Loading...
HomeMy WebLinkAboutDEQ-CFW_00086638Vinyl Ethers South Air Emissions Inventory Fugitive Emissions r Page 1 of 5 • r r 2007 Fugitive Emissions Determination Fugitive Emissions (FE) are a function of the number of emission points in the plant (valves, flanges, pump seals). For the fugitive emission calculations the inventory shown below is conservative and based on plant and process diagrams. Note that the division scrubber efficiency is 99.6% for control of acid fluorides. A. Fugitive Emissions from Condensation Reactor System Condensation Tower (vents to stackl Valve emissions: 322 valves x 0.00039 Ib/hr/valve = 0.126 Ib/hr VOC from FE Flange emissions: 644 flanges x 0.00018 Ib/hr/flange = 0.116 Ib/hr VOC from FE Pump emissions: 6 pump x 0.00115 Ib/hr/pump = 0.007 Ib/hr VOC from FE Total fugitive emission rate = 0.248 Ib/hr VOC from FE Condensation Tower VOC Total Condensation Fugitive Emissions: VOC 0.248 Ib/hr FE x 8765 Operating hr/yr 2177 lb FE Composition of Condensation Tower Fugitive Emissions is estimated based on typical process inventory: PAF column: Inventoried with 30 gal fluorocarbon Equivalent mass FC 375.75 lb fluorocarbon Component Mass fraction lb COF2 0.45 169 PAF 0.54 203 HFP 0.005 2 HFPO 0.005 2 Reactor loop Inventoried with 51 gal hydrocarbon assumes 60 gallons, 85% hydrocarbon, 15% fluorocarbon Equivalent mass HC 383.265 lb hydrocarbon Inventoried with 9 gal fluorocarbon Equivalent mass FC 112.725 lb fluorocarbon Component Mass fraction lb COF2 0.09 10 PAF 0.04 5 HFP 0.03 3 PMPF 0.59 67 PEPF 0.23 26 Dimer 0.01 1 MD 0.01 1 AN 383 Hydrocarbon Reactor decanter Inventoried with 25 gal hydrocarbon assumes 50 gal, 50% HC, 50% FC Equivalent mass HC 187.875 lb hydrocarbon Inventoried with 25 gal fluorocarbon Equivalent mass FC 313.125 lb fluorocarbon Component Mass fraction lb COF2 0.09 28 PAF 0.04 13 HFP 0.03 9 PMPF 0.59 185 PEPF 0.23 72 Dimer 0.01 3 MD 0.01 3 AN 188 Hydrocarbon DEQ-CFW 00086638 Vinyl Ethers South k T T Air Emissions Inventory Fugitive Emissions Page 2 of 5 • • 0 Stripper column Inventoried with Equivalent mass FC Component COF2 PAF HFP PMPF PEPF Dimer MD AF column Inventoried with Equivalent mass FC Component PMPF PEPF Dimer MD AF overhead Inventoried with Component PMPF PEPF AF decanter Inventoried with Equivalent mass FC Component PMPF PEPF HFPO tank Waste FC tank Inventoried with Equivalent mass FC Component Dimer MD ED PEPF Hydro PEVE PPVE 30 gal fluorocarbon 375.75 lb fluorocarbon Mass fraction lb 0.09 34 0.04 15 0.03 11 0.59 222 0.23 86 0.01 4 0.01 4 all FC (70% PMPF, 27% PEPF, 1.5% dimer, 1.5% MD) 30 gal fluorocarbon 375.75 lb fluorocarbon Mass fraction lb 0.7 263 0.27 101 0.015 6 0.015 6 1000 kg FC 2200 lb FC Mass fraction lb 0.72 1,584 0.28 616 30 gal fluorocarbon 375.75 lb fluorocarbon Mass fraction lb 0.72 271 0.28 105 135 gal HFPO 1555.605 lb HFPO 1.38 SG 40 gal fluorocarbon 501 30% refining waste (?), 70% is condensation waste (4% dimer, 67% MD, 29% ED) Mass fraction lb 0.028 14.028 assumes 70% is condensation waste (4% dimer, 67% MD, 29% ED) 0.469 