Procedure and systems for supercritical water oxidation of a stream containing oxidable material

摘要

A method for supercritical water oxidation comprises the steps of: causing a first process stream containing water and organic material to flow in a reaction chamber ( 11 ); adding a first flow of oxidant to the first process stream in stoichiometric shortage; reacting the organic material in the first process stream with the oxidant; adding a second process stream containing water and organic material to the reacted first process stream, the second process stream having a temperature which is lower than a temperature of the first process stream to thereby reduce a temperature in the reaction chamber; adding a second flow of oxidant to the process streams; and reacting organic material in the first and second process streams with the second flow of oxidant.