路线,此路线在应用于实际工程前,需进行更加深入的中试研究。Hydrogen energy replacing fossil fuel to calcine cement clinker is an effective way to save energy and reduce carbon emission in cement industry.Based on the theoretical calculation of thermal engineering,the theoretical combustion temperature and gas volume of different fuels such as hydrogen were analyzed,and a small suspension calcining test platform was built to simulate the combustion state of the calciner,and the feasibility of hydrogen energy replacing fossil fuels in calcining cement clinker was analyzed and verified.Results show that hydrogen has no additional theoretical gas volume compared to conventional fuel.Hydrogen-enriched combustion of coal or alternative fuels has a positive effect on reducing CO and NOX in suspension calcination,thus promoting the utilization of inferior fuel.As a low-carbon fuel,Hydrogen can further play a high activity to solve the technical bottleneck of incomplete combustion and high NOX background emission of alternative fuel in the calciner.According to the experimental results,for reducing fossil fuel consumption and carbon emission,the industrialization technical route of 20%hydrogen energy coupled with 60%alternative fuel is proposed to calcine cement clinker.Before this route is applied to practical projects,more indepth pilot study is needed.

关 键 词：氢能耦合 替代燃料 悬浮煅烧 高活性 碳减排 

分 类 号：TQ172.6[化学工程—水泥工业]