Institut Francais Du Pe'trole

Institut Francais Du P&eacute;trole

Laurent Savary

Blaise Didillon

Carine Petit-Clair

Denis Uzio

Helene Olivier-Bourbigou

Gerard Hillion

David Proriol

Christophe Gautreau

A process for the selective hydrogenation of diolefinic compounds to mono-olefinic compounds uses a catalyst composition comprising at least one salt of a transition metal from groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally in the presence of a non-aqueous ionic liquid selected from the group formed by liquid salts with general formula QA(in which Qrepresents a quaternary ammonium and/or quaternary phosphonium and Arepresents any anion which can form a liquid salt below 90&#xb0; C.).

Method for selective hydrogenation of polyunsaturated compounds into monounsaturated compounds using a homogeneous catalyst

A process for eliminating mercury and possibly arsenic from a hydrocarbon feed comprises:

Process for capturing mercury and arsenic in a distilled hydrocarbon cut

Process for capturing mercury and arsenic comprising evaporation then condensation of a hydrocarbon-containing cut

The invention concerns a process for eliminating arsenic from a hydrocarbon cut in which said cut is brought into contact with an absorption mass that is at least partially pre-sulfurized and comprises a support and lead oxide. The support, for example alumina, or said mass preferably has a specific surface area in the range 10 to 300 m /g, a total pore volume in the range 0.2 to 1.2 cm /g and a macroporous volume in the range 0.1 to 0.5 cm /g. The lead content of said mass, expressed as lead oxide, is preferably in the range of 5% to 50% by weight. The fraction of the sulfurized mass preferably represents at least {fraction (1/20)}th of the total volume of the absorption mass.

Process for eliminating arsenic in the presence of an absorption mass comprising partially pre-sulfurized lead oxide

Growing community of inventors

Rueil-Malmaison, France

Laurent Savary