Asia Power Week 2017

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Tightened Emission Regulation and its AQCS Solution– Retrofitting Case Study of FGD and ESP (Room Nile 2)

There is a growing need for Air Quality Control System (AQCS) under the situation that regulation on emission has become more stringent all over the world. Especially in Asian nations, the emission regulation is becoming tighter and tighter in recent years. To meet the world lowest level regulation in thermal power plants, Electrostatic Precipitator (ESP) and Flue Gas Desulphurization (FGD) is the key components, and not only each equipment performance but system integration as total AQCS is important. Moreover, when the AQCS retrofitting and/or upgrading are required, system selection will be essential for the robust solutions. At the same time, it is necessary to design the system with many restrictions; especially space constraint in placing new equipment, the range/amount of existing equipment/facility to be reused, etc. This paper introduces ESP and FGD retrofit/upgrade technologies and experiences for world lowest level regulation in existing plants discussing specific cases. It also shares Moving Electrode Electrostatic Precipitator (MEEP) application to minimize the retrofit space, which is a unique technology and new trends of AQCS technologies in the areas of ultra-high efficiency PM removal. These technologies and experiences can satisfy a wide range of requirement and emission regulation in each area.