Emissions Control Solutions
Industrial and CHP
Manufacturers, processors and combined heat and power (CHP) facilities rely on Peerless emissions management solutions to control NOx and CO from the boilers, turbines and process equipment that supply their steam and power. From package boilers at food processing plants to recovery boilers at pulp and paper mills and cogeneration units across industrial sites, Peerless engineers both combustion and post-combustion controls for new systems and retrofits.
Reliable Steam and Power. Compliant Emissions.
Applications Peerless Serves
Industrial Package and Field-Erected Boilers
Industrial boilers must meet tight permit limits across a wide load range. At Ingredion’s Argo facility in Bedford Park, Illinois, the plant needed to expand steam capacity by 440 KPPH while meeting a permit of NOx below 10 ppm and CO below 50 ppm from 10 to 110% load. The plant preferred a direct injection system over a conventional vaporizer/decomposition system to save on operating and utility costs. An aqueous ammonia direct injection SCR system, coupled with a multi-pollutant reduction catalyst, held NOx below 10 ppm and CO below 10 ppm with ammonia slip below 10 ppm, a greater than 90% NOx reduction.
Pulp and Paper
Pulp and paper mills run boilers that perform across changing production rates. When a New England paper mill expanded production and needed single-digit emissions, its existing ultra-low-NOx burner struggled. Peerless installed an SCR system using patented Direct Injection technology and low exhaust gas temperature catalysts, optimized the combustion system and converted the mill to a safe urea reagent system. The retrofit achieved ultra-low emissions across a wide range of production rates, with safer operations for plant personnel and low operating costs.
At a pulp and paper mill in Trois-Rivières, Quebec, Peerless supplied four 72 MMBtu gas burner inserts with a sliding air sleeve and a flue gas recirculation (FGR) system at 15% FGR. The system was delivered and commissioned in under six months and met NOx emissions without the need for SNCR.
Peerless low-NOx burners also serve recovery boilers as startup and auxiliary fuel burners.
Combined Heat and Power (Cogeneration)
CHP and cogeneration plants produce electricity and useful heat from the same fuel, typically with combustion turbines or engines paired with heat recovery steam generators or boilers. Peerless provides its full SCR and CO oxidation portfolio to these units, including the patented EDGE® ammonia injection grid, Direct Injection SCR for turbines and IC engines and catalyst services that keep systems performing between outages.
Biomass and Alternative Fuels
Industrial plants increasingly burn what their processes produce. Peerless low-NOx burners are designed to fire any combustible gaseous or liquid fuel, including landfill and digester gases, process off-gases and liquids, hazardous waste gases and liquids and biomass such as wood and nut shells. Peerless combustion control technologies are used at pulp and paper mills, chemical plants and ethanol plants.
Thermal Oxidizers, Dryers and Kilns
Peerless CCA Combustion technologies have been installed on hundreds of steam generators worldwide, ranging in size from 10 MW (25,000 lb/hr steam generation) to 800 MW, and on thermal oxidizers and dryers. For kilns, Selective Non-Catalytic Reduction (SNCR) provides a low-cost technique to reduce NOx by 30-75%.
Combustion and Emissions Control in One Project
Industrial NOx compliance starts at the burner and ends at the stack. Peerless designs and supplies the burners and combustion systems at the inlet, then engineers the SCR or SNCR system at the outlet, bringing both ends under one project and one partner. The New England paper mill retrofit shows the approach in practice: combustion optimization and a new urea SCR system delivered together to meet single-digit emissions.
Emissions Control
DeNOx Selective Catalytic Reduction (SCR)
CO/VOC oxidation
Ultra-low, BACT-level emissions
Fast-start compliance
Wide-range operating performance
Retrofit Options for Existing Plant Equipment
The Peerless team is built to work with whatever emissions equipment is already on site. Our team collaborates with each customer to keep the impact on existing operations to a minimum.
Retrofit Solutions Include:
Low-NOx burner replacements and upgrades, plus OFA, FGR and SNCR retrofits on existing boilers
Converting conventional vaporizer systems to direct injection, and reagent conversion to safer urea-based SCR
Replacing ammonia injection grid lances with the patented EDGE® AIG design to reduce ammonia consumption by 20-40% and extend catalyst life by 1-2 years
Rebuilding or upgrading AFCU and vaporizer skids, including controls upgrades
Catalyst testing, cleaning and replacement
CFD modeling, engineering assessments, emissions testing and combustion optimization services
