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Making Hydrogen with Nuclear Energy for Liquid Fuels
Charles Bolthrunis Process Consultant Shaw Energy & Chemicals NHA Annual Hydrogen Conference Sacramento, CA April 2, 2008
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Roadmap Hydrocarbon processing needs Pieces to the puzzle
Heat source Water splitting process Coal and gas to liquids process The driver: comparison of fuels Integration strategies The liquid fuels market and the price of crude Study cases, results and sensitivities
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Getting to the Hydrogen Economy
The Perfect is the enemy of the Good Hydrocarbon fuels will be with us for a long time to come Needs: Reduce CO2 Conserve hydrocarbon resources Add carbon-free energy to fuel production by means of Hydrogen
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The Nuclear Answer Hydrocarbon processing needs:
Hydrogen Energy Centralized supply Carbon dioxide reduction Best answered by a high-temperature nuclear heat source
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Pebble Bed Modular Reactor (PBMR)
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Important PBMR Features
Inherent safety allows siting close to process facilities High temperature good for reforming applications Non-reactive helium heat transfer medium can be used in process equipment Small size (500MWth) is appropriate for many applications
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Hybrid Sulfur Cycle
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Coal and Gas-to-Liquids Chemistry
CH (coal) + H2O 1½ H2 + CO (Steam Gasification) CO + H2O H2 + CO2 (Water Gas Shift) CH4 + H2O CO + 3H2 (Steam Methane Reforming)
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Coal and Gas-to-Liquids Flowsheet
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Comparison of Fuels
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Nuclear Coal- and Gas-to-Liquids
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Nuclear Coal- and Gas-to-Liquids Savings
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Gasoline Pump Price Contributors
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Crude Oil and Gasoline Price Relationship
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Gasoline from Coal (H2 from Coal)
Syngas Water Gas Shift Acid Gas Removal Coal H2 Gasifiers Syngas Fischer Tropsch Coal Gasoline O2
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Gasoline from Coal and Natural Gas (H2 from Natural Gas)
Syngas Acid Gas Removal Natural Gas SMR Syngas Syngas Fischer Tropsch Coal Gasifiers Gasoline O2
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Gasoline from Coal and Nuclear SMR (H2 from NG)
Natural Gas Syngas SMR Nuclear Syngas Fischer Tropsch Coal Gasifiers Gasoline O2 O2
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Gasoline from Coal and Nuclear Water Splitting (H2 from Nuclear)
Syngas Fischer Tropsch Coal Gasifiers Gasoline
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Study Parameters Crude price: $100 per barrel
Carbon penalty: $50 per ton CO2 Cost of hydrogen : $5 per kg Cost of nuclear heat: $7 per million BTU
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Comparison of Gasoline Pump Price Contributions
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CTL Processing Margin
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NG+CTL Processing Margin
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Nuclear CTL Processing Margin
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Take-aways Nuclear energy can reduce the carbon foot print of hydrocarbon fuels in the not too distant future Current crude prices leave a large margin for the economic development of synthetic fuels including incorporating nuclear energy Nuclear hydrogen looks competitive for synfuels applications at about $4.50/kg
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THANK YOU
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