Intevep, S.a.

Nelson P Martinez

Juan A Lujano

Jose R Velasquez

Roberto E Galiasso

Jose Carrazza

Pedro Pereira

Carlos Zerpa

Nieves Alvarez

Carmen M Lopez

Francisco Machado

Alfredo L Morales

Trino J Romero

Angel R Carrasquel

Jose A Guillen

Magdalena M De Agudelo

Jose R Valasquez

A catalyst for use in a process for steam conversion of a heavy hydrocarbon feedstock includes the steps of: providing a heavy hydrocarbon feedstock; providing a catalytically active phase comprising a first metal and a second metal wherein said first metal is a non-noble Group VIII metal and said second metal is an alkali metal; and contacting said feedstock with steam at a pressure of less than or equal to about 300 psig in the presence of said catalytically active phase so as to provide a hydrocarbon product having a reduced boiling point. The catalyst may be supported on a support material or mixed directly with the feedstock and comprises a first metal selected from the group consisting of non-noble Group VIII metals and mixtures thereof and a second metal comprising an alkali metal wherein said catalyst is active to convert said heavy hydrocarbon at a pressure of less than or equal to about 300 psig.

Process and catalyst for upgrading heavy hydrocarbon

A catalyst for production of high octane number gasoline having low aromatic content from a hydrocarbon feedstock containing n-paraffins includes a zeolite composition containing chromium in an amount of between about 0.1% to about 1.0% by weight of the catalyst, said chromium being located at acidic sites of said zeolite composition whereby aromatic forming reactions are inhibited. The catalyst is provided according to a process including sequential impregnation so as to position chromium at the acidic sites as desired.

Zeolite catalyst with chromium for the production of gasolines with low

A zeolitic material with a crystalline structure of MFI type has a ratio of silica to alumina which is lower than 26, and is hydrothermally prepared without organic template reagents or seeding procedures. Crystalline structure is obtained by forming a mixture of a silicon dioxide source, an alkali metal hydroxide, an aluminum source and water, all reactants with the following molar ratios: ##EQU1## where M is an alkali metal, and reacting the mixture at a temperature from 160.degree. to 180.degree. C. for 40-80 hours. The material is characterized by X-ray diffraction, and has good cracking activity and improved selectivity for gasoline octanes.

Method for recharging a spend fluid catalytic cracking process catalyst

Zeolitic catalyst of MFI type, its preparation and use

A method for making a catalyst containing a vanadium passivating agent in the form of anatase crystalline TiO.sub.2 including a method for processing hydrocarbon feeds containing vanadium.

Method of making a conversion catalyst having an anatase vanadium

A catalyst comprises an alumina carrier having a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) to give values of the Group VIB metal Xs/(A1+X)s of between 4 to 15 where X equals the Group VIB metal and a bulk concentration of between 2.0 to 15.0 wt. % of said Group VIB metal, a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) to give values of the Group VIII metal Ys/(A1+Y)s of between 2 to 5 where Y equals the Group VIII metal and a bulk concentration of between 1.0 to 4 wt. % of said Group VIII metal, a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) to give values of phosphorus Ps/(A1+P)s of between 0.1 to 8 and a bulk concentration of between 0.4 to 2 wt. % phosphorus and a surface concentration as measured by X-Ray Photoelectronic Spectroscpy (XPS) to give values of silica SiO.sub.2 /(A1+SiO.sub.2) of between 1 to 10 and a bulk concentration of between 0.1 to 5 wt. % silica and a process for the conversion of heavy hydrocarbon feeds employing said catalyst.

Mild hydrocracking catalyst for the production of middle distillates

Cracking heavy hydrocarbon feedstocks with a catalyst comprising an

A catalyst containing a vanadium passivating agent in the form of anatase crystalline TiO.sub.2.

Vanadium passivating agent for use in a cracking catalyst

A catalyst having a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) gives values of the Group VIB metal Xs/(Al+X)s of between 4 to 15 where X equals the Group VIB metal and a bulk concentration of between 2.0 to 15.0 wt. % of said Group VIB metal, a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) gives values of the Group VIII metal Ys/(Al+Y)s of between 2 to 5 where Y equals the Group VIII metal and a bulk concentration of between 1.0 to 4 wt. % of said Group VIII metal, a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) gives values of phosphorus Ps/(Al+P)s of between 0.1 to 8 and a bulk concentration of between 0.4 to 2 wt. % phosphorus and a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) gives values of silica SiO.sub.2 /(Al+SiO.sub.2) of between 1 to 10 and a bulk concentration of between 0.1 to 5 wt. % silica and method for preparation of same.

Method of preparation of mild hydrocracking catalyst for the production

A catalyst for use in the mild hydrocracking (MHC) of heavy vacuum gas oils to produce middle distillates and a method for the preparation of the catalyst and a process for treating the heavy vacuum gas oils with the catalyst. The catalyst comprises molybdenum, nickel and phosphorus supported on gamma alumina. The catalyst of the invention possesses a P/Mo+Ni ratio between 0.7 and 1.1, which endows it with a high capacity for hydrodesulfurization (HDS), hydrodenitrogenation (HDN) and hydroconversion of the fraction which can be distilled at 370.degree. C.+ to middle distillates, when the catalyst is used under MHC conditions, that is, T=variable, P=750 psig, LHSV=0.70 m.sup.3 /m.sup.3 h and the ratio H.sub.2 /VGO=300 Nm.sup.3 /m.sup.3. The new catalyst can operate for more than 26 months, maintaining a consistent conversion of 20% and achieving the sulfur and nitrogen requirements in the product obtained.

Growing community of inventors

San Antonio de Los Altos, Venezuela

Nelson P Martinez