Patents Assigned to Intevep, S.A.
  • Additives for improving thermal conversion of heavy crude oil
    Patent number: 7067053
    Abstract: A process for upgrading a heavy crude oil includes the steps of providing a heavy crude oil; and exposing the heavy crude oil to residue conversion conditions in the presence of a free radical generator and a hydrogen donor, whereby the free radical generator enhances reactions to form distillates, and the hydrogen donor inhibits reactions to form coke.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: June 27, 2006
    Assignee: Intevep, S.A.
    Inventors: Edgar A Cotte, Ivan C. Machin
  • Aluminosilicate compositions, preparation and use
    Patent number: 7041274
    Abstract: A metalloaluminosilicate composition includes an aluminosilicate composition having an aluminosilicate framework and containing at least one metal, wherein a substantial portion of the metal is incorporated into the aluminosilicate framework. A higher concentration of the metal is incorporated into the framework of the catalyst than is present at the surface of the catalyst.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: May 9, 2006
    Assignee: Intevep, S.A.
    Inventors: Gerardo Vitale-Rojas, Andres Miguel Quesada-Perez
  • Method for preparation of asphalt composition
    Patent number: 7037961
    Abstract: A method for preparing an asphalt composition includes the steps of providing asphalt; mixing sulfur with the asphalt at a temperature greater than 200° C. to provide a sulfur-asphalt blend; providing a heavy aromatic oil; and mixing the heavy aromatic oil with the sulfur-asphalt blend to provide the asphalt composition. Polymers can also advantageously be incorporated into the asphalt composition.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 2, 2006
    Assignee: Intevep, S.A.
    Inventors: Hercilio Rivas, Pedro Blanco
  • Measurement of fluid properties in vessel and sensor for same
    Patent number: 7032449
    Abstract: A sensor for measuring properties of a fluid in a vessel, includes a sensor mount adapted to mount within a wall of a vessel; a sensor body extending substantially vertically from the sensor mount; and a plurality of sensors spaced vertically along the sensor body, whereby at least one of level, density, temperature and pressure of fluid in the vessel can be measured.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: April 25, 2006
    Assignee: Intevep, S.A.
    Inventor: Oswaldo A. Rivas P.
  • System and method for detecting and measuring liquid carry over in a gas stream
    Patent number: 7028535
    Abstract: A system for automatically detecting liquid carry over in a gas stream includes a sample line communicated with the gas stream for separating a sample of the gas stream; and an impactometer positioned along the line for being impacted by the sample, and for generating a signal indicative of sample density.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: April 18, 2006
    Assignee: Intevep, S.A.
    Inventors: Pedro Ortega, Gonzalo Chinea
  • Modified kaolin compositions and methods for making same
    Publication number: 20050261122
    Abstract: A method for preparing a modified kaolin clay, includes the steps of providing a kaolin clay material having a starting ratio of silica to alumina; mixing the kaolin clay material with acid so as to form a substantially homogenous paste; calcining the paste so as to provide a calcined acid-treated clay material; mixing the calcined acid-treated clay material in water so as to form a suspension; precipitating aluminum from the suspension so as to produce a reduced aluminum suspension; and obtaining a modified clay material from the reduced aluminum suspension, wherein the modified clay material has a final ratio of silica to alumina which is higher than the starting ratio.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 24, 2005
    Applicant: Intevep, S.A.
    Inventors: Andres Quesada Perez, Gerardo Vitale-Rojas
  • Process for preparing solutions with additives and surfactants
    Patent number: 6919381
    Abstract: A process for preparing a solution of a liquid additive in a liquid base wherein the liquid additive tends to gel when mixed with the liquid base at temperatures less than a gelling temperature TG includes the steps of providing a stream of the liquid base at a temperature TC which is greater than ambient temperature and less than the gelling temperature TG; feeding the stream to a mixer having a mixer inlet so as to impart energy to the stream; and adding the liquid additive to the stream downstream of the inlet, whereby the liquid additive mixes with the liquid base and the energy inhibits gelling of the liquid additive.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: July 19, 2005
    Assignee: Intevep, S.A.
    Inventors: Gustavo A Nú{overscore (n)}ez, Clara E Mata, Carolina Blanco
  • Manufacture of stable bimodal emulsions using dynamic mixing
    Patent number: 6903138
    Abstract: A process for preparing a bimodal emulsion of viscous hydrocarbon in water includes providing a stream of water at ambient temperature; providing a liquid additive that tends to gel when mixed with water at temperatures less than a gelling temperature TG; heating the stream to provide a heated stream at a temperature TC which is greater than ambient temperature and less than the gelling temperature TG; feeding the heated stream to a mixer having a mixer inlet so as to impart energy to the heated stream; adding the liquid additive to the heated stream downstream of the mixer inlet, whereby the liquid additive mixes with the stream and the energy inhibits gelling of the liquid additive to provide a substantially homogeneous solution of additive in water. The solution is then divided and used to make two different droplet sized emulsions which are mixed to form the bimodal emulsion.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: June 7, 2005
    Assignee: Intevep, S.A.
