DEVICE FOR GAS-FLUID EXTRACTION AND METHOD OF GAS-FLUID EXTRACTION Russian patent published in 2014 - IPC B01D11/04 G01N30/06 

FIELD: process engineering.

SUBSTANCE: invention relates to fluid treatment. Proposed device comprises phase components feed and discharge means and tubular flow extraction chamber with fluid and carrier gas feed and discharge pipes. Extraction chamber is placed vertically in thermostat. It features hydrophilic inner surface and taper at top end aligned with capillary pipe so that a round slot is formed, or with funnel furnished with hollow cone secured so that a circular slot is formed between funnel surface and cone surface. Gas unions are arranged at acute angle to chamber axis while relative to chamber surface they are fitted tangentially. Method of extraction comprises feed of components into extraction chamber in countercurrent and discharge of carrier gas therefrom enriched in volatile components. Note here that tubular extraction chamber temperature is stabilised. Fluid flow forced into said chamber is converted into coaxial flow flowing over its concave surface in thin film while carrier gas flow is swirled in upward spiral. Mass exchange is executed at countercurrent of phase components or at stationary has phase.

EFFECT: increased extraction and higher sensitivity of analytic systems.

5 cl, 5 dwg