METHOD OF COOLING GASES CONTAINING SOLIDS, TAR AND NAPHTHALENE

摘要

ABSTRACT OF THE DISCLOSUREA method of cooling gases containing solids, tar andnaphthalene is described, wherein the hot gases are treated witha cooling fluid in a direct condenser and are thus cooled. Thecooling fluid leaving the direct condenser is vigorously mixedwith a naphthalene extracting agent and the extract is separatedfrom the circulating fluid by settling out, before the fluid isrecycled to the circulating condenser. The circulating fluid maybe water and the extracting agent used may be tar obtained fromthe tar separator in a subsidiary recovery plant. A deviceincluding a mixer and a conventional tar separator is alsodescribed. Invention improves reliability of method of direct gascooling and the operating periods of the individual parts ofthe system without having to make the parts excessively large.