    Inventors: Gustavo A Nú{overscore (n)}ez, Clara E Mata, Carolina Blanco, Manuel Segundo Chirinos, Gerardo Alonso Sánchez, Tulio Rafael Colmenares, Hercilio Jose Rivas, Felix Abraham Silva
  • Catalytic system for hydroconversion of naphtha
    Patent number: 6855247
    Abstract: A hydroconversion catalyst for hydrodesulfurizing feedstock while preserving octane number of the feedstock includes a support having a mixture of zeolite and alumina, the zeolite having an Si/Al ratio of between about 1 and about 20, and an active phase on the support and including a first metal selected from group 6 of the periodic table of elements, a second metal selected from the group consisting of group 8, group 9 and group 10 of the period table of elements and a third element selected from group 15 of the periodic table of elements. A hydroconversion process is also disclosed.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: February 15, 2005
    Assignee: Intevep, S.A.
    Inventors: Jorge Tejada, Nelson P. Martínez, José Antonio Pérez, Leonardo Escalante, José M. Larrauri, José A. Salazar
  • Method for in situ forming of unstable oil in water emulsion, especially as well servicing fluid
    Patent number: 6818599
    Abstract: A method for in situ forming of an unstable oil in water emulsion includes the steps of providing a mixture of an aqueous alkali salt solution and a surfactant, and pumping the mixture down a well containing a crude hydrocarbon having an API gravity of less than or equal to 26 so as to provide an unstable emulsion in the well, the unstable emulsion having the hydrocarbon as a dispersed phase and the solution as a continuous phase and having a ratio by weight of the hydrocarbon to the solution of at least about 50:50.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: November 16, 2004
    Assignee: Intevep, S. A.
    Inventors: Raul Possamai Gonzalez, Jose Gregorio Navarro
  • Biodesulfurization of hydrocarbons
    Patent number: 6808919
    Abstract: A process for treating liquid hydrocarbon, includes the steps of providing a liquid hydrocarbon containing complex sulfur-containing compounds, providing a bioactive material selected from or derived from members of genus Alcaligenes; and exposing the liquid hydrocarbon to the bioactive material under effective conditions such that the bioactive material interacts with the complex sulfur compounds and transforms the organic sulfur-containing compounds into inorganic sulfur compounds.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: October 26, 2004
    Assignee: Intevep, S.A.
    Inventors: Isora Ranson, Carmen M. Rivas
  • Polymer-enhanced foamable drilling fluid
    Patent number: 6800592
    Abstract: A foamable drilling fluid is provided which includes an aqueous solvent; a surfactant; and a polysaccharide preferably derived from a galactomannan gum. The foamed drilling fluid includes a liquid phase consisting of the aqueous solvent, polysaccharide and surfactant, and a gas phase of air, nitrogen, natural gas, CO2 and mixtures thereof. The drilling fluid is stable in the presence of crude oil and salt and environmentally friendly.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: October 5, 2004
    Assignee: Intevep, S.A.
    Inventors: Yenny Virginia Rojas, Alida del Carmen Aponte
  • Catalytic system for hydroconversion of naphtha
    Patent number: 6790803
    Abstract: A hydroconversion catalyst for hydrodesulfurizing feedstock while preserving octane number of the feedstock includes a support having a mixture of zeolite and alumina, the zeolite having an Si/Al ratio of between about 1 and about 20, and an active phase on the support and including a first metal selected from group 6 of the periodic table of elements, a second metal selected from the group consisting of group 8, group 9 and group 10 of the period table of elements and a third element selected from group 15 of the periodic table of elements. A hydroconversion process is also disclosed.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: September 14, 2004
    Assignee: Intevep, S.A.
    Inventors: Jorge Tejada, Nelson P. Martínez, José Antonio Pérez, Leonardo Escalante, José M. Larrauri, José A. Salazar
  • Method for removing H2S and CO2 from above ground hydrocarbon streams
    Patent number: 6740141
    Abstract: A method for removing at least one contaminant selected from the group consisting of H2S and CO2 from contaminating streams, including the steps of providing an above ground stream comprising hydrocarbon containing the at least one contaminant, and positioning metal-containing nanoparticles having a particle size of less than or equal to about 100 nm in the stream, the metal-containing nanoparticles being selected from the group consisting of metal oxides, metal hydroxides and combinations thereof, whereby the nanoparticles adsorb the contaminants from the stream.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: May 25, 2004
    Assignees: Intevep, S.A., NanoScale Materials, Inc.
    Inventors: Douglas Espin, Aaron Ranson, Mariela Araujo, Kenneth Klabunde, Shawn Decker, Slawomir Winecki
  • Process for catalytic cracking of a hydrocarbon feed with a MFI aluminisilcate composition
    Patent number: 6726834
    Abstract: A process for catalytic cracking of a hydrocarbon feed, includes the steps of providing an initial hydrocarbon fraction; providing a catalyst comprising an aluminosilicate composition having an aluminosilicate composition having an aluminosilicate framework and containing at least one metal other than aluminum incorporated into the aluminosilicate framework; and exposing the hydrocarbon to the catalyst under catalytic cracking conditions so as to provide an upgraded hydrocarbon product.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: April 27, 2004
    Assignee: Intevep, S.A.
