Patent ID: 6121179
Filing Date: 2000-09-19
Classification: B01J,C01B,C02F,Y02P

Abstract:
A method of restoring activity to activated carbon particles, the activated carbon particles comprising at least one organic contaminant, comprising:treating the activated carbon particles with water in a first reactor to remove organic contaminant from the activated carbon particles and entrain the organic contaminant in the water, wherein the first reactor operates at a temperature between about 900.degree. F. (482.degree. C.) and about 1200.degree. F. (650.degree. C.), and wherein the first reactor operates at a pressure sufficient to maintain supercritical conditions for water, and wherein the activated carbon particles are mixed in the water; andseparating the activated carbon particles from the water, wherein organic contaminant removed from the activated carbon particles remains in the water, wherein the temperature during separation is maintained at a temperature of at least about 900.degree. F. (482.degree. C.), and wherein the pressure during separation is sufficient to maintain supercritical conditions for water.