Renewable Energy

Renewable energy facilities use fired equipment to turn biogas, landfill gas, and biomass into usable heat, and to destroy the gas they cannot use. That includes digester heating boilers, biomass and digestate dryers, pyrolysis reactors, tail gas oxidizers on RNG upgrading systems, and the flares and combustors that handle excess or off-spec gas.

On a renewable energy site, burner management covers both the equipment that uses the gas and the equipment that destroys it: biogas boilers, renewable fuel heaters, dryers, and kilns on one side, and landfill gas flares, enclosed combustors, and RNG tail gas oxidizers on the other. Every one of them depends on reliable ignition and a shutdown that fails safe.

Biogas and landfill gas can vary in methane content, moisture, pressure, contaminants, sulfur compounds, siloxanes, and heating value. Reliable combustion control helps operators manage ignition, flame stability, shutdown response, and burner visibility when using these gases for heat, CHP, or process support, or when destroying them through flares, combustors, or oxidizers.

Methane content sets the fuel’s heating value, so a burner orificed for 55 percent methane biogas delivers less heat, and a less stable flame, when the gas drops toward 40 percent. Setup has to account for the low end of the range: orifice sizing, air setting, pilot design, and flame detection all need margin. Where methane swings widely, fuel/air ratio control or a natural gas blend keeps firing stable.

RNG projects may use fired equipment around gas cleanup, dehydration, sulfur or siloxane removal, CO₂ removal, fuel conditioning, tail gas oxidation, flare backup, and process heat. Combustion control helps operators manage ignition, burner performance, temperature control, emissions-control equipment, shutdown response, and visibility across RNG support systems. For an example, see the dual candlestick flare control package built for an RNG facility expansion.

Yes. Profire can support combustion-related equipment around biochar, biomass, and pyrolysis applications where burner management, fuel delivery, thermal oxidizers, off-gas combustion, dryers, or supporting control systems are part of the project scope.

Profire supports renewable energy fired equipment such as landfill gas and biogas flares, enclosed combustors, thermal oxidizers and RTOs, biogas and renewable fuel boilers, gas treatment and fuel conditioning heaters, biomass dryers and kilns, biofuel refinery heaters, and pyrolysis and biochar thermal systems. Fuel quality usually drives the scope more than equipment type: methane content, moisture, siloxanes, and whether a natural gas backup is needed.

Projects should consider fuel variability, gas treatment upstream of the burner, burner configuration, backup fuel, flare compliance requirements, communications, documentation, and long-term support. On landfill and digester sites, review the full range of gas quality the site has actually seen, not only the design case, since the burner has to light and stay lit at the low end.