EPA R6 CALPUFF inputs basecase post-consent decree

Unit 1 Unit 2 Unit 3 Unit 4 heat input (Mbtu/hr) 3707 3688 5758 5649 NOx (lb/Mbtu) 0.33 0.33 0.33 0.33 post-consent decree emission rate (0.30 30-day average) NOx (lb/hr) 1223.31 1217.04 1900.14 1864.17 **NOx (g/s) 154.4583**  **153.6667 239.9167**  **235.375** SO2 (lb/Mbtu) 0.18 0.18 0.18 0.18 from PNM basecase run SO2 (lb/hr) 667.26 663.84 1036.44 1016.82 **SO2 (g/s) 84.25**  **83.81818 130.8636**  **128.3864** PM (lb/Mbtu) 0.015 0.015 0.015 0.015 post-consent decree emission rate PM (lb/hr) 55.605 55.32 86.37 84.735 PM (g/s) 7.020833 6.984848 10.9053 10.69886 SO3 (lb/Mbtu) 0.010925 0.010927 0.010924 0.010922 SO3 (lb/hr) 40.5 40.3 62.9 61.7 SO3 emission rates for combustion are from NPS speciation worksheet, inorganic condensible pm is 100% H2SO4 **Total SO3 (g/s) 5.113636**  **5.088384 7.941919**  **7.790404**

SCR with 1.0% SO2 to SO3

Unit 1 Unit 2 Unit 3 Unit 4 heat input (Mbtu/hr) 3707 3688 5758 5649 NOx (lb/Mbtu) 0.07 0.07 0.07 0.07 B&V suggested SCR emission rate NOx (lb/hr) 259.49 258.16 403.06 395.43 **NOx (g/s) 32.76389**  **32.59596 50.89141**  **49.92803** SO2 (lb/Mbtu) 0.18 0.18 0.18 0.18 from PNM basecase run SO2 (lb/hr) 667.26 663.84 1036.44 1016.82 **SO2 (g/s) 84.25**  **83.81818 130.8636**  **128.3864** PM (lb/Mbtu) 0.015 0.015 0.015 0.015 post-consent decree emission rate PM (lb/hr) 55.605 55.32 86.37 84.735 PM (g/s) 7.020833 6.984848 10.9053 10.69886 Total SO3 (lb/Mbtu) 0.030807 0.030803 0.030792 0.030802 Total SO3 (lb/hr) 114.2 113.6 177.3 174 **Total SO3 (g/s) 14.41919**  **14.34343 22.38636**  **21.9697** Total SO3 = SO3 from combustion + SO3 from SCR SO3 from SCR (lb/Mbtu) SO3 from SCR (lb/hr) 73.7 73.3 114.4 112.3 SO3 from SCR is 1.0% of design basis economizer outlet SO2 (see appendix A to b&v BART analysis for design basis) SO3 from SCR (g/s) 9.305556 9.255051 14.44444 14.17929

SCR with 1.0% SO2 to SO3 and inherent removal

Unit 1 Unit 2 Unit 3 Unit 4 heat input (Mbtu/hr) 3707 3688 5758 5649 NOx (lb/Mbtu) 0.07 0.07 0.07 0.07 B&V suggested SCR emission rate NOx (lb/hr) 259.49 258.16 403.06 395.43 **NOx (g/s) 32.76389**  **32.59596 50.89141**  **49.92803**SO2 (lb/Mbtu) 0.18 0.18 0.18 0.18 from PNM basecase run

SO2 (lb/hr) 667.26 663.84 1036.44 1016.82 **SO2 (g/s) 84.25**  **83.81818 130.8636**  **128.3864** PM (lb/Mbtu) 0.015 0.015 0.015 0.015 post-consent decree emission rate PM (lb/hr) 55.605 55.32 86.37 84.735 PM (g/s) 7.020833 6.984848 10.9053 10.69886 Total SO3 (lb/Mbtu) 0.01689 0.01689 0.016884 0.016886 Total SO3 (lb/hr) 62.61 62.29 97.22 95.39 **Total SO3 (g/s) 7.905303**  **7.864899 12.27525**  **12.04419** Total SO3 = SO3 from combustion + SO3 from SCR SO3 from SCR (lb/Mbtu) SO3 from SCR (lb/hr) 22.11 21.99 34.32 33.69 SO3 from SCR is 1.0% of design basis economizer outlet SO2 (see appendix A to b&v BART analysis for design basis) SO3 from SCR (g/s) 2.791667 2.7765154.3333334.253788 with inherent controls (removal efficiency 40% for FGD and 50% for PJFF)
from Appendix A to B&V BART analysis Design Basis Economizer outlet Unit 1 Unit 2 Sulfur Dioxide (SO2 ), lb/MBtu 1.59 1.59 Sulfur Dioxide (SO2 ), lb/h 5,884 5,854 Sulfur Trioxide (SO3 ), lb/h 74 73 Sulfur Trioxide (SO3 ), lb/MBtu 0.02 0.02 % conversion of SO2 to SO3 by SCR catalyst 1% 73.55lb/h SO3 73.175lb/h SO3post-consent decree emission rate (0.30 30-day average)

