Serving the industry since 1952

Pollution and Particulate Control

Industrial and utility boiler systems and furnaces most commonly combust solid fuels including Coal & Bio-Mass to release heat that can be transferred to water to generate steam. Combusting any fuel creates undesirable byproducts in the flue gas that can be harmful to the environment, including Nitrogen Oxides (NOx), Sulfur Dioxide (SO2), and Carbon Monoxide (CO).

The Environmental Protection Agency (EPA) in conjunction with local authorities mandate that environmentally harmful emissions be curbed to the approved levels and monitored to guarantee compliance. A variety of technologies can be used to control and monitor harmful emissions in the flue gas including Flue Gas Desulfurization, Electrostatic Precipitation, Carbon Capture, Wet Particulate Scrubbing, and Continuous Emissions Monitoring.

Flue Gas Desulfurization
A common combustion byproduct of many fuels is Sulfur Dioxide (SO2), a compound that can be harmful to the environment. As emissions regulations become more stringent, many facilities are required to significantly curb their SO2 emissions to protect the atmosphere. Flue Gas Desulfurization technologies greatly decrease the amount of SO2 in the flue gas by using methods including but not limited to wet scrubbing and spray-dry scrubbing.
Electrostatic Precipitators
Many territories enforce emissions requirements that require facilities to minimize the amount of particulate emissions that enter the atmosphere from the flue gas stream. An electrostatic precipitator utilizes the force of an induced electrostatic charge to remove fine particulate matter from flue gas before it disperses into the surrounding air. After the particulates are removed from the flue gas they can be isolated and processed safely.
Carbon Capture Technologies
One of the primary byproducts of the combustion of hydrocarbons is Carbon Dioxide (CO2), known ubiquitously as a greenhouse gas. To decrease the emission of this gas into the atmosphere, various sequestration technologies are available to isolate and contain Carbon Dioxide before it exits the system and enters the air. Carbon Capture technologies process the CO2 in the flue gas and route it to an isolated place, typically underground, for permanent storage.
Wet Particulate Scrubbers
A Wet Particulate Scrubber can be placed in the flue gas stream to reduce particulate emissions. The scrubber is designed to atomize a scrubbing liquid that is injected into the flue gas stream to dissolve or absorb particulates. The droplets are then collected and separated to be processed elsewhere. Also required is an entrainment separator that captures pre-existing liquid droplets in the flue gas. The wet scrubber system that uses both of these components can eliminate particulate emissions very effectively.
Emissions Monitoring
In order to control and regulate the flue gas emissions that come from a package boiler it is necessary to measure those emissions on a regular basis. Halgo Power will often include a Continuous Emissions Monitoring System (CEMS) that monitors and records all applicable emissions values. Such a system allows the plant to view important emissions data in real time and adapt system variables accordingly to guarantee compliance. Flue gas test ports are also commonly included in the stack to allow access for manual emissions monitoring. Common gases monitored are NOx and CO.