piping. In addition to the analysis of the possible control option of a redundant FGD system to control SO2 emissions when FDG maintenance is being performed which would require the installation of a spray dryer/baghouse with instrumentation along with steel ductwork with dampers, Middletown Coke Company also has agreed to reduced coal along with employing a reduced sulfur content of the coal during FDG maintenance. Based upon that analysis, the following was deemed to satisfy BACT/LAER requirements. Process LAER/BACT LAER/ LAER/BACT Emission Operations Control BACT Limitations Rate for SO2 (tpy) Technology Coking Limiting the Reduced coal 107.64 operations annual along with reduced with heat maintenance sulfur content of coal recovery to no more changed and 1794 lbs steam than five per hour. generators days per and lime year; and by spray dryer following – main stack good work when the practices lime spray which shall dryer is reduce SO2 bypassed. emissions by 28 percent. Process BACT BACT Limitation BACT Emission Rate for Operations Control Technology CO (tpy) Coking Combustion during 20 ppm 1.31 operations coking process shall with heat be optimized by recovery monitoring the steam temperature in each generators oven crown and sole and lime flue and adding air as spray dryer needed through – main stack dampers in each when the oven. lime spray dryer is bypassed. Process LAER/BACT LAER/BACT LAER Emission BACT Operations Control Limitation Rate for NOx Control Technology (tpy) for
piping. In addition to the analysis of the possible control option of a redundant FGD system to control SO2 emissions when FDG maintenance is being performed which would require the installation of a spray dryer/baghouse with instrumentation along with steel ductwork with dampers, Middletown Coke Company also has agreed to reduced coal along with employing a reduced sulfur content of the coal during FDG maintenance. Based upon that analysis, the following was deemed to satisfy BACT/LAER requirements. Process Operations LAER/BACT Control Technology LAER/ BACT Limitations LAER/BACT Emission Rate for SO2 (tpy) Coking operations with heat recovery steam generators and lime spray dryer – main stack when the lime spray dryer is bypassed. Limiting the annual maintenance to no more than five days per year; and by following good work practices which shall reduce SO2 emissions by 28 percent. Reduced coal along with reduced sulfur content of coal changed and 1794 lbs per hour. 107.64 Process Operations BACT Control Technology BACT Limitation BACT Emission Rate for CO (tpy) Coking operations with heat recovery steam generators and lime spray dryer – main stack when the lime spray dryer is bypassed. Combustion during coking process shall be optimized by monitoring the temperature in each oven crown and sole flue and adding air as needed through dampers in each oven. 20 ppm 1.31 Process Operations LAER/BACT Control Technology LAER/BACT Limitation LAER Emission Rate for NOx (tpy) BACT Control for