A method and apparatus are disclosed for recovering pure naphthalene from
hot crude coke oven gas. The hot crude coke oven gas is directly cooled
by means of sprinkling water directly thereon, and the naphthalene is
recovered by subsequent filtering out of tar and other impurities,
followed by cooling to obtain crystalline pure naphthalene. More
specifically, after direct cooling of the hot crude coke oven gas, the
gas is then guided through an electrofilter to be subsequently cooled in
such a manner that the naphthalene contained in the crude coke oven gas
is separated from the gaseous phase and is obtained in the form of pure
naphthalene crystals without any required additional treatment.