234.969 0.203 101.703 0.099 49.599 assumes 30% is waste from refining purges, high boilers PEPF, 0.099 49.599 hydro PEVE, and PPVE 0.099 49.599 DEQ-CFW 00086639 Vinyl Ethers South r � r Air Emissions Inventory Fugitive Emissions Page 3of5 • 0 • B. Average system composition - Condensation lb % VOC emissions (lb) Equivalent HF (lb) COF2 241 3.63% 79 48 PAF 235 3.53% 77 13 HFP 26 0.39% 8 0 HFPO 1,557 23.41%1 510 0 PMPF 2,591 38.94%1 848 73 PEPF 1,057 15.88%1 346 25 Dimer 28 0.42%1 9 0.5 MD 249 3.74% 81 4 AN 571 8.58% 187 0 HydroPEVJ 50 0.75% 1610 PPVE 50 0.75% 16 0 total 6,653 2177 163 Fugitive Emissions from Agitated Bed Reactor System & Refining Valve emissions: 555 valves x 0.00039 Ib/hr/valve = 0.216 Ib/hr FE Flange emissions: 1110 flanges x 0.00018 Ib/hr/flange = 0.200 Ib/hr FE Pump emissions: 12 pump x 0.00116 Ib/hr/pump = 0.014 Ib/hr FE Total fugitive emission rate = 0.430 Ib/hr FE ABR & Refining VOC Total ABR & Refining Fugitive Emissions: 0.43 Ib/hr FE x 8,765 Operating hr/yr = 3,769 lb FE ABR/Crude system Inventoried with 1500 kg FC 3300 lb FC Component Mass fraction lb CO2 0.33 1,089 Not a VOC PMPF 0.01 33 PEPF 0.01 33 HFP 0.005 17 PEVE 0.22 726 PMVE 0.425 1,403 Refining Inventoried with 3000 kg FC 6600 lb FC Component Mass fraction lb PMVE 0.5 3300 PEVE 0.5 3300 Average System Composition - ABR/Refining Ib % VOC emissions (lb) Equivalent HF (Ib) PMPF 33 0.37% 14 1 PEPF 33 0.37% 14 1 HFP 17 0.19% 7 0 PEVE 4,026 45.69% 1722 0 PMVE 4,703 53.37% 2012 1 0 total 8,811 3,769 2 DEQ-CFW 00086640 Vinyl Ethers South Air Emissions Inventory Fugitive Emissions Page 4 of 5 • • C. Acetonitrile fugitive emissions No normal process vents of AN to stack. Equipment emissions are estimated above for normal process composition and leaks. A material balance is also done to ensure all AN losses are accounted for. When material balance shows negative loss, only the estimated equipment emissions are included. VOC Emission AN to hydrocarbon waste from VE-S = total HC waste - VE-N waste= 45,371 Assume that: 5% of spent acetonitrile are fluorocarbons. AN portion of hydrocarbon waste stream: 45,371 kg to H!C waste x (1-(.05)) = 43,102 kg AN to H/C waste 9,245 kg AN fed 43,102 kg AN to waste -33,857 kg AN lost = 0 kg VOC 0 lb VOC additional AN loss Note: Based on this material balance, it is assumed that no AN is emitted to atmosphere from fugitive emissions, other than what is determined above. The amount of hydrocarbon sent to waste is probably overestimated due to inaccuracies in calculation of VE-N portion of the waste. DEQ-CFW 00086641 Vinyl Ethers South Air Emissions Inventory Fugitive Emissions Page 5 of 5 D. Tnf.1 Fnnifivo Fmiscinne Emission Source Total Emissions lb VOC Condensation Tower 1,990 Agitated Bed Reactor & Refining 3,769 AN 187 Total 5,947 E. Speciated Equipment Emissions Summary Nafion® Compound E ui ment Emissions lb VOC lb HF COF2 79 48 PAF 77 13 HFP 16 0 HFPO 510 0 PMPF 862 73 PEPF 360 25 HFPO Dimer 9 0.5 MD 81 4 HydroPEVE 16 0 PPVE 16 0 PEVE 1,722 0 PMVE 2,012 0 AN 187 0 TOTAL 5,947 163 • • DEQ-CFW 00086642