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AssigneeCiba Specialty Chemicals Water Treatments Ltd.
InventorsJonathan Heath Veal, Martin David Powell, Simon Broughton, Gareth Ian Naylor
Estimating the term…
Apparatus and method for degassing liquids particularly cationic monomers. Fluid comprising liquid to be degassed together with sweep gas is admitted tangentially into a column (10) and forced down the column by a tubular baffle (16) which defines, with the inner wall of the column, an annulus (18) that is closed at its top (20). After passing to the bottom of the annulus the fluid forms an even film over the inner surface of the column and gas disengaging from the liquid can rise up the column while liquid accumulates at the bottom of the column. To assist the disengagement of the gas from the liquid the column is preferably of increasing cross section towards the bottom so that the thickness of the film is also reduced.
An apparatus for degassing liquids comprising a column, inlet means for admitting liquid to be degassed together with sweep gas tangentially into the column, the sweep gas having been mixed with the liquid prior to admission to the column, a tubular baffle within the column adjacent the inlet means, for directing fluid from the inlet means down the column whereby gas disengages from the liquid and rises through the baffle to the top of the column and degassed liquid accumulates at the bottom of the column, wherein the apparatus is in combination with a reactor for polymerizing liquid monomer.
A method of degassing a liquid comprising the steps of admitting liquid to be degassed together with sweep gas tangentially into a column, directing the incoming liquid down the column to form a film on the inner surface of the column whereby gas disengages from the liquid and rises up the column and degassed liquid accumulates at the bottom of the column.
Dependencies are inferred from the claim text.