PLANT AND METHOD FOR EXTRACTION OF BIO-MASS AND METHOD OF REMOVAL OF SOLVENT RESIDUE Russian patent published in 2004 - IPC

FIELD: chemical industry; extraction of bio-mass. SUBSTANCE: proposed plant is made in form of system with closed loop which includes the following components connected in series: extractor used for bringing solvent or mixture of solvents in contact with bio-mass, evaporator for separation of solvent and bio-mass extracting agent from each other, compressor for compression of gaseous solvent for return of it to extraction apparatus. Plant includes additional fluid medium transfer main which is used for delivery of hot fluid medium from part of system located at distance from extractor to solvent contained in extractor and to one or several control units for control of delivery of hot fluid medium. Transfer main is used for connection of exhaust passage of compressor and extractor. Specification gives description of method for extraction of bio-mass in this plant, as well as method for removal of solvent residue from plant. EFFECT: reduction of level of residual solvent upon completion of extraction process. 19 cl, 2 dwg