Upgrades & Services

B&W’s broad range of experience and expertise in emissions control provides the insight necessary to evaluate, recommend and implement cost-effective solutions to improve system performance.

We work as a team with our customers to develop Net Present Value (NPV) calculations to analyze the profitability of proposed solutions to determine the best approach forward to support your emissions compliance programs.

As experts in this field, we recognize and take advantage of opportunities to apply proven technology to existing equipment that provides tangible benefits for our customers.

As a single-source supplier, B&W provides a complete package of integrated environmental upgrade and aftermarket services, including:

Engineering assessment of recurring issues
Upgrades for aging equipment
Replacement parts
Installation and construction services
Startup and commissioning
Performance testing and monitoring
Field engineering services
On-site inspections
On-site training programs

B&W supports environmental system upgrades, services and replacement parts for equipment originally supplied by us as well as other manufacturers.

Our experience includes:

Related Resources

Upgrades for Wet FGD Absorbers & Systems

Upgrades for Wet FGD Absorbers and Systems

Absorber Trays

Improves gas-liquid contact for increased SO2 removal efficiency

Installation of hydroclones for primary dewatering

Increases reliability by reducing mist eliminator plugging
Decreases module downtime by minimizing manual cleaning

Installation of dewatering equipment (belt or rotary drum filters)

Reduces makeup water and enhances marketability of byproducts

Forced Oxidation System

Minimizes scaling from a more stable system chemistry
Creates calcium sulfate (gypsum) as a marketable byproduct

Mist Eliminator Wash System

Increases reliability by reducing mist eliminator pluggage
Decreases module downtime by minimizing manual cleaning

Optimized Absorber Spray Headers and Nozzles

Improves gas-liquid contact for increased SO2 removal efficiency

Recirculation Pumps

Increases/optimizes delivery of reagent (limestone) to the system for improved SO2 removal

Selected Project Examples

SERVICE PROVIDED	RESULT
Competitor wet FGD retrofitted with B&W's dual tray technology	Increased SO₂ removal from 83 to 98%
Full condition assessment of wet FGD system; upgraded absorber pumps and spray headers/nozzles; upgraded and replaced reagent preparation and dewatering equipment	Increased SO₂ removal from 91 to 99% Increased reliability Reduced maintenance
Major upgrade of wet FGD system: conversion to forced oxidation; new absorber trays; new spray headers and nozzles; new mist eliminator blades and wash system; additional milling capacity; new hydroclones and belt filters	Increased SO₂ removal from 85% to 95% Production of saleable gypsum (reduced byproduct disposal costs) Reduced maintenance Reduced footprint
Performed upgrades to trays, mist eliminators and waterwash system on four wet FGD units	Increased reliability Reduced maintenance
Converted a wet FGD to limestone reagent	Lowered system operating cost Increased reliability Reduced maintenance
Added spray dryer absorber module for increased load	Increased reliability Reduced system pressure drop
Process tuning for a dry FGD system	Lowered lime consumption Increased operating flexibility
ESP rebuild with a top rapped system	Increased reliability Reduced maintenance
Dry sorbent injection system	Reduced SO₃ emissions generated across SCR to eliminate blue plume Reduced acid formation potential in ductwork and ESP