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THERMAL OXIDIZERS
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Direct Fired Thermal VOC Oxidizers (no heat
recovery)
Turner EnviroLogic designs and
manufactures direct fired thermal VOC oxidizers for
applications with high VOC concentrations where the level of VOC's
themselves can support combustion without the use of fuel. Such
applications include pipeline venting, tank venting, solvent
cleaning station venting and chemical sterilization processes.
Typically dilution air is added to supply the oxygen needed for
combustion or to keep the thermal VOC oxidizer from running too
hot during surges of high VOC
concentrations.
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Regenerative Thermal Oxidizers
(RTO) More Info
For very low VOC concentrations, Turner
EnviroLogic recommends a Regenerative Thermal Oxidizer (RTO) that
is capable of up to 99% destruction efficiency and up to 95% heat
recovery. A two-chamber, industrial RTO equipment is the most cost
effective selection. Individual heat recovery chambers are filled
with a ceramic heat sink media. Incoming VOC laden air enters one
of the chambers where the gas is raised close to the light-off
temperature by heat stored in the ceramic heat sink media. The
heated gas is then burned in the top combustion chamber. These hot
gases are then routed through a second chamber where the heat is
again stored in the ceramic media. During the next operating cycle
of the industrial RTO equipment, the gas flow though the unit is
reversed by switching of a proprietary switching
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Recuperative Thermal
Oxidizers
Where the concentration of VOC's is
lower, auxiliary fuel is needed to maintain proper destruction
temperatures. To minimize the amount of auxiliary fuel needed,
Turner EnviroLogic applies a stainless steel heat exchanger
to preheat the incoming gas with heat from the oxidizer exhaust.
Recuperative thermal oxidizers can recover up to 70% of the of
combustion heat. Significant energy savings result. Additionally,
a precious metal catalyst can be employed to reduce the oxidation
temperature to the 750° F range. With the use of this type of
catalytic oxidizers, auxiliary fuel costs can be cut in
half.
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Multiple Chamber Thermal
Oxidizers
Multiple chamber, industrial RTO equipment is
applied when 99%+ destruction efficiency is required. Again, up to
95% of the heat of combustion can be recovered by alternating the
flow of gases through the individual heat recovery chambers. For
further fuel savings, a catalyst layer can be installed in the
industrial RTO equipment, above the ceramic heat sink media in
each chamber. The temperature needed for proper VOC destruction is
virtually cut in half with the use of this type of catalyst
oxidizers.
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