Patent ID: 9249069
Filing Date: 2016-02-02
CPC Classification: C07C,C10G

Claim Text:
1. A process for the removal of high boiling hydrocarbons from water-soluble solvent streams in an industrial process which comprises a gas scrubbing process utilizing an absorbtion column and a scrubbing medium comprising a water-soluble solvent, the process comprising: withdrawing a partial stream of the water-soluble solvent containing accumulated high boiling hydrocarbons from the absorbtion column; feeding said partial stream of water-soluble solvent and water to a tank, wherein an aqueous phase, and a non-aqueous hydrocarbonaceous phase containing high boiling hydrocarbon are formed; withdrawing the non-aqueous hydrocarbonaceous phase from the tank; recirculating the aqueous phase from the tank to the water-soluble solvent used in the gas scrubbing process, at a recirculation ratio such that an allowable water concentration in the water-soluble solvent is not exceeded, the aqueous phase not having been subjected to distillation prior to recirculation, combining the recirculating aqueous phase from the tank with a further partial stream of solvent containing high boiling hydrocarbons such that the combined streams have a water concentration below 0.5 wt. %; and removing water after said step of recirculating by contact with a dry feed gas stream input into the absorbtion column.