Process for the purification of an aqueous stream coming from the fischer-tropsch reaction
A liquid and reactive technology, applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, water/sludge/sewage treatment, etc., can solve the problem that organic compounds cannot be completely discharged and/or regenerated
Inactive Publication Date: 2011-02-02
ENI
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Abstract
The present invention relates to a process for the purification of an aqueous stream coming from the Fischer-Tropsch reaction which comprises: feeding the aqueous stream containing organic by products of the reaction to a fractionating distillation column or to a stripping column,- condensation of the vaporized stream leaving the head of the column and the removal of a distillate enriched in the heaviest by-products,- feeding the partially purified aqueous stream leaving the bottom of the distillation column, at the head to one or more sensible contact exchangers,- sending a process gas in countercurrent to the tail of the exchanger at a temperature lower than that of the aqueous stream,- sending the process gas enriched in water and part of the residual organic product leaving the head of the exchanger to the Fischer-Tropsch synthesis plant of hydrocarbons,- sending the purified colder water leaving the exchanger directly to further treatment.
Application Domain
Multistage water/sewage treatmentLiquid hydrocarbon mixture production +3
Technology Topic
ChemistryDistillation +3
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