OIL ELIMINATOR USING SUPERCRITICAL FLUID

Japanese Patent JP3760121

B2

PROBLEM TO BE SOLVED: To efficiently separate an oil-component from fine solids, to reduce clogging of a filter and to easily recover the oil-component removed solids. SOLUTION: The oil-component eliminator using supercritical fluid has a first vessel 21 which holds the supercritical fluid and its pressure, a second vessel 22 which is arranged within this first vessel 21 and houses the treating object a stuck with the oil, the filter 23 which is disposed to cover the aperture of the upper part of the second vessel 22 and filters the treating object (a), a supercritical fluid feeding source which feeds the supercritical fluid into the second vessel 22, means which agitates the treating object a stuck with the oil in the first vessel 21 and a vaporization separator 36 which vaporizes the supercritical fluid recovered through the filter 23 from the second vessel 22 then through the first vessel 21 and separates the fluid to gas and the oil- component.