Ways of Furnace Emissions Control

Furnace emissions control is on the mind of every steelmaking and refining operation. With more regulations and restrictions being placed on their functions each day, it’s become apparent that there need to be multiple ways to control the emissions that are created.

And here is an overview of the possible ways that these factories may be controlling their pollution.

What’s being put into the air?

Whether the refinery is melting, charging, tapping, or slag handling, the most emissions are produced during the oxygen blow period. The primary emissions include lime, oxides, and lime, but can also contain chromium, cadmium, lead, manganese, and nickel as well as zinc.

All of these probable emissions require some form of furnace emissions control in order to reduce and prevent high levels of pollution. And with the diminishing legal levels of pollutants that are allowed in the air, multiple methods of air pollution control are becoming necessary.

Ways that are used to reduce emissions

These hot gases need furnace emissions controls that actually collection the emissions so that they can not be released. Here are three different methods:

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Wet suppressed combustion - When excess air is taken from the off-gas collection system before high energy wet scrubbing, it suppresses the combustion of carbon dioxide until after the scrubbing process

Wet open combustion – This uses excess air that is pulled into the hood of the exhaust system, allowing carbon dioxide to combust before the high energy wet scrubbing

Semi wet – This is when water is added to change the furnace off-gas temperature and the humidity before processing the gas in electrostatic precipitators

Of course, if you’re not directly involved in the factory setting, these reactions might not make a lot of sense to you. However, it is good that there are three different processes involved in furnace emissions control.

And knowing about the various methods of furnace emission control can help you look at even your home furnace differently.

Why this is important

The fact of the matter is that factories are still some of the largest producers of pollution in the environment. And while furnace emissions control is a good start, the systems that are in place need to be routinely maintained in order to work to their highest capacity.

For information on these emissions control processes as well as any other questions, contact Steve Taub. He’s an emissions control expert that can handle even the most difficult queries.

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