CECO Peerless Emission Reduction
Solutions for Combined Cycle (HRSG)
Repower Project

LOCATION: Midwest USA
YEAR BUILT: 2018, 2019 and 2020

PROJECT DESCRIPTION:

As part of a customer’s repower project, CECO Peerless was contracted to upgrade the emissions control system for a 3 x 1 combined cycle plant whose existing separate CO/VOC oxidation and SCR (DeNOx) systems were insufficient for the increased exhaust flow and higher inlet emissions expected from the repowered combustion turbine-HRSG.

PERFORMANCE AT INITIAL START-UP:

• NOx outlet <2ppmvd@15% O2 (95%+ reduction)
• NH3 Slip <5ppmvd@15% O2
• CO <1ppmvd@15% O2
• VOC <1ppmvd@15% O2

CUSTOMER BENEFITS:

• CECO Peerless experience in turnkey retrofits and highperformance emissions retrofits on HRSGs
• CECO Peerless ability to execute quickly: the first unit was installed complete in less than 14 weeks from purchase order
• Lower pressure-drop of the new multi-pollutant catalyst (1 layer) versus separate catalyst layers
• Increased performance efficiency for greater reliability
• Plant operational flexibility with improved emissions system