## Ms. Renee Shealy November 2,2007 Page 3

recovery boilers are firing low sulfur oil. The potential operating scenario shows the amount ofhigh sulfur fuel oil that can be burned in No. 1 Recovery Boiler in order to meet its SO2 PSD limit. The low sulfur fuel oil limit necessary for the No. 9 Recovery Boiler BART exemption was based on a short term hourly rate if the boiler was on fuel oil for 24 hours, which may occur on occasion; however, this does not correlate to an annual limit because the main function of the recovery boiler is not to bum fuel oil all of the time. The last ten years of fuel oil burning in No. 9 Recovery Boiler is included to determine the highest volume of fuel oil burned in one year. Also note that over the last 10years the highest actual fuel oil burning year on No. 1 Recovery Boiler is also less than the value used in the calculations.

Analysis Assumptions

1) All fuel oil burned in the recovery boilers was during startup or shutdown conditions 2) All fuel oil burned in No. 9 Recovery Boiler is low sulfur No. 6 fuel oil 3) When either recovery boiler was on low sulfur No. 6 fuel oil all three sources were burning that same oil. 4) Low sulfur fuel oil = 

## 0.5% sulfur 5) High sulfur fuel oil = 

## 2.1% sulfur 6) SO2emission factor = 

## 157s (AP-42, Fifth Edition, Volume I, Chapter 1,External Combustion Sources, Table 1.3-1) 7) The last 12month fuel oil pricing was used to determine an average fuel oil cost 8) SO2emissions in the lime kilns are reduced by 98.6%

Using these assumptions, changing from high sulfur No. 6 fuel oil to low sulfur No. 6 oil in the No. 1 Recovery Boiler will cost $7,463 per ton of SO2 emissions removed based on the actual operating scenario and $3,359 per ton of SO2emissions removed on a potential operating scenario. Both scenarios are above the $2,000 per ton SO2emissions removed required to implement the change.

Other possible fuel switches include No. 2 fuel oil, which is more expensive (-$2.45 per gallon) and would generate the same SO2emissions as low sulfur No. 6 fuel oil. It would also require minor equipmentloperating modifications. Natural gas is a possible fuel, which is also more expensive than high sulfur No. 6 

## fuel oil (-$8.1 l/MMBtu vs. -$7.93/MMBtu) but currently cheaper than low sulfur No. 6 fuel oil (-$8.11/MMBtu vs. -$8.53/MMBtu). Natural gas prices have been highly variable over the past several years. Current costs would not necessarily be sustainable. Furthermore, the recovery boilers are not equipped to bum natural gas and would require extensive equipment changes. The natural gas option is assumed to be a high cost option due to fuel cost uncertainty and equipment modifications.

## Ms. Renee Shealy November 2,2007 Page 4

At this time no other SO2controls are technically feasible on a recovery boiler. Furthermore, the fuel oil switch required for the BART exemption on No. 9 Recovery Boiler significantly reduces (46.4%) the SO2emissions that are in the VISTAS emissions inventory for 2002 and 2018. This reduction alone may drop the MeadWestvaco facility out ofthe area of influence (AOI).

BART = 

## 1,450 TPY VISTAS 2002 = 

## 2,3 15 TPY VISTAS 201 8 = 

## 2,706 TPY

If you have any questions or require additional information, please contact me at 843-745- 3 139 or electronically at dam20@meadwestvaco.com.

Sincerely,


# -3

/ 

### - 

# -+74 1 

# /-

Duane Mummert, P. E. Business Unit Environmental Lead

Attachments

# Current Operating Scenario

Based on previous 12 

### months



## Fuel Oil High Sulfur Low Sulfur Total

Lime Kilns 6,131,574 978,250 7,109,824 Recovery Boiler 556,249 1,717,771 2,274,020 Average $/gal $1.19 $1.28

Total Costs $7,958,509 $3,450,907 $1 1,409,416



## Sulfur Dioxide Emissions (Tons)

Lime Kiln SO2 14.2 0.5 14.7
Recoverv Boiler SO, 9 1.7 67.4 159.1
Total SO, (Tons) 105.8 68.0 173.8



