Exhaust Purifiers

Foley Environmental

Thank you for inquiring about our Foley Exhaust Purifiers and Scrubbers.

These innovative devices reduce harmful pollutants by catalytically converting pollutants to water and carbon dioxide. Inside the canister is a honeycomb substrate coated with a small amount of precious metals where the reaction occurs.

Foley Environmental is a division of Foley Industrial Engines, the oldest engine distributor in North America. Our 90 years in the engine business has given us extensive knowledge of fuel and exhaust systems. This makes us the ideal supplier for your company’s needs. Foley environmental serves both the public and private sectors, with a customer base that includes Boston’s Big Dig, California public works projects, Brown University, Narragansett electric company, IBM, as well as various public works projects and companies.

Yale and Hyster Forklift Co now include our Foley Environmental purifiers as standard equipment on new machines. These companies are a testimony to our effective solution to exhaust emission problems, as well as to our quick shipping.

As the only U.S. based exhaust purifier specialist we pride ourselves on shipping within 24 to 48 hours of the receipt of an order.

Our scrubbers allow you to work indoors close to an engine without health risks. These air purifiers install easily and come in different styles, depending on the application. Here in the East, purifiers really came into their own on Boston’s BIG DIG. This was the largest public works project since the Tennessee valley Authority and we supplied most of the purifiers used.

This project would not have broken ground without some way to run diesel equipment underground
 

Two Styles Of Purifier Scrubbers

Clip On Style
This style is the easiest to install. It installs at the end of the tail pipe. We supply the purifier with the appropriate sized muffler clamp. Depending on the horsepower of the engine, it is typically the size of a coffee can. When the purifier is no longer needed, such as in a rental application, it can be removed and stored.

Combination Muffler/Purifier
The other style is a combination exhaust muffler/purifier. This style is most appropriate where there is not any room at the end of the tail pipe for a clip on purifier. These applications include skid steer loader and mini-excavators. These combination muffler/purifiers are exactly the same dimensions as the OEM muffler and the installation time is similar to changing out a muffler. Typically, once installed these are not removed. Because they are closer to the exhaust manifold. The mufflers/purifiers do work better than the clip on style but usually can cost up to twice as much because they are both a muffler and a purifier.

To keep you up and running we stock here in the U.S. over 400 scrubbers, both the clip on style and the combination muffler/scrubber version. Since we are the only U.S. based exhaust purifier specialist we are able to ship these units quickly, often the same day as the order is placed, and without the customs delay involved in shipments in from Canada.

What They Do & How They Do It

Our Exhaust purifiers allow you to work indoors close to an engine without any health risks by using catalytic exhaust technology to make the exhaust emissions safe to breathe. Each purifier houses a catalytic core, which eliminates harmful emissions by collection diesel particles and burning off dangerous pollutants such as Carbon Monoxide (CO) and Hydrocarbons (HO). The harmful emissions of the diesel engines are converted into water (H2O) and Carbon Dioxide (CO2) which make it safe to work in close proximity with your machine.

Attached you will find 5 diesel exhausts gas emission reduction curves, and 1 emission reduction table. Emission reduction curves #1-3(for CO, HC and SOF) are optimized reduction curved. Emission reduction table #4 and #5 are part of an underground mining approval test. Emissions reduction table #6 represents mining approval data. In a typical diesel the following average exhaust gas emissions reductions can be expected:

                        Carbon Monoxide (CO) = 80% - 90%+ 
                        Hydrocarbons (HC) = 65% - 80% 
                        Diesel Odor (HCHO) = 70% -85% 
                        Soluble Organics (SOF) = 70% - 85% 
                        Diesel Particulate (DPM) = 20% - 39%

These average exhaust gas emission reductions depend upon using a well maintained diesel engine operating with a load while burning a low sulphur content diesel fuel. Whenever possible the purifier/scrubber should be mounted as close (within 12” - 24”) to the engines exhaust manifold or turbocharger.

Emission reduction curves #4 and #5 reflect the actual exhaust gas emission reductions, which can be expected in the field tests. In #4 and #5 average Carbon monoxide (CO) reduction 93% to 97%, while average hydrocarbon (HC) reductions were in the range of 65% to 78%.

Please review the sample drawings and the listings found in this section.

To better clarify curves #4 and #5, the following symbols are defined as:

                        Cod = Carbon Monoxide before purifier 
                        Cod = Carbon Monoxide after purifier 
                        CHpd = Hydrocarbon before purifier 
                        CHzd = Hydrocarbon after purifier 
                        Td = Exhaust gas temperature (in C) before purifier


In emission reduction table #6 (which is an 8 mode steady State test) maximum CO reduction was 95%, maximum HC reduction was 62% and maximum DPM reduction was 39%.

If you have any questions please call us toll free at 1 800 233 6539, or simply e-mail your inquiry to info@foleyengines.com.

Foley Environmental is different: we are a three-generation, ninety year old family firm that wants to help.

Sincerely,

The Foley Engine Team


P.S.
After you’ve gotten the exhaust fume taken care of, you should think of the noise. Most diesel noise is from the air intake. We supply a combination air filter/noise reducer. This innovative device is called a Walker Airsep and it is ideal for noisy generators and other equipment.

Please call us toll free at 800 233 6539 with any question. We can fax you detailed information. Or e-mail Dr. Diesel directly at DrDiesel@FoleyEngines.com.