PEGGY GREB / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY PEGGY GREB / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY
Editorial use only.
EDITORIAL USE ONLY. Biofuel research. Researchers operating a thermochemical reactor that has been designed to convert crop residues into biofuels and hydrogen fuel. The plant material is being poured into the central reactor at upper left. At centre is a dry ice bath being used to condense the fuels produced by the reactor. At lower left is a computer screen showing a diagram of the system. A typical biofuel is ethanol, which is used in motor vehicles as an alternative to fuel obtained from oil deposits. If obtained from renewable sources with minimal environmental impact, biofuels can cause less damage than oil products. Photographed in the USA.
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