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热力发电  2013 

烟气参数对选择性催化还原系统设计的影响分析

, PP. 124-127

Keywords: scr,脱硝设计,烟气参数,飞灰特性,催化剂,堵塞

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Abstract:

飞灰堵塞及对催化剂的物理冲蚀是造成脱硝装置性能恶化的最主要原因。对比2个选择性催化还原(scr)烟气脱硝工艺设计案例,分析烟气流量、飞灰特性等参数在装置设计中的重要性。指出在对锅炉进行scr脱硝改造设计时,应事先获得烟气流量、温度、飞灰含量、粒度分布及矿物组成等特性参数,并根据飞灰特性,着重于优化除灰、防堆积及防冲蚀磨损的设计。

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