Eni S.p.a.

Eniricerche S.p.a.

Enitecnologie S.p.a.

Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Agip Petroli S.p.a.

Other

Institute Francais Du Petrole

Vincenzo Calemma

Cristina Flego

Riccardo Rausa

Carlo Perego

Christophe Bouchy

Hugues Dulot

Aline Grezaud

Roberto Giardino

Giuseppe Bellussi

Patrick Euzen

Angela Carati

Christophe Gueret

Alberto Renato De Angelis

Marco Massimo Ferrari

Luciano Cosimo Carluccio

Roberto Menicagli

Silvia Guanziroli

Silvia Pavoni

Wallace Parker

Roberto Millini

Vincenzo Piccolo

Stefano Peratello

Giacomo Fernando Rispoli

Giuseppe Belmonte

Jean-Philippe Heraud

Giulio Assanelli

Franco Baldiraghi

Jean Philippe Heraud

Maria Federica Gagliardi

Ugo Cornaro

Giovanni Faraci

Hugues France-Dulot

Elena Maria Rebesco

A process for the production of middle distillates from a paraffinic feedstock produced by Fischer-Tropsch synthesis comprising a limited content of molecules containing at least one oxygen atom. In the process, the feedstock is subjected to at least one hydrocracking/hydroisomerization stage in the presence of a hydrogen stream also containing a limited atomic oxygen content.

Process for the production of middle distillates in which the feedstock originating from the fischer-tropsch process and the hydrogen stream contain a limited oxygen content

A method for producing middle distillates from a feedstock produced by Fischer-Tropsch synthesis and containing oxygenated compounds, including:

Optimized method for producing middle distillates from a feedstock originating from the Fischer-Tropsch process containing a limited quantity of oxygenated compounds

Production of middle distillates from a feedstock produced by Fischer-Tropsch synthesis and containing oxygenated compounds: a) catalytic hydrotreating; b) hydroisomerization/hydrocracking at least a part of liquid and gaseous effluent originating from a); c) gas/liquid separation of the stream from b) into a gaseous fraction comprising predominantly hydrogen, a hydroisomerized/hydrocracked organic liquid fraction and an aqueous fraction; d) fractionation of the organic liquid fraction in c) to obtain at least one fraction of middle distillates; and e) catalytic methanation of CO and COon at least a part of said gaseous fraction in c) before hydrotreating a), and/or on at least a part of the liquid and gaseous effluent originating from a) in which the hydrogen in a) is obtained at least partly from the gaseous fraction separated in c).

Production of middle distillates from an effluent originating from fischer-tropsch synthesis comprising a step of reducing the content of oxygenated compounds

A process is described for improving the quality as a fuel of hydrotreated hydrocarbon blends by reaction with hydrogen in the presence of a bifunctional catalytic system comprising one or more metals selected from Pt, Pd, Ir, Ru, Rh and Re, and a silico-aluminate of an acidic nature, selected from a micro-mesoporous silico-alumina and a zeolite belonging to the MTW family. The process of the invention produces an increase in the cetane index and a decrease in the density and T95.

Process for improving quality as a fuel of hydrotreated hydrocarbon blends

The process of producing middle distillates from effluents obtained by a Fischer-Tropsch synthesis, comprises a step for hydro-treatment and purification and/or decontamination by passage over a multi-functional guard bed prior to a step of hydrocracking/hydroisomerization. The guard bed reduces the amount of unsaturated compounds, oxygen-containing compounds, particulate mineral solids, and organometallic compounds.

Process for producing middle distillates by hydroisomerizing and hydrocracking feeds from the Fischer-Tropsch process using a multifunctional guard bed

The invention concerns a process for producing middle distillates from a paraffinic feed produced by Fischer-Tropsch synthesis, using a hydrocracking/hydroisomerization catalyst which comprises:

Process for producing middle distillates by hydroisomerizing and hydrocracking feeds from the Fischer-Tropsch process using a doped catalyst based on mesoporous alumina-silica with a controlled macropore content

Amorphous porous solid of an acidic nature, with a controlled pore size, essentially consisting of a mixed oxide of silicon, aluminum and phosphorous, having a surface area of at least 200 m/g, which can be used as a catalyst or active carrier of a catalyst for various industrial processes, such as, for example, alkylation, isomerization, hydro-dehydrogenation processes, with an improved activity and selectivity with respect to the traditional amorphous silica-alumina gels.

Catalytically active amorphous porous solid and process for its preparation

Process for the contemporaneous production of fuels and lubricating bases from synthetic paraffinic mixtures, which includes a hydrocracking step in the presence of a solid bi-functional catalyst comprising: (A) a support of an acidic nature consisting of a catalytically active porous solid, including silicon, aluminum, phosphorus and oxygen bonded to one another in such a way as to form a mixed amorphous solid characterized by an Si/Al atomic ratio of between 15 and 250, a P/Al ratio of at least 0.1, but lower than 5, a total pore volume ranging from 0.5 to 2.0 ml/g, with an average pore diameter ranging from 3 nm. to 40 nm, and a specific surface area ranging from 200 to 1000 M2/g; (B) at least one metal with a hydro-dehydrogenating activity selected from groups 6 to 10 of the periodic table of elements, dispersed on said support (A) in an amount of between 0.05 and 5% by weight with respect to the total weight of the catalyst.

Process for the preparation of middle distillates and lube bases starting from synthetic hydrocarbon feedstocks

A process with an increased efficiency for the preparation of middle distillates with excellent properties at low temperatures and substantially without oxygenated organic compounds, starting from a synthetic mixture of hydrocarbons at least partly waxy, containing a fraction of alcohols, comprising the separation of the mixture into a low-boiling fraction and a high-boiling fraction; the subsequent hydrogenation of the low-boiling fraction under such conditions as to avoid any substantial variation in its average molecular weight; the joining of at least a part of the hydrogenated fraction with said high-boiling fraction, and the subsequent catalytic hydrocracking treatment of the mixture of hydrocarbons thug formed, to obtain a substantial conversion of the waxy part into middle distillate.

Process for the production of paraffinic middle distillates

Hydrocarbons are prepared, which are liquid at the reaction temperature, by feeding synthesis gas into three-phase turbulent reactors in which the solid phase, consisting of the catalyst in the form of particles, is kept in suspension in the liquid phase by the rising synthesis gas. The reaction product is extracted in continuous, together with the catalyst dispersed therein, and sent to a separation section which comprises a primary filtration unit and a micro/ultra-filtration unit.

Process for the production in continuous of hydrocarbons from synthesis gas

Process for the preparation of middle distillates starting from linear paraffins

Process for the hydroisomerization of n-paraffins in the presence of a difunctional catalyst which comprises:

Difunctional catalyst effective in wax hydroisomerization and process

An improved process for preparing a difunctional catalyst active in the hydroisomerization of long-chain normal paraffins is disclosed, which is constituted by an amorphous silica-alumina gel and one or more metals belonging to Group VIIIA,

Process for preparing an effective catalyst for n-paraffins

An improved process for preparing a difunctional catalyst active, in the hydroisomerization of long-chain normal paraffins is disclosed, which is constituted by an amorphous silica-alumina gel and one or more metals belonging to Group VIIIIA.

Process for preparing an effective catalyst for n-parafins

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Milan, Italy

Vincenzo Calemma