The Great Plains Synfuels Plant

Claudia BiffertEngineering Manager

2013 Lignite Education Seminar

Agenda

• Products• Demonstrations

2

DAKOTA GASIFICATION COMPANY

Synthetic Natural Gas (SNG)

• Meets pipeline quality • Transported 34 miles southwest to

Northern Border Pipeline• Distributed out of Ventura, Iowa• Facts

Could heat one-half million homesEqual to 28,000 barrels oil

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Liquid Nitrogen

• Mainly used in plant for purging• Cryogenic storage medium• Oil well additive• Artificial insemination• Medical procedures

4Liquid NitrogenLiquid Nitrogen

5

19881992

19962000

20042008

2012 $-

$100,000,000

$200,000,000

$300,000,000

$400,000,000

$500,000,000

$600,000,000

Byproduct Total

Revenue Original

1.86%

2.51%

5.82%

8.58%

43.95%

60.63%

53.92%

37.57%

54.42%

30.89%

30.76%39.54%

11.15% 33.23%

Xenon/Krypton Gases

Halogen Lighting LasersThermal Pane

Windows

Phenol

• Countertops• Plywood/OSB/Insulation• DVDs/CDs• Pharmaceuticals

Cresylic Acid

• Wire enamel solvent• Antioxidants/Vitamin E• Pesticides

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Cresylic AcidCresylic Acid

Naphtha

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• Gasoline blendstock• Solvents

– Paint thinner

• Feedstock for benzene production

Ammonium Sulfate

Anhydrous Ammonia (NH3)• Originally recovered from process

Capacity – 75 ton/day

• In 1997, added additional capacity

Capacity – 1,100 tons/day

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Carbon Dioxide (CO2)…

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-

Revenue Environmental DGC Pipeline

Weyburn

Carbon Dioxide

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Reached a milestone of delivering 25 million metric tons of CO2 on Feb. 24, 2013, at 4:53 a.m.

Tar Oil

14Fuel Oil #6

15

19881992

19962000

20042008

2012 $-

$100,000,000

$200,000,000

$300,000,000

$400,000,000

$500,000,000

$600,000,000

Byproduct Total

Revenue Original

1.86%

2.51%

5.82%

8.58%

43.95%

60.63%

53.92%

37.57%

54.42%

30.89%

30.76%39.54%

11.15% 33.23%

Future Opportunities

• Liquid fuelsDieselGasoline

• Lubricants• Neon/Argon

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Summary

New Products

Urea

SNG Revenue