VACUUM MASS-TRANSFER COLUMN Russian patent published in 1998 - IPC

FIELD: interaction of systems gas(vapor)-liquid in processes of absorption, rectification, in particular, vacuum rectification; may be used in chemical, petrochemical, food and other allied industries. SUBSTANCE: column includes vertical body accommodating in tiers centrifugal lattices with perforations in the form of arched slots with convexity upward and tangentially directed axes and located over concentric circumferences. Located between centrifugal lattices are centripetal perforated lattices made in the form of cones oriented with their vertexes down and perforations in the form of arched slots with convexity upward and their axes directed at an acute angle to generators, from periphery to center, to one and the same side. Centrifugal lattices are made in the form of cones oriented with their vertexes upward and with generator at an acute angle to horizontal. Located above centrifugal lattices are deflecting perforated discs in the form of truncated cones oriented with large base upward and with central holes outer diameters adjacent to column walls. Centrifugal lattices have perforations in the form of arched slots with convexity upward and their axes directed at an acute angle to radius from periphery to center, to one and the same side. Installed above centripetal lattices are deflecting perforated cones oriented with their vertexes upward, and angles of inclination of generators to horizontal are smaller than angles of inclination of generating lines of centrifugal lattices with outer diameter smaller than body inner diameter. Perforations of deflecting cone are made in the form of arched slots with convexity upward and with their axes directed at an acute angle to generators from center to periphery to one and the same side. Angle of generator with respect to horizontal of cones of centripetal lattices is two times as large as angle of generator to horizontal of cones of centrifugal lattices. EFFECT: higher efficiency of mass transfer between gas(vapor) and liquid. 11 dwg