from PNM basecase run

post-consent decree emission rate

SO3 emission rates for combustion are from NPS speciation worksheet, inorganic condensible pm is 100% H2SO4

B&V suggested SCR emission rate

from PNM basecase run

post-consent decree emission rate

Total SO3 = SO3 from combustion + SO3 from SCR
SO3 from SCR is 1.0% of design basis economizer outlet SO2 (see appendix A to b&v BART analysis for design basis)

B&V suggested SCR emission ratefrom PNM basecase run

post-consent decree emission rate

Total SO3 = SO3 from combustion + SO3 from SCR
SO3 from SCR is 1.0% of design basis economizer outlet SO2 (see appendix A to b&v BART analysis for design basis) with inherent controls (removal efficiency 40% for FGD and 50% for PJFF)

Unit 3 Unit 4 1.59 1.59 9,140 8,967 114 112 0.02 0.02

114.25lb/h SO3 112.0875lb/h SO3**EPA**

**R6 CA LPUFF inputs** 

basecase post-consent decree

Unit 1 Unit 2 Unit 3 Unit 4 heat input (Mbtu/hr) 3707 3688 5758 5649 NOx (lb/Mbtu) 0.33 0.33 0.33 0.33 post-consent decree emission rate (0.30 30-day average) NOx (lb/hr) 1223.31 1217.04 1900.14 1864.17 **NOx (g/s) 154.4583**  **153.6667 239.9167**  **235.375** SO2 (lb/Mbtu) 0.18 0.18 0.18 0.18 from PNM basecase run SO2 (lb/hr) 667.26 663.84 1036.44 1016.82 **SO2 (g/s) 84.25**  **83.81818 130.8636**  **128.3864** PM (lb/Mbtu) 0.015 0.015 0.015 0.015 post-consent decree emission rate PM (lb/hr) 55.605 55.32 86.37 84.735 **PM (g/s)**  **7.020833 6.984848**  **10.9053 10.69886**  Total SO3 (lb/hr) 0.17 0.17 0.27 0.26 * EPRI method for SO3 from boiler **Total SO3 (g/s) 0.021465**  **0.021465 0.034091**  **0.032828**

SCR with 0.5% SO2 to SO3

Unit 1 Unit 2 Unit 3 Unit 4 heat input (Mbtu/hr) 3707 3688 5758 5649 NOx (lb/Mbtu) 0.05 0.05 0.05 0.05 recommeded SCR emission rate NOx (lb/hr) 185.35 184.4 287.9 282.45 **NOx (g/s) 23.40278** **23.28283 36.35101**  **35.66288** SO2 (lb/Mbtu) 0.15 0.15 0.15 0.15 presumptive BART limit used by WRAP SO2 (lb/hr) 556.05 553.2 863.7 847.35 **SO2 (g/s) 70.20833**  **69.84848 109.053**  **106.9886** PM (lb/Mbtu) 0.015 0.015 0.015 0.015 post-consent decree emission rate PM (lb/hr) 55.605 55.32 86.37 84.735 **PM (g/s)**  **7.020833 6.984848**  **10.9053 10.69886**  Total SO3 (lb/hr) 0.39 0.39 0.61 0.6 * EPRI method for SO3 from boiler and SCR **Total SO3 (g/s) 0.049242**  **0.049242 0.07702**  **0.075758**

BASE EPRI w/ adjusted SO2 to 0.15 lb/mmBTU limit

Unit 1 Unit 2 Unit 3 Unit 4 heat input (Mbtu/hr) 3707 3688 5758 5649 NOx (lb/Mbtu) 0.33 0.33 0.33 0.33 post-consent decree emission rate (0.30 30-day average) NOx (lb/hr) 1223.31 1217.04 1900.14 1864.17 **NOx (g/s) 154.4583**  **153.6667 239.9167**  **235.375** SO2 (lb/Mbtu) 0.15 0.15 0.15 0.15 presumptive BART limit used by WRAP SO2 (lb/hr) 556.05 553.2 863.7 847.35 **SO2 (g/s) 70.20833**  **69.84848 109.053**  **106.9886**PM (lb/Mbtu) 0.015 0.015 0.015 0.015 post-consent decree emission rate

