FRACTIONAL DISTILLATION | +--------------------+-----------------+--------------------+----+------------------+ | | | | | Crude Naphtha Heavy Crude Natural +-------------+ Cylinder Stock | Naphtha Lamp Oil | Lubricating | | Steam Distillation | | | Distillate | | | Steam Distillation Distillate +-------------+ | +-------+-----+ | Acid | Clay | | | +-----+---+ Treatment Cold Pressing Percolation Gasoline | Bottoms | | | | | | | Bottoms +------+---+ +----+------+ | +------------+ | | | | | | | Naphtha | +------------+ Sludge | Slack Wax +-------------+ | | Distillate | | Naphtha | | | | Pressed | | +------------+ | Distillate | +---------+ Sweating | Lub’g Dist. | | | +------------+ | W W Oil | Process +-------------+ | Acid Treatment +---------+ | | | | +-----+----+ | +-------+---+ +------+---------+ | | | | | | | | Foots | Asphalt | Sludge Deodorized | Oil | +----------+ Naphtha | | | Cylinder | +--------------+ | | Oil | | Crude | | +----------+ | Paraffin Wax | Fractional +--------------+ Distillation | | Clay +----+--------+ Percolation | |