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    • 2. 发明公开
    • Method for controlling oxidation in flue gas desulfurization
    • 在阿巴斯特里弗弗隆,维尔法赫恩zur Oxidationskontrolle
    • EP1386654A1
    • 2004-02-04
    • EP03024625.0
    • 1997-06-26
    • MITSUBISHI JUKOGYO KABUSHIKI KAISHA
    • Iwashita, KoichiroOkino, SusumuUkawa, NaohikoSakamoto, Masaru
    • B01D53/34G01N27/416
    • B01D53/501B01D53/346Y10S423/05
    • There is provided a method for flue gas desulfurization which is capable of conducting minute control of oxidation and which is capable of maintaining the concentration of sulfurous acid in an absorbent liquid within a proper range in a highly reliable and efficient manner, even in the case where an abrupt change occurs in the operational conditions of the system. In the method for controlling the oxidation in flue gas desulfurization, the value of proportional sensitivity (K) in the feed back control process, which is based primarily on the oxidation-reduction potential (ORP), is increased depending on the deviation (ε) in a region where the detected value (PV) is below the target value (SV) in correspondence with the characteristic change of the oxidation-reduction potential against the concentration of sulfurous acid (PN).
    • 提供了一种烟气脱硫方法,其能够进行微小的氧化控制,并且能够以高度可靠和有效的方式将吸收液中的亚硫酸浓度保持在适当范围内,即使在 系统的运行状况发生突然变化。 在烟气脱硫控制方法中,反馈控制过程中主要依赖氧化还原电位(ORP)的比例灵敏度(K)值取决于偏差(ε), 在与氧化还原电位相对于亚硫酸浓度(PN)的特征变化对应的检测值(PV)低于目标值(SV)的区域中。