# Low Sulfur Operating Scenario

Fuel Oil High Sulfur Low Sulfur Total

Lime Kilns 0 7,109,824 7,109,824 Recovery Boiler 0 2,274,020 2,274,020 Average $/gal $1 .I9 $1.28

Total Costs $0 $12,011,320 $1 2,011,320



## Sulfur Dioxide Emissions (Tons)

Lime Kiln SO2 0.00 3.91 3.9 Recovery Boiler SO2 0.00 89.26 89.3
Total SO, (Tons) 0.00 93.16 93.16



## SOz Reduction (tons) 80.65 Cost Difference $601,904 Control Costs ($/ton) $7,463

# Potential Operating Scenario

Fuel Oil High Sulfur Low Sulfur Total

Lime Kilns 11,431,500 1,708,500 13,140,000 Recovery Boiler 2,895,950 3,000,000 5,895,950 Average $/gal $1.19 $1.28

Total Costs $1 7,049,666 $6,026,880 $23,076,546



## Sulfur Dioxide Emissions (Tons)

Lime Kiln SO2 26.4 0.9 27.3 Recovery Boiler SO2 477.4 117.8 595.1



### Total SO2(Tons) 503.8 118.7 622.5



# Low Sulfur 

# Operating Scenario

Fuel Oil High Sulfur Low Sulfur Total

Lime Kilns 0 13,140,000 13,140,000 Recovery Boiler 0 5,895,950 5,895,950 Average $/gal $1.19 $1.28

Total Costs $0 $24,366,016 $24,366,016



## Sulfur Dioxide Emissions (Tons)

Lime Kiln SO2 0.0 7.2 7.2 Recovery Boiler SO, 0.0 231.4 23 1.4



### Total SO2(Tons) 

### 0.0 238.6 238.6



## SO2 Reduction (tons) 383.83 

## Cost Difference $1,289,471 Control Costs ($/ton) $3,359

# No. 

# 6 Fuel Oil 

# Consum~tion 

# 1011106

# - 9130107

Production Date 

### gallons

Page 1 

### of 8 

### Reco~ery'Wfk#~* s:d 

### No. Total 

### gallons ' 5,369 17,939 11,222 21,532 3,863

0 0 0 0 0 0 0 15,325 9,929

0 0 0 1,965

0 0 0 0 0 0 0 21,463 0 19,533 22,200 2,146 4,721

0 0 15,799 6,615

0 0 0 0 0 0 0 0 0 0 0 

### 0 0 0 

### 1 

## 1 Low 

### Sulfur



## . gallons 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1,965

0 0 0 0 0 0 0 21,463 0 0 22,200 0 0 0 0 15,799 6,615

0 0 0 0 0 0 0 0 0 0 0 

### 0 0 0

# No. 6 Fuel Oil Consumption 10/1/06

# - 9/30/07

Production 

### Date 

### Lime 

### Kiln

Total gallons 22,388



### Page 2 

### of 8

# No. 6 Fuel Oil Consum~tion 10/1/06 

# - 9130107

Page 

### 3 of 

### 8

# No. 6 Fuel Oil Consumption 1011106

# - 9130107
Lime Kiln



### 'NO.5 

### .Taw 

## gall6ns 23,567 24,015 21,502 20,246 22,844 23,905 22,071 22,579 22,686 20,282 21,236 23,133 25,253 22,586 23,236 21,018 21,675 22,728 22,992 22,407 18,386 19,069 22,511 22,576 22,466 22,728 19,266 21,735 21,735 21,850 21,088 17,362 16,397 18,592 17,570 22,738 22,486 21,817 19,174 20,188 21,619 22,304 23,359 23,648 21,854 18,874 15,880 12,877 10.994



### Page 4 

### of 8

# No. 6 Fuel Oil Consumption 1011106

# - 9130107

' 

### Lbmn

4 

### -Total 

## gallons 11,846 12,485 10,938 10,482 12,952 13,334 11,814 10,744 9,482

0 1,028 12,419 11,166 14,305 13,623 13,647 22,148 15,646 21,828 22,316 23,213 21,495 22,350 24,135 23,124 24,081 20,680 18,857 19,829 21,136 19,721 20,932 20,807 21,337 20,646 21,904 21,185 20,431 19,676 19,583 22,854 23,808 22,834 17,876 14,305 20,903 18,156 24,150 22,061



