Institut Francais Du Pe'trole

Societe Francaise Des Produits Pour Catalyse

Institut Francais Du Petrole, Des Carburants Et Lubrifiants Et

Institute Francais Du Petrole

Institut Francaise Du Petrole, Des Carburants Et Lubrifiants Et

Institut Francaise Du Petrole, De Carburants Et Lubrifiants

Bernard A Juguin

Jean Miquel

Jean-Francois Le Page

Jean Cosyns

Germain J Martino

Francis Raatz

Jean-Pierre Franck

Bernard Torck

Michel Hellin

Pierre Dufresne

Yves Chauvin

Christian Marcilly

Christine Travers

Christian R Busson

Paul Mikitenko

Joseph Y Larue

Jean-Paul Boitiaux

Yves Jacquin

Quang Dang Vu

Georges Cohen

Jean-Claude P Collin

Gabriel De Gaudemaris

Jean-Francois LePage

The invention relates to a process for producing an alkylbenzene from benzene and an aliphatic mono-olefin in the presence of a catalyst based on a dealuminized Y zeolite with a molar ratio SiO.sub.2 /Al.sub.2 O.sub.3 ranging from 8 to 70, the product of this reaction being afterwards fractionated into a first fraction containing non converted benzene and a mono-alkylbenzene and a second fraction containing a poly-alkylbenzene, said second fraction reacting then with benzene in the presence of a catalyst based on a dealuminized mordenite with a total atomic ratio Si/Al ranging from 30 to 80. The invention especially applies to the production of ethylbenzene and cumene respectively from ethylene and propene.

Process for producing alkylbenzenes using a catalyst based on a

Phenol production process

The invention relates to a process for producing alkylaromatic hydrocarbons from natural gas containing methane, characterized in that it comprises the following three successive stages:

Process for producing alkylaromatic hydrocarbons from natural gas

Preparation of oligomers of C.sub.2 to C.sub.8 olefins useful in gasoline, yet fuel and diesel fuel is disclosed. The oligomerization is catalyzed by a modified mordenite in the H or NH.sub.4 + to form which has been sequentially treated with steam and an acid.

Method for producing olefin oligomers using a modified mordenite based

The invention relates to a process for producing premium gasoline from olefinic C.sub.4 cuts containing 1- and 2-butenes and isobutene, the process consisting of converting at least 97% of the total isobutene content of the charge and at least the major portion of the 1- and 2-butenes thereof to C.sub.4 hyrocarbons dimers and trimers without producing substantial amounts of kerosene, said process being characterized in that, in a first step, the olefinic C.sub.4 cut is treated in a first polymerization catalytic zone so as to convert at least 80% of the isobutene to isobutene dimers and trimers and to convert at most 45% of the mixture of 1- and 2-butenes to dimers and trimers thereof, in that, subsequently, the effluent from said first catalytic polymerization zone is fractionated so as to recover, on the one hand, from the column bottom, essentially the C.sub.4 olefinic hydrocarbon dimers and trimers and, on the other hand, from the top of the column, a mixture containing the major part of the isobutene and 1- and 2-butenes not converted in said first catalytic polymerization zone, said mixture being, during a second step, at least partly fed to a second catalytic polymerization zone so as to convert (a) substantially the total amount of isobutene to isobutene dimers and trimers in said second zone and (b) at least 50% of the 1- and 2-butenes, supplied to said second zone to n-butenes dimers and trimers.

Process for producing premium gasoline by polymerizing C.sub.4 cuts

Process for the production of a liquid effluent comprising at least 75% of aromatic hydrocarbons from a naphtha feed charge of high sulfur, nitrogen or oxygen content; said process comprises two steps: (a) hydrotreatment of the charge to decrease its sulfur, nitrogen or oxygen content to selected values, and (b) dehydrogenation of the product of step (a) in the presence of a supported catalyst whose neutralization heat by ammonia adsorption is lower than about 40 joules per gram at 300 mm Hg.

