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Priority claimed from PCT/EP2009/000389external-prioritypatent/WO2009090104A1/en
Application filed by Eni SpafiledCriticalEni Spa
Publication of TN2010000336A1publicationCriticalpatent/TN2010000336A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
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 partial1y 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.
TNP2010000336A2009-01-142010-07-19Process for the purification of an aqueous stream coming from the fischer-tropsch reaction
TN2010000336A1
(en)
Vinyl acetate production process comprising: contacting a feed stream of acetic acid and hydrogen at elevated temperature with hydrogenation catalyst, enriching the stream with ethyl acetate, contacting the stream with a cracking catalyst, and separating the acetate from vinyl