| abstract |
The present invention provides for the use of coal liquid fuels blended with alcohols such as ethanol, as an alternative to gasoline and other fuels. The coal liquids are obtained by distilling coal tar, or by solvent extraction of coal. A further aspect is a solvent extraction process to create coal liquids to be used as a petroleum substitute. In addition the steps of delayed coking, hydrothermal cracking, hydrodelalkylation, and catalytic cracking and other refining techniques can be used to modify the aromatic coal liquids, making them more aliphatic and hence more similar to petroleum. A preferred embodiment of the coal liquid gasoline substitute is comprised of 85% ethanol and 15% coal-derived counterparts. It is a further object of the present invention to provide a method of solvent extraction for coal liquids to be processed for use as a petroleum replacement |