FORFARANDE FOR BEHANDLING AV ETT FLODE AV GASFORMIGT KLORERAT KOLVETE, SOM INNEHALLER VETEKLORID, VATTENANGA OCH KOLDIOXID FOR AVLEGSNANDE AV VETEKLORID DERUR

摘要

A chlorinated hydrocarbon stream is cooled to condense water vapor and a major portion of the hydrogen chloride as aqueous hydrogen chloride. The uncondensed portion is further cooled by direct quenching with aqueous quench liquid to condense further water vapor, with the quench circuit being maintained on the alkaline side by the addition of base.