C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 2/00 (2006.01) C07C 1/04 (2006.01) C10G 33/06 (2006.01)
Patent
CA 2469271
The invention provides a method for separating at least a fraction of non-acid chemicals (NAC's) from at least a fraction of a gaseous raw product produced during a Fischer-Tropsch (FT) reaction or a condensate thereof including at least the steps of feeding at least the fraction of the gaseous raw product or the condensate thereof to a distillation column at a feed tray, withdrawing a liquid stream from the column from a tray located above the feed tray, separating the liquid stream into an aqueous phase and an NAC-rich phase, and returning the aqueous phase to the distillation column at a tray below the tray from which the liquid stream was withdrawn.
L'invention concerne un procédé destiné à séparer au moins une fraction d'agents chimiques non acides (NAC) à partir d'au moins une fraction d'un produit brut gazeux produit au cours d'une réaction de Fischer-Tropsch (FT) ou d'un condensé correspondant. Ce procédé consiste à acheminer au moins la fraction du produit brut gazeux ou son condensé vers une colonne de distillation au niveau d'un plateau d'alimentation, à extraire un courant liquide de la colonne à partir d'un plateau situé au-dessus du plateau d'alimentation, à séparer le courant liquide en une phase aqueuse et une phase riche en NAC, puis à réacheminer la phase aqueuse vers la colonne de distillation au niveau d'un plateau situé en dessous du plateau à partir duquel le courant liquide a été extrait.
Roelofse Andries Johannes
Russell Richard Alan
Sasol Technology (pty) Ltd.
Sim & Mcburney
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