    Inventors: Andrés M. Quesada, Gerardo Vitale-Rojas, José Velásquez, María Nieves Alvarez
  • Process scheme for sequentially treating diesel and vacuum gas oil
    Patent number: 6676828
    Abstract: A process for treating a vacuum gas oil and Diesel feed includes the steps of providing reaction feed containing vacuum gas oil, Diesel and sulfur-containing compounds; providing a stripping gas; providing a washing feed; and mixing the reaction feed, the stripping gas and the washing feed in a stripping and washing zone so as to obtain a gas phase containing the sulfur-containing compounds and a liquid phase substantially free of the sulfur-containing compounds. The washing feed comprises at least one of Diesel, light vacuum gas oil and mixtures thereof produced in the process or added from external source.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: January 13, 2004
    Assignee: Intevep, S.A.
    Inventors: Roberto Galiasso, Eusebio Palmisano, Gerardo Arreaza, Samuel Quenza, Sandra Ramnarine
  • Preparation of stable emulsion using dynamic or static mixers
    Patent number: 6677387
    Abstract: A process for preparing a hydrocarbon in water emulsion, comprising the steps of providing a liquid additive that tends to gel when mixed with water at temperatures less than a gelling temperature TG; providing a stream of water at a temperature TC less than the gelling temperature TG; feeding said stream to a mixer having a mixer inlet so as to impart energy to the stream; adding the liquid additive to the stream downstream of the mixer inlet, whereby the liquid additive mixes with the stream and the energy inhibits gelling of the liquid additive so as to provide a substantially homogeneous solution of the liquid additive in the water; and mixing the solution with a hydrocarbon in a mixer so as to form a hydrocarbon-in-water emulsion. In further accordance with the invention, different emulsions can be formed and combined so as to provide a combined emulsion having desired properties.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: January 13, 2004
    Assignee: Intevep, S.A.
    Inventors: Mariano E Gurfinkel Castillo, Franzo Agustin Marruffo Rodriguez, Manuel Segundo Chirinos, Felix Abraham Silva, Gustavo Padron, Gustavo A Nú{overscore (n)}ez, Clara E. Mata, Carolina Blanco
  • Hydroprocessing process
    Patent number: 6656348
    Abstract: A process for hydroprocessing a hydrocarbon feed with a flow rate of hydrogen-containing gas and a volume of catalyst, includes providing a hydrocarbon feed; feeding the hydrocarbon feed and a first portion of the hydrogen-containing gas flow rate cocurrently to a first hydroprocessing zone containing a first portion of the catalyst so as to provide a first hydrocarbon product; providing an additional hydroprocessing zone containing a remainder of the catalyst; feeding the first hydrocarbon product cocurrently with a remainder of the hydrogen-containing gas flow rate to the additional hydroprocessing zone so as to provide a final hydrocarbon product, wherein the first portion of the hydrogen-containing gas flow rate is between about 30 and about 80% vol. of the hydrogen-containing gas flow rate, and the first portion of the catalyst is between about 30 and about 70% wt. of the volume of catalyst.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: December 2, 2003
    Assignee: Intevep, S.A.
    Inventors: Carlos Gustavo Dassori, Nancy Fernandez, Rosa Arteca, Carlos Castillo
  • Hydroprocessing process
    Patent number: 6649042
    Abstract: A process for hydroprocessing a hydrocarbon feedstock, includes the steps of providing a hydrocarbon feed having an initial characteristic; providing a first hydrogen-containing gas; feeding the hydrocarbon feed and the first hydrogen-containing gas cocurrently to a first hydroprocessing zone so as to provide a first hydrocarbon product; providing a plurality of additional hydroprocessing zones including a final zone and an upstream zone; feeding the first hydrocarbon product cocurrently with a recycled gas to the upstream zone so as to provide an intermediate hydrocarbon product; and feeding the intermediate hydrocarbon product cocurrently with a second hydrogen-containing gas to the final zone so as to provide a final hydrocarbon product having a final characteristic which is improved as compared to the initial characteristic.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: November 18, 2003
    Assignee: Intevep, S.A.
    Inventors: Carlos Gustavo Dassori, Nancy Fernandez, Rosa Arteca, Carlos Castillo
  • System and method for controlling an industrial process utilizing process trajectories
    Patent number: 6636842
    Abstract: A method for monitoring an industrial process, including the steps of: providing a knowledge base comprising a two-dimensional representation of operational conditions for the process; obtaining process real time data from the industrial process for a plurality of process variables; selecting relevant features from the real time data; obtaining an operational condition classification from the relevant features; transforming the operational condition classification into a point; and displaying the point on said knowledge base.
    Type: Grant
    Filed: July 15, 2000
    Date of Patent: October 21, 2003
    Assignee: Intevep, S.A.
    Inventors: Alexander Zambrano, Manuel Vazquez, Hugo E. Aponte, Alexis A Suarez, Jose Fernandes