FIELD: chemistry.
SUBSTANCE: cleaning of liquid and solid sediments from porous matrix is performed by matrix heating to (1-1.2)Tcr, where Tcr is critical temperature of the extraction agent used, in a device including throttle device 1, separator 2, compressor or pump 3, separation valve 4, adsorbing extractor 5, with further processing by extraction agent at pressure of (1-10)Pcr, where Pcr is critical pressure of the extraction agent used. Valves 6-9 are installed additionally between adsorbing extractor and throttle device and between compressor or pump and adsorbing extractor, if Tcr is equal to melting point of solid sediments in matrix. Extraction agent flow is directed downflow at Re≤20 and upflow at Re>20.
EFFECT: reduced time of cleaning liquid and solid sediments from matrix at lower power consumption and matrix cleaning in fine dispersion form.
2 cl, 1 dwg
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