Particulate Matter Continuous Emission Monitoring Systems for Wet and Dry Flue-gas Desulfurisation Applications

The content of this online training session has been certified by the CPD *Certification Service as conforming to continuing professional development principles.

Accurate particulate emission measurement in wet gas stream processes, such as monitoring after wet scrubber abatement systems and processes where the flue gas falls below the dew point or has water droplet presence can be challenging. 

There are essentially two core technologies for monitoring particulate emission concentration with high accuracy in wet stacks: Extractive Light Scatter and Beta Attenuation.  Both are extractive in nature, ie  a sample is drawn continuously from the stack in a representative fashion and passed through the analyser before return to stack.  Extractive Light Scatter technology heats the extracted stack sample to evaporate any residual water droplets, therefore, the sample becomes effectively dry enabling analysis by a standard dry measurement technique.

In addition to wet stack technology reviews, incites into experience and results from operating after different types of Flue-gas Desulfurisation (FGD) with and without Selective Catalytic Reduction (SCR) and sorbent injection will be summarised.  Practical steps in meeting procedural requirements according to the US Standard PS-11 and the European Standard EN 14181 together will also be discussed.

*CPD point allocation up to 60 mins of learing.