Flame-Ox®

The Flame-Ox® oxidizer system was designed to clean up severely contaminated sites. The system can safely process significantly higher concentrations (up to 100,000 ppm or more) and is a great match for a rapid response situation or accelerating the cleanup schedule by eliminating a need to balance process flow with dilution air. The Flame-Ox® can directly accept the higher concentrations and the control system adjust to changing conditions.

The 3-in-1 operation allows the Flame-Ox® to perform initially in the Flame mode under high concentrations and then convert to a traditional thermal oxidizer mode once concentrations fall to less than 40% of the LEL. As the concentrations at the site decline further, the system can then be converted to the catalytic mode. This allows one abatement system to be used for the full life cycle of the remediation project.

Ideally suited to treat off-gas from soil vapor extraction system (SVE) or multi/dual-phase extraction systems (MPE/DPE) in the presence of free phase gasoline.

Three modes

  1. Flame mode for heavily contaminated air stream
  2. Thermal mode is most efficient concentration levels of <50% LEL
  3. Catalytic mode is most efficient for concentration levels of <25% LEL
Catalytic Combustion - Flame Combustion Systems

Regenerative Thermal Oxidizer (RTO)

Regenerative Thermal Oxidizer is a VOC emission control system for process applications with low average VOC concentrations. Each regenerative thermal oxidizer system is designed for the conditions of a specific application. Typical sizes range from 2,000 SCFM to 100,000 SCFM.

  • VOC-laden process air enters the RTO through the inlet manifold
  • Poppet valves direct this gas into the first energy recovery chamber where it is pre-heated
  • The VOCs are oxidized in the combustion chamber at a typical temperature of 1500° F
  • The hot gas exits the combustion chamber through the second energy recovery chamber where the heat is absorbed by the ceramic heat exchange media
  • Poppet valves direct this clean gas to the clean air stack
  • The airflow is reversed by the poppet valves an average of every 120 seconds
  • An optional VOC compensation or puff capture chamber may be added to accumulate the bypassed process air stream during the valve reversal
  • The heat recovery efficiency of the system is up to 95%
  • The VOC destruction efficiency of the system is typically 98 %, 99% achieved with the addition of the optional VOC compensation chamber.
  • Volatile Organic Compounds (VOC) destruction efficiency up to 99%
  • Heat recovery efficiency up to 95% lowers fuel consumption
  • Structured and random ceramic heat transfer media
  • Standard two tower design is an economical solution for most air pollution control needs. Custom tower design available based on application
  • Typical unit sizes – 1,000 to 100,000 scfm
  • Skid mounted units up to 10,000 (scfm) offer cost effective and turnkey installation
  • Quality components provide long life expectancy, reliable operation, and low maintenance
  • Optional Features include:
    • Recirculation
    • Hot side bypass
    • VOC compensation (puff capture) chamber

RTO technology offers operational cost and other performance advantages over recuperative thermal technologies such as direct thermal oxidizer or a catalytic oxidizer.

The regenerative thermal oxidizer’s heat recovery system is designed to recover up to 95% of available thermal energy for reuse in preheating the incoming process airstream. This design reduces the fuel consumption significantly if compared with conventional thermal recuperative oxidizers.

Recuperative Thermal Oxidizer

A recuperative thermal oxidizer is best for process applications with lower flow rates or VOC concentrations above 10% LEL. The recuperative thermal oxidizer heat exchanger is designed to recover up to 75% of available thermal energy for reuse in preheating the incoming process airstream.

Standard VOC destruction efficiency for a recuperative thermal oxidizer is 99% plus. Each oxidizer is designed for the conditions of a specific application. Sizes range from 200 SCFM to 10,000 SCFM. The oxidizer body is a compact preassembled unit consisting of a shell and tube heat exchanger combustion chamber, burner and internal light ceramic fiber insulation.

  • Effective on most hazardous air pollutants
  • Constructed of high-quality materials for superior life expectancy
  • Small space requirements due to compact, integrated design
  • Skid mounted, easy to install or relocate
  • Up to 70% thermally efficient resulting in low operating costs
  • Secondary heat exchangers are available for additional heat recovery capabilities
  • Airflow turndown of 4:1 providing operation flexibility
  • Designed for high VOC loadings
  • Capable of processing 1,000 to 5,000 scfm
  • 99.8% destruction removal efficiency exceeds government regulations
  • Programmable logic control (PLC)
  • Includes all necessary field instruments for a complete operating system
Catalytic Combustion Thermal Oxidizer

Horizontal Gas Thermal Oxidizer-HGTO

The Horizontal Gas Thermal Oxidizer (HGTO) is available in sizes to 4,000 SCFM and can be fitted with a heat exchanger.

The Horizontal Gas Thermal Oxidizer offers the flexibility of a thermal oxidizer with the option to be converted to catalytic mode in the field at any time.

Standard thermal oxidizer system packages are available from 250-1500 SCFM and can be operated on natural gas or propane. Allowable concentration levels are typically up to 5000 ppm.

The standard package is equipped with a burner that uses the process air for combustion air. An option is available to add a dedicated combustion air blower if the oxygen concentration of the process air may be less than 19%.

The optional catalyst module can be quickly inserted in the field with only using minimal equipment.

Applications of thermal oxidizers include environmental remediation projects, amine stripper off gas, condensate storage tank, and tank battery vent gases.

The system can be manufactured with an integrated vacuum extraction system or can be coupled to an existing or independent system. All control panels can be equipped with communication packages for remote monitoring.

Vertical Gas Thermal Oxidizer-VGTO

The Vertical Gas Thermal Oxidizer offers the flexibility of a thermal oxidizer with the option to be converted to catalytic mode in the field at any time.

Standard thermal oxidizer system packages are available from 250-1500 SCFM and can be operated on natural gas or propane. Allowable concentration levels are typically up to 5000 ppm.

The standard package is equipped with a burner that uses the process air for combustion air. An option is available to add a dedicated combustion air blower if the oxygen concentration of the process air may be less than 19%.

The optional catalyst module can be quickly inserted in the field with only using minimal equipment.

Applications of thermal oxidizers include environmental remediation projects, amine stripper off gas, condensate storage tank, and tank battery vent gases.

The system can be manufactured with an integrated vacuum extraction system or can be coupled to an existing or independent system. All control panels can be equipped with communication packages for remote monitoring.

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