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Or maybe it'll be algae, essentially pond scum, fueling them. Or jatropha, a smelly and poisonous subtropical plant with nicknames such as "black vomit nut" or "bellyache bush." Or liquid fuel converted from coal or natural gas, using a technology pioneered by Adolph Hitler's Nazi war machine.
Which fuel is best for an airline may depend on location, he says. In Asia, camelina is abundant. In Australia, Mexico and parts of South America, where conditions for growing jatropha are ideal, it likely will be the primary source of alternative fuels, Remy says. In North America, synthetic fuel may make more sense because coal and natural gas are abundant. (We think so, of course.)
Longer term, algae may be what fuels the engines in U.S. airline jets. It can be produced in high volume, and the USA has plenty of space to grow it.
"Jatropha and other grains will be on the market sooner, but only in the tens or hundreds of millions of gallons," says UOP's Holmgren. "Algae will be produced in the billions of gallons a little bit further down the road."
Algae is among the fastest-growing organisms on Earth. It takes up little space relative to its production capacity. Some strains can go from incubator to harvest in 14 days. And it grows best in brackish water, either in ponds, in a high-tech greenhouse environment known as a bioreactor, or on "algae farms," where nutrient-filled water flows through miles of tubes winding around a few acres of land.
Tim Zenk, vice president at Sapphire Energy, the San Diego start-up that produced the algae fuel used in the Continental flight, says his company's investors are motivated in part by environmental concerns.
"We think we'll get 3,000 gallons (of biocrude) a year per acre," Zenk says. "You're going to see very large scales of production." - - -
Note the "high-tech greenhouse environment known as a bioreactor", mentioned above. That would be one way, as we've suggested, to recycle CO2 coproduced by coal power generation and coal-to-liquid conversion operations, at the points of generation. And, on other, "algal farms" a significant portion of that "3,000 gallons a year per acre" would be recycled CO2, and would earn carbon credits. Moreover, since coal conversion generates other products, such as urea, which can be, and in China os being, used as fertilizer, a coal-to-liquid plant should be able to make the bugs grow in abundance.
And, finally, we have earlier documented Tyson Food's work on developing diesel fuel from chicken renderings. An in-flight meal for the plane itself? We would rather it chewed on chunks of coal, but, compared to coal, the amount of chicken fat available for processing would be small. Combining the two in a synthetic fuel manufacturing facility would be another synergy, where what is essentially a coal conversion processor could help clean up what might otherwise be only an unpleasant waste in need of disposal. The coal makes the environmental clean up opportunity possible.
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No. 98—830
AMOCO PRODUCTION COMPANY, on behalf of it-
self and the class it represents, PETITIONER v. SOUTHERN UTE INDIAN TRIBE et al.
ON WRIT OF CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE TENTH CIRCUIT
[June 7, 1999]
Justice Kennedy delivered the opinion of the Court.
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"Palaniraja Sivakumar, Heon Jung, John W. Tierney and Irving Wender
Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA
Abstract
An investigation has been made of the coprocessing of paper and other lignocellulosic wastes, and also of waste plastics, with coal via the COsteam route—treatment with CO, water and alkali at elevated pressures. The liquefaction of lignocellulosic and polymeric wastes was studied separately and then with the addition of coal. High conversion of lignocellulosic wastes could be achieved at 400°C. Polypropylene and polystyrene are completely converted to liquids and gases at 400°C; however, the conversion of high density polyethylene requires a temperature of 445°C. Coprocessing of Wyodak coal and lignocellulosics at 400°C did not change the yields or product quality compared with the liquefaction of Wyodak coal or lignocellulosics alone. However, the coprocessing of Wyodak coal and polypropylene at 400°C resulted in a decrease in coal conversion accompanied by an increase in the asphaltene fraction from coal. It is possible that the combination of free radicals from the polymer with coal fragments is responsible for this result. However, coliquefaction of Wyodak coal with less than 30% high density polyethylene at 445°C resulted in good coal conversion (85–90%) and did not increase the asphaltene yield from coal."
This, from the University of Pittsburgh. Another respected local institution, like WVU, showing us that coal can be converted into liquid fuels; and, renewable biomass (cellulose) and wastes can be combined with the coal to not only provide more raw material for liquid fuels, but to make the conversion process more efficient and profitable; and, through the inclusion of cellulose, to close the Carbon cycle.
Using this scenario, coal can lead us into a liquid fuel future that could ultimately rely in large part on renewable biomass for it's raw material, and clean up all our waste plastics as part of the bargain.
