Vinh Tan 2 Thermal Power Plant – SCR Performance Test – Unit S2

SCR Performance Test:

  • Chugai Technos, having gained the trust of the contractor VCAPITAL Investment and Technology Joint Stock Company, successfully conducted the SCR performance test of the Unit 2:
  • Using a simple, easily assembled equipment system capable of adapting to both horizontal and vertical pipelines, including challenging and confined spaces, the monitoring equipment system complies with the JIS standards of Japan.
  • Scope of Work: Emission gas monitoring, pressure differentials measurement and ammonia consumption survey.
  • Monitoring Parameters: Temperature, pressure, velocity, flow rate, moisture content, gas components (O2, CO2, and N2), NH3 slip concentration; continuous monitoring of NOx-O2 using gas analyzer.
  • Report Content:
    • Basic emission gas parameters.
    • NOx-O2 concentration;
    • NOx removal efficiency;
    • NH3 slip concentration;
    • NH3/NOx molar ratio.
    • Distribution diagram: flow rate, temperature, NOx-O2 and NH3 slip concentration;
    • Comparison of actual measurements with DCS data.
    • Data analysis, overall assessment, and improvement proposals.

Some pictures during the implementation of the project:

Location of measurement holes at the SCR inlet (Eco outlet)

Location of measurement holes at the SCR outlet

Sampling equipment system

NOx-O2 continuous monitoring

NH3 sampling

On-site NH3 analysis