Complying with emissions regulations is usually binary. If you're out of compliance, you don't run. Catalysts for nitrogen-oxides (NOx) and carbon-monoxide (CO) emissions compliance don't last forever. And fresh catalyst isn't supplied from the marketplace overnight. Thus, the NOx control system-comprising the gas turbine's performance and exhaust levels, the catalyst itself, the ammonia supply and distribution grid, analyzers, exhaust-flow distribution, and sampling ports and methods-must be regularly monitored, inspected, and tested to anticipate when replacement is necessary
before the unit is out of compliance.
- Big-picture lessons learned
- Sweat the small stuff
- Bid-spec prep
- Visual inspection more