Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Institute Francais Du Petrole

Nathalie Marchal

Christophe Bouchy

Florent Picard

Blaise Didillon

Slavik Kasztelan

Denis Uzio

Alain Billon

Samuel Mignard

Carine Petit-Clair

Pierre-Henri Bigeard

Stéphane Cremer

A novel process is described which allows selective hydrodesulphurizing gasoline cuts containing sulphur-containing compounds and olefins. The process employs a catalyst comprising a support selected, for example, from refractory oxides such as aluminas, silicas, silica-aluminas or magnesia, used alone or as a mixture, a group VI metal, preferably Mo or W which may or may not be promoted by a group VIII metal, Co or Ni. The catalyst is characterized by a mean pore diameter of more than 22 nm. The process may comprise one or more steps.

Process for hydrodesulphurizing gasoline employing a catalyst with controlled porosity

The invention concerns a process for hydrodesulphurizing a gasoline containing less than 0.1% by weight of sulphur derived from a catalytic cracking unit or other conversion units, said process comprising at least one hydrodesulphurization reactor using a bimetallic catalyst operating at a HSV in the range 0.1 hto 20 h, a temperature in the range 220&#xb0; C. to 350&#xb0; C. and a pressure in the range 0.1 MPa to 5 MPa, and comprising recycling a fraction of the desulphurized gasoline to the inlet to the hydrodesulphurization reactor with a recycle ratio in the range 0.1 to 3 times the flow rate of the gasoline to be desulphurized.

Process for desulphurizing olefinic gasolines to limit the mercaptans content

A process for jointly carrying out selective hydrogenation of polyunsaturated compounds into monounsaturated compounds contained in gasolines, and for transforming light sulphur-containing compounds into heavier compounds by reaction with unsaturated compounds, said process employing a supported catalyst comprising at least one metal from group VIB and at least one non-noble metal from group VIII used in the sulphurized form, deposited on a specific support comprising a metal aluminate of the MAlOtype with a metal M selected from the group constituted by nickel and cobalt, and comprising bringing the feed into contact with the catalyst at a temperature in the range of 80&#xb0; C. to 220&#xb0; C. at a liquid hourly space velocity in the range of 1 hto 10 hand at a pressure in the range of 0.5 to 5 MPa.

Selective hydrogenation process employing a catalyst with a specific support

A process for jointly carrying out selective hydrogenation of polyunsaturated compounds into monounsaturated compounds contained in gasolines, and for transforming light sulphur-containing compounds into heavier compounds by reaction with unsaturated compounds employing a supported catalyst, comprising at least one metal from group VIB and at least one non-noble metal from group VIII used in the sulphurized form deposited on a support and having a controlled porosity, and comprising bringing the feed into contact with the catalyst at a temperature in the range of 80&#xb0; C. to 220&#xb0; C. at a liquid hourly space velocity in the range of 1 hto 10 hand at a pressure in the range of 0.5 to 5 MPa.

Selective hydrogenation process employing a catalyst having a controlled porosity

A process for jointly carrying out selective hydrogenation of polyunsaturated compounds into mono unsaturated compounds contained in gasolines, and for transforming light sulphur-containing compounds into heavier compounds by reaction with unsaturated compounds, said process employing a supported catalyst comprising at least one metal from group VIB and at least one non-noble metal from group VIII used in the sulphurized form deposited on a support and having a specific composition and comprising bringing the feed into contact with the catalyst at a temperature in the range of 80&#xb0; C. to 220&#xb0; C. at a liquid hourly space velocity in the range of 1 hto 10 hand at a pressure in the range of 0.5 to 5 MPa.

Selective hydrogenation process employing a sulphurized catalyst

The invention relates to a process for the production of gasoline with a low sulfur content that comprises at least the following stages:

Growing community of inventors

Saint Genis Laval, France

Nathalie Marchal