Friday, September 3, 2010             Facebook    Twitter     LinkedIn

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Magazine Article

  

Coal-Based Jet Fuel Approaches Ready Ramp


military aircraft
While Penn State's JP900 fuel was developed for use in high-performance military aircraft, there are no compelling technical barriers to prevent coal-based fuel from being used in commercial jetliners.
Photo courtesy of Airbus Industries.


military aircraft
Combustion tests have shown that coal-based JP900 meets or exceeds almost all specifications for military JP8 and commercial Jet A jet fuels.
Photo courtesy of Pratt & Whitney.


testing vials
Tests show that coal-based JP900 has a flash point higher than required for JP8, a lower viscosity and freezing point and a higher smoke point. The coal-based fuel is also lower in aromatics - compounds such as benzene and toluene - than conventional jet fuels and is almost sulfur free.
Photo courtesy of Energy Institute, Penn State University.



"After the second OPEC oil embargo, we flirted with many alternate technologies during the Carter years, but once OPEC's back was broken as an effective price fixing force, those initiatives died away, even when they worked and made sense," he said.

Since cheap, plentiful oil is a thing of the past, one solution may lie in coal-based fuels. "We clearly have more coal than oil," Barnett said.

Change Takes Time

The switch to coal-based fuels, if it ever comes, will require a monumental paradigm shift in the energy industry.

Barnett doesn't think a switch to coal based fuels will happen commercially until the country is faced with a stable price of five dollars per gallon gas and then only if coal gas could provide the same BTU power at a stable price of about three dollars a gallon.

"It would take that kind of cost differential to drive infrastructure, and regulatory reform," he said.

The bigger issue pertains to the infrastructure—getting coal based fuel into a parallel distribution with petro fuels, assuming the oil-based and coal-based fuels couldn't be mixed for technological or regulatory reasons.

"This will be hugely expensive, at least at first and the government will likely have to fund that," Barnett said.