JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
Aquafuel research. British industrial chemist Paul Day holding a bottle of petroleum diesel (left) and a bottle of 'Aquafuel' (right), a mixture of water and diesel, that he invented in 1999. The emulsion is stabilized by using a derivative of the castor bean. The resulting fuel liquid is less polluting and has greater combustion efficiency than conventional fossil fuels. The fuel is being developed by Aquafuel Research Ltd, a company set up by Paul Day. Large-scale production of the fuel would be most suitable for use in oil-fired power stations.
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