C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
C25B 1/00 (2006.01) C10G 32/02 (2006.01)
Patent
CA 2291008
The present invention provides for a method of decreasing the Conradson carbon content of metal containing petroleum streams by forming a mixture of the Conradson carbon containing petroleum fraction and an aqueous electrolysis medium containing an electron transfer agent, and passing an electric current through the mixture or optionally through the pretreated aqueous electrolysis medium at a voltage, sufficient to decrease the Concarbon content of the stream. The cathodic voltage is from 0 V to -3.0 V vs. SCE. The invention provides a method for enhancing the value of petroleum feeds that traditionally have limited use in refineries.
Cette invention concerne un procédé permettant de réduire la teneur en carbone Conradson dans des écoulements de pétrole contenant des métaux. Dans ce procédé on forme un mélange constitué de la fraction pétrolière contenant du carbone Conradson et un milieu d'électrolyse aqueux contenant un agent de transfert d'électrons, puis on envoie dans le mélange ou bien dans le milieu d'électrolyse aqueux prétraité un courant électrique à une tension suffisante pour réduire la teneur en carbone Conradson de l'écoulement. La tension cathodique se situe entre 0 V et -3,0 V contre SCE. Le procédé de cette invention permet d'accroître la valeur de charges de pétrole dont l'utilisation est traditionnellement limitée dans les raffineries.
Greaney Mark A.
Olmstead William N.
Borden Ladner Gervais Llp
Exxon Research & Engineering Company
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