### Page 5 

### of 8

# No. 

# 6 Fuel Oil Consumption 

# 1011106

# - 9130107

PPPcluctia Date

06103107 06/04/07 06/05/07 06/06/07 06107107 06108107 06109107 0611 0107 0611 1107 06112107 06113107 0611 4107 06115107 06116107 0611 7107 06118107 06119107 06120107 06121 107 06/22/07 06123107 06/24/07 06/25/07 06/26/07 06127107 06128107 06129107 06130107 0710 1107 07102107 07103107 07104107 07105107 07106107 07107107 07108107 07109107 07110107 0711 1107 07112107 07113107 07114107 0711 5107 07116107 0711 7107 07118107 07119107 07120107 07/21/07 

### Lime 

### Kiln B&*p&.,. 

## *s



# .,z: ;::ow

0 0 0 0 0 0 0 0 0 0 0 0 6,255 7,200 9,240 7,200 4,487 4,487 8,000 4,487

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### Lime Kiln No. 5 

### Total gallons 24,318



### Page 6 

### of 8

# No. 6 Fuel Oil Consumption 10/1/06 

# - 9/30/07

No.4 Total 

### galbs 

# -2
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3,197 5,545 6,572 7,054 7,063 7,063 6,672 6,216 6,216 6,216 6,636 6,215 6,215 6,215 6,215 5,320

0 0 0 0 0 0 0 0 0 0 0 0 

### Lime Kiln 

### &NQ. 5 

### TOW
--a+*
16,182 17,691 14,772 22,661 16,569 15,685 17,220 19,387 21,122 19,734 11,701 12,601 19,389 22,375 22,375 18,755 17,193 15,015 21,787 22,263 22,974 22,974 11,443 0 0 0 0 0 0 0 0 0 0 0 0 0 15,947 20,549 20,213 21,324 20,664 16,853 23,405 22,420 22,953 23,011 23,028 0 0 

### Reco

20,337 35,432 17,785 40,721 8,053 33,151 0 0 0 16,359 0 16,821 0 0 0 0 0 0 0 0 14,137 0 0 0 0 0 0 0 0

0 0 21,900 0 0 0 0 0 0 0 22,188

125 0 3,169 13,918 0 0 0 0

Page 7 of 8

## y Boiler h-1 

### %ow Sulfw

0 35,432 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21,900 0 0 0 0 0 0 0 22,188 0 0 3,169 13,918 0 0 0 0

# No. 

# 6 Fuel Oil 

# Consumption 

# 1011106

# - 9130107

Production Date

09/09/07 09110107 0911 1 107 09112/07 09113/07 0911 4/07 09115/07 09116/07 09117/07 09118/07 09119/07 09/20/07 0912 1 107 09/22/07 09/23/07 09/24/07 09/25/07 09/26/07 09/27/07 09/28/07 09/29/07 09/30/07 

### Total

High Sulfur

No. 6 Oil Lime 

### Kiln No. 4 

### Total

" 

### rga~icini 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### 159.986 Lime Kiln No. 5 

### Total gallons 17,878 23,797 23,570 22,710 20,312 20,709 17,853 20,118 22,286 24,071 22,486 21,827 22,371 21,068 23,462 24,472 24,684 24,390 23,346 23,316 22,47 1 22,471 

### 6,949,838

LOW 

### Sulfur 

# I

No. 6 Oil 

# I Total

I I 2,757.021 

# 1
9.286.072 Purchased

61,000 

# I -97,772 Inventory Change

1.717.771 

# 1 2,274.020 

# I
~ecovery Boilers

978.250 

# 1 7,109,824 

# 1
~ime Kilns 

### Recovery

### Wer NO.

### 9 '
" 

### Low 

## sum gallons 0 0 0 0 0 0 0 0 33 1

0 4,106

0 0 0 0 47 0 0 0 0 0 0 

### 1,337,827

2,696,021 

### Total 

### Oil Burned 

### 9,383,844

Page 8 of 8 9,383,844 Total Oil Burned