C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 7/12 (2006.01) C07C 9/00 (2006.01) C07C 11/02 (2006.01) C10G 25/00 (2006.01)
Patent
CA 2252521
A process for selectively removing nitrogenated and/or sulfurated contaminants from streams prevalently containing hydrocarbons with from 3 to 8 carbon atoms characterized in that it comprises an adsorption step wherein said contaminants are adsorbed by an adsorbent essentially consisting of silica gel at a temperature of between 0 and 150 ~C and at a pressure of between 1 and 20 atm and a regeneration step to remove the adsorbed substances by thermal treatment in a stream of inert gas carried out at a temperature of between 100 and 200 ~C.
L'invention concerne un procédé visant à éliminer de manière sélective des contaminants azotés et/ou sulfurés de courants contenant de manière prévalente des hydrocarbures possédant de 3 à 8 atomes de carbone. Ce procédé se caractérise par une étape d'adsorption dans laquelle les contaminants sont adsorbés par un adsorbant, contenant principalement du gel de silice, à une température comprise entre 0 et 150 ·C et à une pression comprise entre 1 et 20 atm, et par une étape de régénération dans laquelle on élimine les substances adsorbées par traitement thermique dans un courant de gaz inerte à une température comprise entre 100 et 200 ·C.
Piccoli Valerio
Rossini Stefano
Robic
Snamprogetti S.p.a.
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