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Invensys optimization benefits include:
Pre-Combustion
– Coal / Fuel Blending Optimization – 1-2% production increase
– Mill Optimization – lower LOI, heat rate improvement, pluggage detection
Combustion
– NOx Reduction – 10-30%
– Heat Rate Improvement – 0.25–1.5%
– Dynamic Steam Temperature Control – +/- 1%, reduce steam turbine cyclic life expenditure
– Ramp Rate Improvement – up to 100%
– Intelligent Soot-blowing – up to 0.25% heat rate improvement, lower equivalent forced outage rate (EFOR)
– LOI Reduction – 10-30%
Post-Combustion
– SCR’s – Reduce NH3 slip; Lower capital equipment costs; 2% additional reduction in NOx
– FGD’s – Increase SO2 removal efficiency with less limestone consumption. |
