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От
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Исаев Алексей
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К
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Валерий Мухин
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Дата
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26.04.2001 18:09:30
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Рубрики
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WWII;
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Слово "Британике"
Доброе время суток,
"The continuing concern for finding alternative energy sources also has revived interest in the conversion of coal into liquid fuels similar to crude oil. A method that has been extensively evaluated involves pyrolysis and hydrogenation—i.e., causing coal to react with hydrogen at high pressures, usually in the presence of a catalyst. Coal hydrogenation was extensively used in Germany during World War II, but the process has remained commercially unattractive because its cost is significantly higher than that of producing gasoline from petroleum. Since the late 1970s, various other technologies for economical liquefaction of coal have been investigated, particularly in oil-dependent countries possessing extensive coal reserves."
С уважением, Алексей Исаев http://www.geocities.com/Pentagon/2148/