9 ppmvd @ 15% O2 (or 0.15 g/bhp-hr) 9 ppmvd @ 60 ppmvd @ 3.5 ppmvd @ Landfill gas: Emission limit 15% O2 15% O2 15% O2 Emission limit corresponding corresponding to use of a to use of fuel gas Biogas-fired landfill gas pretreatment turbine, <3 MW with sulfur system for content of no particulate more than removal 150 ppmv as 5 ppmvd @ H2S 15% O2 Digester gas: Emission limit corresponding Biogas-fired to use of turbine, MW ≥3 digester gas with sulfur content of no more than 40 ppmv as H2S Biomass 5 ppmvd @ N/A 25 ppmvd @ N/A N/A 15% O2 15% O2 reciprocating internal combustion engine Engine meeting Engine Engine Emission limit Engine emission meeting meeting corresponding meeting standards of emission emission to use of emission Airborne standards of standards of CARB, or standards of ARB’s Toxic Control very low ARB’s ARB’s ARB’s Measure for Airborne Airborne sulfur, diesel Airborne Diesel-fueled Stationary Toxic Control Toxic Control fuel (15 ppm Toxic Control emergency engine Compression Measure for Measure for sulfur by Measure for generator Ignition Engines Stationary Stationary weight) Stationary for applicable Compression Compression Compression horsepower Ignition Ignition Ignition range Engines for Engines for Engines for applicable applicable applicable horsepower horsepower horsepower range range range Table 3. Most Stringent Emission Limits Identified for Process Equipment at Biorefineries Miscellaneous Sources –
9 ppmvd @ 15% O2 (or 0.15 g/bhp-hr) Biogas-fired turbine, <3 MW 9 ppmvd @ 15% O2 60 ppmvd @ 15% O2 3.5 ppmvd @ 15% O2 Landfill gas: Emission limit corresponding to use of landfill gas with sulfur content of no more than 150 ppmv as H2S Digester gas: Emission limit corresponding to use of digester gas with sulfur content of no more than 40 ppmv as H2S Emission limit corresponding to use of a fuel gas pretreatment system for particulate removal Biogas-fired turbine, ≥3 MW 5 ppmvd @ 15% O2 Biomass reciprocating internal combustion engine 5 ppmvd @ 15% O2 N/A 25 ppmvd @ 15% O2 N/A N/A Diesel-fueled emergency engine generator Engine meeting emission standards of ARB’s Airborne Toxic Control Measure for Stationary Compression Ignition Engines for applicable horsepower range Engine meeting emission standards of ARB’s Airborne Toxic Control Measure for Stationary Compression Ignition Engines for applicable horsepower range Engine meeting emission standards of ARB’s Airborne Toxic Control Measure for Stationary Compression Ignition Engines for applicable horsepower range Emission limit corresponding to use of CARB, or very low sulfur, diesel fuel (15 ppm sulfur by weight) Engine meeting emission standards of ARB’s Airborne Toxic Control Measure for Stationary Compression Ignition Engines for applicable horsepower range Table 3. Most Stringent Emission Limits Identified for Process Equipment at Biorefineries – Miscellaneous Sources
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