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Thermal Oxidizer Systems
A.H. Lundberg’s Thermal Oxidizer Systems are designed to handle VOC gases of varying concentration and composition to meet or exceed all environmental requirements.
Operators of industrial processes that emit Volatile Organic Compounds (VOCs) have long known that a thermal oxidizer is the best solution to employ in the destruction of these emissions. The challenge, however, is minimizing fuel and operating costs while destroying the VOCs.
AHLS Regenerative Thermal Oxidizer (RTO) and Regenerative Catalytic Oxidizer (RCO) are a proven economical and energy-efficient family of technologies designed to meet this challenge.
AHLS offers a Direct Fired Oxidizer (DFO), which has the primary choice for disposal of the waste gas streams for many clients in the pulp and paper industry. The system is designed to thermally oxidize contaminants in waste gas streams such as concentrated and dilute NCG, chip bin gas, stripper off-gas.
AHLS thermal oxidizers are designed to incinerate varying concentration and composition of hazardous air pollutants to meet or exceed stringent environmental requirements.
AHLS has installed custom thermal oxidizers in many different industrial plants worldwide.
Regenerative Thermal Oxidizer and Regenerative Catalytic Oxidizer
Although thermal oxidation is recognized as the best solution to destroy Volatile Organic Compounds, the challenge is to minimize the fuel and operating costs for the process.
AHLS Regenerative Catalytic Oxidizers (RCOs) meet the challenge of minimizing fuel (95% fuel savings versus no RCO) and operating costs. Regenerative Catalytic and Thermal Oxidizers provide a destruction efficiency of 98 to 99% of the VOCs.
AHLS Regenerative Thermal Oxidizer incorporates high preheat efficiency with broad operational flexibility. Industries can economically achieve compliance with strict local, provincial and federal emission regulations. The RTO is designed to safely operate from 840°C to 1100°C with 95+% thermal efficiency.
AHLS Regenerative Catalytic Oxidizer provides industries with a proven, low temperature solution for VOC emission control. Compared to an equivalent duty of the RTO, the RCO is smaller and less expensive in capital and operating cost since it works at temperature as low as 450° C.
RTOs and RCOs are ideal to address industrial processes such as:
- Panel-board dryers
- Petroleum storage tank vapours
- Bitumen storage tank ventilation
- Truck and rail car loading vent capture
- Ethanol storage tank ventilation
- Paint curing ovens, and
- Insulation manufacturing
- MeOH storage tanks vapours
The hallmark of AHLS design is simplicity, which equates to ease of maintenance and high reliability. Each system is designed as a vertical “tank” which is divided into twin heat recovery chambers. Fast acting poppet valves are utilized to switch the direction of the gas stream within these heat recovery chambers.
Design criteria:
- 98 to 99% destruction efficiency
- Up to 95% thermal efficiency
- Heat exchange media designed to meet the requirements of each application
- State-of-the-art controls custom-designed for each application
- Complete turnkey systems available
Direct-fired Oxidizer
AHLS DFO has been specifically developed over the years to withstand the harsh environments of the pulp and paper industry. It is also ideal for thermal oxidation of waste gases in other industries. The incinerator is designed to provide Volatile Organic Compounds (VOCs) and Total Reduced Sulphur (TRS) destruction efficiencies exceeding 99.99%. AHLS has many DFO systems operating worldwide.
These incinerators can be designed for continuous or intermittent (rapid start-up) operation, as appropriate.
Enhancements to thermal oxidizers can include:
- Fire tube waste heat boiler to generate low pressure steam
- A tail gas scrubber to capture sulphur compounds from the waste gas
Specialized Burner Nozzles
We offer custom-designed burner nozzles to safely inject the waste gas for complete destruction. The burner nozzles may be designed for a single fuel or a combination of multi-fuels.
These incinerators can be designed for continuous or intermittent (rapid start-up) operation, as appropriate. Waste Heat Boilers may be added to recover flue gas heat to produce steam.
AHLS direct fired oxidizers with a waste heat boiler are a proven economical and energy-efficient. Meeting global environmental regulations, these are designed to eradicate Hazardous Air Pollutants (HAP).
Our Flue-Gas Desulphurization (FGD) technologies effectively remove sulphur dioxide (SO2) from exhaust flue gases.