Process for upgrading cuts of very high cycloparaffins content

Residual oils from steam-cracking or catalytic cracking, oils from coal liquefaction and oils from bituminous sands and shales are converted to gasoline by a process comprising the fractionation of the feed charge to a naphtha and a middle distillate: the naphtha, admixed with a gasoline cut 'E', is hydrotreated and then dehydrogenated to gasoline; the middle distillate is hydrotreated and fractionated to gasoline and a heavier fraction, the heavier fraction is hydrocracked and fractionated, thus producing a gasoline cut which constitutes the above cut 'E'.

Process for manufacturing gasoline with upgrading of hydrocarbon oils

Process for isomerizing linear ethylenic hydrocarbons to branched ethylenic hydrocarbons having the same number of carbon atoms in the molecule, in the presence of steam and of a catalyst containing alumina, silica and a metal or compound of a metal selected from chromium, palladium, nickel, copper and silver at critical concentrations of silica and of metal, and with a critical proportion of water with respect to the hydrocarbons.

Process for isomerizing olefins

Highly pure 1-butene and premium gasoline are obtained by

Process for the joint production of highly pure 1-butene and premium

Reforming process operated in the presence of a catalyst comprising a carrier, platinum, rhodium or osmium, an additional metal consisting of chromium, tungsten, molybdenum, manganese, rhenium, germanium, tin, gallium, indium, thallium, thorium, cerium, samarium, lanthanum, zinc, cadmium, titanium or zirconium, and halogen.

Catalysts for hydrocarbon conversion

Process for producing very pure olefins of the formula ##STR1## by decomposition of the corresponding ethers of formula ##STR2## wherein R.sub.1 and R.sub.3 are selected from the group of the alkyl, arylalkyl aryl or alkylaryl radicals, R and R.sub.2 being a hydrogen atom or a radical selected from said above mentioned group, in the presence of steam in a molar proportion from 2 to 8 times the ether amount and with the use of a catalyst comprising alumina to which is added 0.01 to 5% by weight of titanium or zirconium or hafnium as metal or as metal compound, said catalyst having a specific surface from 80 to 300 m.sup.2 /g.

Process for producing an olefin by decomposition of the corresponding

A C.sub.4 cut is upgraded according to the following steps:

Process for upgrading olefinic C.sub.4 cuts

A process is provided for selectively polymerizing isobutene in an olefinic C.sub.4 cut comprising isobutene and normal butenes by contacting the cut with a catalyst consisting essentially of silica-alumina; whereby at least 90% of the isobutene and less than 10% of the normal butenes in the cut are converted.

Process for converting C.sub.4 olefinic cracking cuts to alkylate and

Process for upgrading an olefinic C.sub.4 cut issued from a cracking or steam cracking unit, comprising subjecting said cut to isomerization conditions so as to convert at least 80% of its 1-butene content to 2-butenes, subjecting the so-treated C.sub.4 cut to polymerization conditions so as to convert at least 90% of its isobutene content to isobutene dimers and trimers without substantially converting the normal butenes, separating the isobutene dimers and trimers, alkylating the remaining fraction and fractionating the latter to an alkylate, L P G and an isobutane containing fraction.

Process for upgrading C.sub.4 olefinic cuts

Lead free gasoline of high octane number is obtained from C.sub.3 and C.sub.4 olefinic cuts as follows: propylene contained in the C.sub.3 cut is oligomerized, at least 80% of the isobutene and less than 40% of the n-butenes of the C.sub.4 cut are oligomerized to form an oligomerizate distilling in the gasoline range, which is separated from the unreacted C.sub.4 hydrocarbons, the latter are subsequently alkylated to form a gasoline fraction which can be admixed with the oligomerizates of the C.sub.3 and the C.sub.4 cuts to produce the desired high octane gasoline.

Growing community of inventors

Rueil Malmaison, France

Bernard A Juguin