Fabrication & Supply, LLC
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Low NOx Burners
Benefits of Renting vs. Owning Air Pollution Control Equipment
We have a ready to use air pollution control fleet or can design a specialized system for your plant operations. Some of the available systems include:
Granulated Activated Carbon (GAC) Systems, Biological Oxidation Systems, NG Fuel Conditioning Systems, Wet Scrubbers, Regenerative,
Catalytic and Direct Fired Thermal Oxidizers. Rentals range from 6 months to 5 years with flexible options.
One of the most important aspects of your equipment is the quality materials and a good overall design. Additionally, you
should know the basics of how a regenerative thermal oxidizer works. The primary function of the regenerative thermal
oxidizer is air pollution control or to destroy the waste contaminants from the plants process streams.
The regenerative thermal oxidizer is based on the principle of combustion. Combustion is the most common method used
to destroy organic emissions. Regenerative thermal oxidizer equipment is capable of having very high destruction efficiency
from 98% to 99+ depending on the equipment design. Regenerative thermal oxidizers typically consist of an industrial
burner that ignites supplemental fuel and a combustion chamber that provides the required holding or residence time for
the destruction. Combustion occurs when there is a rapid combination of oxygen with different types of elements or
chemicals resulting in release of heat or British Thermal Units.
Complete combustion of the supplemental fuel is required so that no further pollutants are added to the process. In order
to achieve complete combustion the plant waste stream and the supplemental fuel must be brought into contact with one
another. The following required operating conditions must occur:
1. A temperature which is high enough to ignite and oxidize the plants waste stream.
2. Turbulent mixing of the air, process waste stream and supplemental fuel mixture.
3. Sufficient retention or chamber residence time at the required temperature for the oxidation reaction to occur.
The oxidation of a combustible is affected greatly by the temperature, thus the higher the temperature the quicker the
oxidation rate. Thermal oxidation of most volatile organic compounds (VOC) occurs between 590°F and 650°F over stream
pollutants stay in the regenerative thermal incinerator is called oxidation residence time.
The formula for oxidation residence time is:
t = V / Q where,
t = residence time, seconds
V = chamber volume, ft/3
Q = gas volumetric flow rate at combustion ft3/s.
Combustion air or oxygen stream must be taken into consideration of design. For complete thermal combustion to occur,
every molecule of plant process waste and any supplemental fuel that is added must come in contact with the provided
oxygen. Should this not occur the untreated plant process waste stream and any non ignited supplemental fuel will be
exhausted from the exhaust stack.
A regenerative thermal oxidizer consists of an industrial burner, combustion chamber, and a fan to either push or draw the
plants process stream through the regenerative thermal oxidizer system. This forces the polluted waste stream, air and
fuel are continuously be delivered to the combustion chamber where the waste stream combusted. The waste stream is
delivered through the heat sink ceramic media to cause ignition or preheat the waste gases on the way to the combustion
area. The waste gases in the plants process air are then reacted in the combustion areas at an elevated temperature.
Higher velocity process streams are very useful in preventing any waste stream particulate matter from settling down.
Some industries choose to recover the BTU energy generated by this reaction by use of a heat exchanger.
The regenerative thermal oxidizer should be constructed of material which can withstand higher temperatures such as
5/16" to 3/8” material to avoid thinning of the skin or outside walls of the thermal unit. Regenerative thermal oxidizer's use
thermocouple's designed to detect overheating. The modules of insulation exposed in the combustion chamber area is
typically 8" thick with a density of 12 lbs. /ft3.
Other major areas of importance is the damper system and the way overall system is designed. One important question to
ask is, In the event of a system critical fault is the system capable of sustaining the trapped or captured heat over a
long period of time? Is there a chance that the valves will become damaged or that the expansion joints will burn out?
Another very important question is, if the trapped heat escapes during this period will it damage my fan bearings or the
Our system is designed to be shut off at full temperature! Minimal heat will escape with No Damage! That means when
you start up in the morning it's not 200F it's over 800F reducing the time to set point temperature from 30 minutes to 1 hour
at full burner to 10 to 15 minutes at minimal burner usage. This will save 10's of thousands of dollars over the life of the
|Buying A Regenerative Thermal Oxidizer (RTO)
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Implement proven equipment designs with
chemical, thermal and biological reactions
that achieves the required process result.
Results shall be based on reaction rates
Our Corporate goal is to implement the
correct design criteria with the use of
proper metals, instruments and controls to
achieve the required result with the least
amount of maintenance and associated
We pride ourselves in going the extra mile
before it leaves the plant. It is our way of
knowing that you are receiving correctly
designed equipment to meet your specific
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