Emission Control
American Environmental
Fabrication & Supply, LLC


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Natural Gas Conditioning
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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, Wet Scrubbers, Regenerative, Catalytic and Direct Fired
Thermal Oxidizers
. Rentals range from 6 months to 5 years with flexible options.
Products

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Helpful Equipment Information
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1. Wrong material for the process application. Choosing materials that are right for the
application.

A. Skin or Shell Material Selection (Metal Type i.e. Carbon,Stainless Steel, Inconel, Thickness)
B. Valve Selection (Butterfly Valves vs. Poppet Valves)
C. Media Bed Support (Material and Thickness)
D. Paint (Powder Coated, Hot Dipped Galvanized vs. High Temperature)
E. High Quality Solenoids, Compressors, Dryers, etc.
2. Characterization of the Plant Process Stream.
Know the pounds or the ppmv value of the VOC's, HAP's or other gases that the regenerative thermal
oxidizer will be processing. This will allow to the process engineer to calculate the BTU value and allow
for the proper abatement equipment design.
This is a very common occurrence in the industry. The OEM manufactures a system to accommodate a
customers budget. When this occurs the equipment will not be able to process all of the plants off
gases. The vacuum pressure is inadequate or the regenerative thermal oxidizer (RTO) unit may run too
hot which will cause equipment alarms and shut downs.
4. Sizing the Regenerative Thermal Oxidizer Heat Recovery System.
The heat recovery system allows the system to retain BTU heat energy and will adsorb much of the
additional BTU processed values when the VOC spikes occur. The system outlet temperature will also
rise and the combustion temperature will also be increased. Should the temperature raise above the
maximum operating temperature the system will shut down due to high operating temperatures. These
spikes may be addressed by the use of a hot air by pass valve which will accommodate for spike VOC
conditions, after the spike condition the RTO system will again go back to running at maximum heat
recovery efficiency.
5. Incorrect Heat Recovery Media or Heat Recovery Media Placement.
Incorrect media sizing or type can result in system fouling (plugging) or loss in thermal efficiency.
Improper media placement can result in inefficiencies by means of the process stream channeling by
the heat recovery media. Proper media size and media protection can protect the ceramic material and
give the system better thermal efficiency and longer ceramic bed life.
6. Improper Plant Particulate Filtration.
Poor or lacking maintenance of upstream particulate removal. This is very common issue when the
plant maintenance department fails to maintain proper filtration of the plant process gases going to the
regenerative thermal oxidizer. Poor filtration or lack thereof in many off gas processes will result
in early ceramic media replacement.
7. Compliance Testing.
Testing the regenerative thermal oxidizer equipment above the minimum permit requirement. Often
companies wish to run the system at higher operating temperatures. This is great, however testing
above the permit level can cause a new set of problems. You may be required to operate the
regenerative thermal oxidizer compliance with the original permit, the rto equipment may fail to pass
future tests at the higher baseline due to aging of valve seals and or particulate buildup and channeling
within the ceramic media. At this point you may be out of compliance during the required future test.
Top 7 Mistakes Made When Buying A Regenerative Thermal Oxidizer
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Our working process
in 3 steps





planing & strategy





test & deliver





design & develop
Implement proven equipment designs with
chemical, thermal and biological reactions
that achieves the required process result.
Results shall be based on reaction rates
and proper control logic.
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
energy costs.
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
needs.