Patents Assigned to Intevep, S.A.
  • Patent number: 6193875
    Abstract: A method for making an oil soluble coking process additive, includes the steps of: providing mixture of a metal salt in water wherein the metal salt contains a metal selected from the group consisting of alkali metals, alkaline earth metals and mixtures thereof; providing a heavy hydrocarbon; forming an emulsion of the mixture and the heavy hydrocarbon; heating the emulsion so as to react the metal salt with components of the heavy hydrocarbon so as to provide a treated hydrocarbon containing oil soluble organometallic compound, wherein the organometallic compound includes the metal and is stable at a temperature of at least about 300° C. The oil soluble additive and a process using same are also disclosed.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: February 27, 2001
    Assignee: Intevep, S.A.
    Inventors: Pedro Pereira, Jose Guitian, Jose Cordova, Ramon Salazar, Monsaris Pimentel, Alice Dupatrocinio
  • Patent number: 6182756
    Abstract: A method for optimizing production from a gas lift well includes the steps of: obtaining a statistical model of production behavior of a gas lift well, the production behavior including known patterns of at least one production characteristic and corresponding operating parameters; operating the gas lift well at initial operating parameters; obtaining a real time value of the production characteristic from the gas lift well at the initial operating parameters; comparing the real time value of the production characteristic to the model to determine whether a known pattern is detected; and if a known pattern is detected, adjusting the operating parameters to the corresponding operating parameters. An apparatus is also provided.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: February 6, 2001
    Assignee: Intevep, S.A.
    Inventors: Gonzalo Garcia, Aaron Ranson
  • Patent number: 6171479
    Abstract: A process comprises providing a catalyst comprising a support, a microwave absorption material, and a catalytically active phase; heating the catalyst with a source of microwave energy which is absorbed by said microwave absorption material to increase the temperature of the catalyst to a desired temperature; and contacting said heated catalyst with a hydrocarbon feedstock for upgrading same.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: January 9, 2001
    Assignee: Intevep, S.A.
    Inventors: Cesar Ovalles, Alfredo Morales, Luis A. Rivas, Nora Urbano
  • Patent number: 6169054
    Abstract: A method for making an oil soluble coking process additive, includes the steps of: providing mixture of a metal salt in water wherein the metal salt contains a metal selected from the group consisting of alkali metals, alkaline earth metals and mixtures thereof; providing a heavy hydrocarbon; forming an emulsion of the mixture and the heavy hydrocarbon; heating the emulsion so as to react the metal salt with components of the heavy hydrocarbon so as to provide a treated hydrocarbon containing oil soluble organometallic compound, wherein the organometallic compound includes the metal and is stable at a temperature of at least about 300° C. The oil soluble additive and a process using same are also disclosed.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: January 2, 2001
    Assignee: Intevep, S.A.
    Inventors: Pedro Pereira, Jose Guitian, Jose Cordova, Ramon Salazar, Monsaris Pimentel, Alice Dupatrocinio
  • Patent number: 6152701
    Abstract: The present invention relates to a method for designing handling systems such as pipeline systems for fluid products such as emulsions and dispersions which deteriorate at elevated temperature and pressure. The method of the present invention comprises the steps of providing a pipeline having a fluid inlet point and a fluid discharge point and at least one pump for transporting the fluid from the fluid inlet point to the fluid discharge point, selecting one of a maximum pressure drop to be encountered by the fluid as it travels from the fluid inlet point to the fluid discharge point and a maximum volume of fluid to be handled by the system, and operating the system in accordance with the following equation: ##EQU1## where B is the maximum allowable shear rate from a first fluid inlet point to a second fluid discharge point, D is the diameter of the pipeline, and Q is the volume of fluid to be transported between the fluid inlet point and the fluid discharge point.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: November 28, 2000
    Assignee: Intevep, S.A.
    Inventors: Mariano Eurique Gurfinkel Castillo, Gustavo A Nunez, Geoff McGrath
  • Patent number: 6135749
    Abstract: An apparatus for forming an oriented plastic pipe from a plastic tubular material includes a first heated liquid bath for heating the plastic material to the glass transition temperature and a cooled liquid bath downstream of the heated liquid bath for cooling the plastic pipe after orientation of same.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: October 24, 2000
    Assignee: Intevep, S.A.
    Inventors: Sarkis J. Kakadjian, Carlos A. Villamizar, Nelson F. Torres
  • Patent number: 6106802
    Abstract: A composition of matter is provided including an inorganic porous material having wall portions defining mesopore-sized channels having a mean diameter of between about 15 .ANG. and about 100 .ANG. and a narrow diameter distribution of less than or equal to about 30 .ANG., the material having a void volume from the mesopore-sized channels of at least about 0.1 cc/g and a surface area of at least about 500 m.sup.2 /g and having a number of hydroxyl groups of at least about 1.5 mmol of hydroxyl groups per gram of material, and exhibiting thermal and hydrothermal stability at temperatures up to about 500.degree. C. Catalytic materials incorporating aluminum and other active metals, as well as a process for preparing the composition, are also disclosed.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: August 22, 2000
    Assignee: Intevep, S.A.
