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Application of supercritical fluid technology(1)——Supercritical water oxidation

Supercritical Water Oxidation (SCWO) refers to the reaction of dissolved oxygen and organic wastes in supercritical water to produce non-toxic substances such as CO2, H2O and N2. Water is the most widely used and most important solvent in nature, it is non-toxic, and many The reaction products do not need to be separated, and have a good development trend and prospects in the treatment of organic wastewater waste.

The critical temperature of water is 374.3, and the critical pressure is 22.05MPa. Above this temperature and pressure is the critical area. The supercritical water reaction has strong solvency, high compressibility, and easy separation because many materials to be processed An aqueous solution, in many cases, does not have to separate water from the final product, making supercritical water a very promising reaction medium.