Patent ID: 7892335
Filing Date: 2011-02-22
Classification: C02F,C11B,C11C

Abstract:
1. An apparatus for the transfer of organic compounds from a first liquid phase to a gaseous phase and from said gaseous phase to a second liquid phase, comprising a packed stripping column ( 2 ) having a bottom end and a top end, a housing ( 5 ) enclosing said packed stripping column ( 2 ), a shell ( 1 ) surrounding said housing ( 5 ), a means for introducing a gaseous phase from the bottom end of said packed stripping column ( 2 ), a distributor ( 4 ) for distributing said liquid phase onto said packed stripping column ( 2 ) causing said liquid phase to trickle down said packed stripping column ( 2 ) counter-currently to the flow of the gaseous phase and causing the gas stream leaving said packed stripping column ( 2 ) at its top end to have a higher content of organic compounds than the gaseous phase introduced at the bottom end of said packed stripping column ( 2 ), and one or more ducts ( 9 ) located between said housing ( 5 ) and said shell ( 1 ) and allowing the gaseous phase leaving said packed stripping column ( 2 ) to flow downwards, said apparatus further comprising a packed scrubber ( 3 ) having a bottom end and a top end, said housing enclosing said packed scrubber ( 3 ), said shell ( 1 ) surrounding said housing, one or more ducts ( 26 ) located between said housing and said shell ( 1 ) and allowing the gaseous phase to flow downwards to the bottom end of said packed scrubber ( 3 ), a distributor ( 12 ) on top of said packed scrubber ( 3 ), causing said second liquid phase to trickle down said packed scrubber ( 3 ) counter-currently to the flow of the gaseous phase and causing the gas stream leaving said packed scrubber ( 3 ) from its top end to have a lower content of organic compounds than the gaseous phase entering the bottom end of said packed scrubber ( 3 ).