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Author Topic: US Navy Investigates Making Jet Fuel From Seawater.  (Read 7467 times)

Offline ResinRat2

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US Navy Investigates Making Jet Fuel From Seawater.
« on: October 10, 2012, 02:22:32 AM »

I am posting this just for information purposes.

Interesting technology. This would allow them to create their own Jet Fuel while at sea:


http://oilprice.com/Energy/Energy-General/U.S.-Navy-Investigates-Making-Jet-Fuel-from-Seawater.html


The process envisioned would catalytically convert carbon dioxide and hydrogen directly to liquid hydrocarbon fuel used as JP-5 by extracting CO2 to produce H2 gas from seawater and subsequently catalytically converting it into jet fuel by a gas-to-liquids process. The reduction and hydrogenation of CO2 to form hydrocarbons is accomplished using a catalyst that is similar to those used for Fischer-Tropsch reduction and hydrogenation of carbon monoxide. By modifying the surface composition of iron catalysts in fixed-bed reactors, NRL has successfully improved CO2 conversion efficiencies up to 60 percent.
Interesting link to a paper on the Fishcher-Tropsch reaction:

http://web.anl.gov/PCS/acsfuel/preprint%20archive/Files/42_2_SAN%20FRANCISCO_04-97_0680.pdf

Downside: reaction temperatures are 200-400°C. Not overunity, but allows an alternative route for fuel production