PM (lb/hr) 55.605 55.32 86.37 84.735 **PM (g/s)**  **7.020833 6.984848**  **10.9053 10.69886**  Total SO3 (lb/hr) 0.17 0.17 0.27 0.26 * EPRI method for SO3 from boiler **Total SO3 (g/s) 0.021465**  **0.021465 0.034091**  **0.032828**

SCR with 0.5% SO2 to SO3

Unit 1 Unit 2 Unit 3 Unit 4 heat input (Mbtu/hr) 3707 3688 5758 5649 NOx (lb/Mbtu) 0.05 0.05 0.05 0.05 recommeded SCR emission rate NOx (lb/hr) 185.35 184.4 287.9 282.45 **NOx (g/s) 23.40278** **23.28283 36.35101**  **35.66288** SO2 (lb/Mbtu) 0.15 0.15 0.15 0.15 presumptive BART limit used by WRAP SO2 (lb/hr) 556.05 553.2 863.7 847.35 **SO2 (g/s) 70.20833**  **69.84848 109.053**  **106.9886** PM (lb/Mbtu) 0.015 0.015 0.015 0.015 post-consent decree emission rate PM (lb/hr) 55.605 55.32 86.37 84.735 **PM (g/s)**  **7.020833 6.984848**  **10.9053 10.69886**  Total SO3 (lb/hr) 0.74 0.73 1.15 1.12 * EPRI method for SO3 from boiler and SCR w/ **Total SO3 (g/s) 0.093434** **0.092172 0.145202**  **0.141414**

SCR with 0.5% SO2 to SO3

Unit 1 Unit 2 Unit 3 Unit 4 heat input (Mbtu/hr) 3707 3688 5758 5649 NOx (lb/Mbtu) 0.05 0.05 0.05 0.05 recommeded SCR emission rate NOx (lb/hr) 185.35 184.4 287.9 282.45 **NOx (g/s) 23.40278** **23.28283 36.35101**  **35.66288** SO2 (lb/Mbtu) 0.15 0.15 0.15 0.15 presumptive BART limit used by WRAP SO2 (lb/hr) 556.05 553.2 863.7 847.35 **SO2 (g/s) 70.20833**  **69.84848 109.053**  **106.9886** PM (lb/Mbtu) 0.015 0.015 0.015 0.015 post-consent decree emission rate PM (lb/hr) 55.605 55.32 86.37 84.735 **PM (g/s)**  **7.020833 6.984848**  **10.9053 10.69886**  Total SO3 (lb/hr) 0.95 0.94 1.47 1.44 * EPRI method for SO3 from boiler and SCR w/ **Total SO3 (g/s) 0.119949**  **0.118687 0.185606**  **0.181818**0.1971599 post-consent decree emission rate (0.30 30-day average)

from PNM basecase run

post-consent decree emission rate

SO3 emission rate lb/Mbtu * EPRI method for SO3 from boiler 0.000045860.000046100.000046890.00004603 0.17 0.17 0.27 0.26

recommeded SCR emission rate

presumptive BART limit used by WRAP

post-consent decree emission rate

SO3 emission rate lb/Mbtu * EPRI method for SO3 from boiler and SCR 0.000105210.000105750.000105940.00010621 0.39 0.39 0.61 0.6

post-consent decree emission rate (0.30 30-day average)

presumptive BART limit used by WRAPpost-consent decree emission rate

* EPRI method for SO3 from boiler

recommeded SCR emission rate

presumptive BART limit used by WRAP

post-consent decree emission rate

SO3 emission rate lb/Mbtu * EPRI method for SO3 from boiler and SCR w/**NH3 slip = 0.75 ppm** 0.000199620.000197940.00019972 0.74 0.73 1.15

recommeded SCR emission rate

presumptive BART limit used by WRAP

post-consent decree emission rate Maximum estimated emission rate SO3 emission rate lb/Mbtu * EPRI method for SO3 from boiler and SCR w/**NH3 slip = 0.0 ppm** 0.000256270.000254880.00025530 0.95 0.94 1.470.19614935 0.306244 0.3004470.00019827

1.12

0.00025491 1.44Created by Michael Feldman EPA Region 6 feldman.michael@epa.gov snyder.erik@epa.gov