PROCESS FOR REGENERATING A SCRUBBING LIQUID WHICH IS PROVIDED FOR A GAS SCRUB AND IS ENRICHED IN AROMATIC HYCROCARBONS AND ALSO REGENERATION ARRANGEMENT
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United States of America Patent
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Issued Date -
Aug 6, 2015
app pub date -
Jul 11, 2013
filing date -
Aug 9, 2012
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Abstract
The invention relates to a process for regenerating a scrubbing liquid which is provided for a gas scrub and is enriched in aromatic hydrocarbons in a regeneration column, wherein the scrubbing liquid enriched in aromatic hydrocarbons is brought into contact with steam in a first regeneration stage of the regeneration column and the aromatic hydrocarbons are thereby partly removed from the scrubbing liquid, the scrubbing liquid purified in the first regeneration stage is divided into a first stream and a second stream, the second stream is discharged as purified scrubbing liquid for the gas scrub, the first stream is, for the purpose of further regeneration, fed to a second regeneration stage of the regeneration column in which the concentration of aromatic hydrocarbons is reduced compared to the concentration in the second stream by contact with steam, a stream of steam is firstly conveyed through the second regeneration stage and subsequently through the first regeneration stage and the first stream is discharged as more highly stripped scrubbing liquid for the gas scrub.
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