Patent ID: 9598298
Date: 2017-03-21
CPC Classifications: C02F,Y02W

Claim:
1. A process for treating wastewater containing hydrocarbons from the group of compounds referred to as BTEX, comprising benzene, toluene, ethylbenzene and xylene aromatic compounds, this wastewater originating from the production or conditioning of natural gas, the process comprising subjecting the wastewater to stripping by a combustible gas in a stripper such that the hydrocarbons are removed from the wastewater by transfer into the combustible gas and the combined combustible gas and hydrocarbons are combusted, wherein: the wastewater entering the stripper has a soluble BTEX content of less than or equal to 1200 ppm, the stripping combustible gas, prior to the stripping, comprises aromatic compounds and has a BTEX content of between 1,000 ppm and 15,000 ppm, and the weight ratio of the stripping combustible gas to the wastewater is less than 10%, and the water which leaves the stripper has a soluble BTEX content of less than or equal to 30 ppm.