Mineral oils: processes and products – Refining – Metal contaminant removal
Patent
1994-02-08
1997-02-11
Myers, Helane
Mineral oils: processes and products
Refining
Metal contaminant removal
208253, 208293, 208295, 208302, 208303, C10G 4504
Patent
active
056017014
ABSTRACT:
The invention concerns a process for the elimination of mercury from hydrocarbons by passage of the feedstock with hydrogen over a catalyst then bringing the product obtained into contact with a mercury retention bed, the catalyst comprising at least one element selected from the group constituted by iron, nickel, cobalt, molybdenum, tungsten, palladium, wherein at least 5% is in the sulphide state. Any arsenic present in the feedstock is also eliminated.
In accordance with the invention, the catalyst is simultaneously presulphurated and reduced.
The invention results in a considerable reduction in operation period and high retention efficiency at temperatures between 120.degree. C. and 250.degree. C. and in the presence of 0-1000 mg of sulphur/kg of feed.
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patent: 4709118 (1987-11-01), Yan
patent: 4911825 (1990-03-01), Roussel et al.
patent: 5053209 (1991-10-01), Yan
patent: 5153163 (1992-10-01), Roumieu et al.
patent: 5202301 (1993-04-01), McNamara
patent: 5401392 (1995-03-01), Courty et al.
Boitiaux Jean Paul
Cameron Charles
Cosyns Jean
Courty Philippe
Sarrazin Patrick
Institut Francais du Pe'trole
Myers Helane
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