本文在深入分析国内已建电站CO2捕获性能及能耗分布特点的基础上,就国内600MW燃煤碳捕获电站普遍存在的能耗高等问题提出了系统集成优化方案.该方案通过汽水系统与脱碳流程的有效集成,实现了余压和中低温热的有效利用,同时降低了化学吸收法脱碳流程对汽水系统安全性的冲击.根据本文的分析,最终可实现现役600MW电厂加入CO2捕获系统后,全厂效率提高4个百分点左右.本文提出的思路和方法,为CO2大规模减排,脱碳电站效率提高提供了一些新的思路和学术见解.
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