The thermal oxidizer shall be composed of a horizontal enclosed combustion
chamber, with catalyst modules, that maintains a constant temperature by
controlling fuel and combustion air. The thermal oxidizer shall be
compatible with the temperatures of operation with or without using the
modular catalyst unit.
2.7
CONTAMINANT CONCENTRATION SYSTEM
**************************************************************************
NOTE: Fuel costs for dilute or wet off-gas streams
are substantially reduced by using a concentration
system. Consider a concentration system if the
organic carbon is less than 2,000 ppmv.
**************************************************************************
Inlet gas concentration of [total hydrocarbon] [methane] [non methane
organic compounds (NMOC)] [_____] shall be increased by a minimum of [ten]
[five] [two] times the initial concentration.
2.8
HEAT RECOVERY SYSTEM
**************************************************************************
NOTE: Use media for regenerative systems or heat
exchanger for recuperative systems.
**************************************************************************
2.8.1
Media Chambers
Exhaust flow through media chambers shall recycle a minimum of [50] [_____]
percent of the heat input at maximum operating conditions (maximum flow and
temperature).
2.8.2
Heat Exchanger
The multiple pass, or single pass plate heat exchanger, or tube and shell
heat exchanger shall recycle a minimum of [80] [_____] percent of the heat
input at maximum operating conditions (maximum flow and temperature).
2.9
FLAME TRAP/ARRESTER
**************************************************************************
NOTE: This is a safety requirement that must be
implemented.
**************************************************************************
Flame arrester, in accordance with FM P7825, shall be provided at the inlet
to the oxidation system. The pressure drop across the flame arrester shall
be a maximum of [_____] [1.5] kPa [_____] [6] in W.C. at maximum flow. The
flame arrester shall have a clean-out cover to facilitate maintenance.
2.10
INLET PROTECTION
**************************************************************************
NOTE: The system should be protected by moisture
reduction.
**************************************************************************
SECTION 11378
Page 19
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