A renewable natural gas facility in the southern United States will use a 12,000 scfm regenerative thermal oxidizer (RTO) to control the waste gas from its LFG purification process at a landfill. The oxidizer provides 98.5 percent destruction rate efficiency (DRE) and 92 percent thermal efficiency.
Catalytic Products International (CPI) provided a turnkey installation, including engineering, design and rigging of the RTO on a concrete pad. Related equipment included exhaust stack, booster fan and high VOC hot-gas bypass system. The equipment treats the tail gas from the pressure-swing adsorption system (PSA) used for purification.
Thermal treatment of VOCs and other air pollutants works by a reaction of the harmful hydrocarbon-based air pollutants with oxygen and heat. In this environment, the VOCs are oxidized to form inert byproducts like CO2, water vapor and usable heat. These byproducts are released to the atmosphere or used within primary or secondary energy recovery techniques to further lower the operational costs.