Method for cooling and separating chlorides and fluorides from ammoniacal gas
AssigneeFirma Carl Still GmbH & Co. KG
InventorsRobert Karger, Horst Dungs
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Abstract
A method and device of cooling and separating chlorides and fluorides from ammoniacal gas produced in the carbonization gasification of coal includes the addition of an aqueous salt solution having a concentration of at least one of chlorine and fluorine ions up to saturation to the ammoniacal gas in a color to form a salt solution enriched with chlorides, fluorides and ammonia compounds and a treated gas, and removing at least part of the enriched solution from the cooler.
Claims22
A method of cooling and separating chlorides and fluorides from an untreated ammoniacal gas produced in the carbonization or gasification of coal comprising the steps of cooling the gas, said cooling step including directly adding a concentrated aqueous salt solution having a high concentration of at least one of chlorine and fluorine ions close to saturation for the temperature of the solution to the ammoniacal gas in a cooler (a) to form a first salt solution enriched with chlorides, fluorides and ammonia compounds and a treated gas, and (b) removing at least part of the enriched solution from the cooler.
Dependencies are inferred from the claim text.