    Inventors: Juan Lujano, Jose Carrazza, Norma Valencia de Zapata
  • Patent number: 6069178
    Abstract: A process for preparing a hydrocarbon in water emulsion includes the steps of providing a hydrocarbon phase containing inactive natural surfactant; mixing a solid carbon additive with the hydrocarbon phase, the solid additive being selected from the group consisting of coal, coke and mixtures thereof so as to provide a hydrocarbon suspension including the solid carbon additive; and forming an emulsion from the hydrocarbon suspension and an aqueous phase in the presence of a surfactant activating additive so as to activate the inactive natural surfactant and form a hydrocarbon in water emulsion having the solid carbon additive suspended in the hydrocarbon phase. A hydrocarbon in water emulsion is also provided including a hydrocarbon phase, a water phase, a surfactant, and a solid carbon additive suspended in the hydrocarbon phase, the solid carbon additive being selected from the group consisting of coal, coke and mixtures thereof.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: May 30, 2000
    Assignee: Intevep, S.A.
    Inventors: Ignacio A. Layrisse, Nilia C Romero, Gustavo A. Nunez
  • Patent number: 6058765
    Abstract: An apparatus for monitoring hydrogen permeation from a metallic material includes structure for positioning an electrolyte in hydrogen communication with the material; a porous electrode contacting the electrolyte; and a current collector connected to the porous electrode and the material, whereby current between the material and the current collector is indicative of hydrogen permeation from the material. A method is also disclosed.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: May 9, 2000
    Assignee: Intevep, S.A.
    Inventors: Omar Yepez, Jose R. Vera
  • Patent number: 6049012
    Abstract: A catalyst for production of alkyl tert alkyl ether from sulfur contaminated feedstock includes an ion exchange resin; a palladium first metal phase supported on the resin; and a sulfur inhibiting second metal phase supported on the resin for inhibiting sulfur deactivation of the first metal phase, wherein the first metal phase is present at an atomic ratio to the second metal phase of between about 1:20 to about 1:0.1. A process for producing alkyl tert alkyl ethers includes the steps of providing a liquid olefinic hydrocarbon feedstock containing sulfur and having a total sulfur content of up to about 300 ppm; providing a catalyst as described above; mixing the feedstock with alcohol and hydrogen to obtain a reaction feedstock; and contacting the reaction feedstock with the catalyst under etherification conditions so as to produce alkyl tert alkyl ether.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: April 11, 2000
    Assignee: Intevep, S.A.
    Inventors: Magdalena Ramirez de Agudelo, Trino J. Romero, Emilia Mujica
  • Patent number: 6043182
    Abstract: A method for preparing an oil soluble catalytic precursor includes the steps of: providing a mixture of a catalytic metal salt in water, wherein the catalytic metal salt contains a catalytic metal selected from the group consisting of alkali metals, alkaline earth metals, transition metals, and mixtures thereof; providing a heavy hydrocarbon phase; forming a water in oil emulsion of the mixture in the heavy hydrocarbon phase; and heating the emulsion at a temperature sufficient to dehydrate the emulsion so as to provide a hydrocarbon containing an oil soluble compound containing the catalytic metal.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: March 28, 2000
    Assignee: Intevep, S.A.
    Inventors: Jose Cordova, Pedro Pereira, Jose Guitian, Antida Andriollo, Alfredo Cirilo, Francisco Granadillo
  • Patent number: 6039880
    Abstract: A method for dehydrating a waste hydrocarbon sludge, includes the steps of: (a) providing a waste hydrocarbon sludge in the form of an emulsion of water and oil having a water content greater than or equal to about 10% vol; (b) providing a solution of a clarifying agent in formation water; (c) mixing the waste hydrocarbon sludge with the solution so as to provide a sludge-water mixture having a ratio of water to hydrocarbon of at least about 1:1; (d) adding a demulsifier to the sludge-water mixture to provide a sludge-water-demulsifier mixture; (e) heating the sludge-water-demulsifier mixture to a sufficient temperature and holding for a time sufficient to provide a hydrocarbon phase having a water content of less than or equal to about 1% vol.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: March 21, 2000
    Assignee: Intevep, S.A.
    Inventor: Carmen Morataya
  • Patent number: 6030522
    Abstract: A process for upgrading a heavy hydrocarbon feed includes the steps of: providing a hydrocarbon feedstock including a fraction having a boiling point greater than or equal to about 320.degree. C.; mixing the feedstock with steam so as to provide a reaction feedstock; providing a catalyst including a first metal selected from the group consisting of Group VIII non-noble metals and a second metal selected from the group consisting of alkali metals, the first and second metals being supported on a support selected from the group consisting of kaolin, alumina, silica, carbon, petroleum cokes and mixtures thereof; and contacting the reaction feedstock with the catalyst at steam conversion conditions so as to provide a reaction product including an upgraded hydrocarbon fraction.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: February 29, 2000
    Assignee: Intevep, S.A.
    Inventors: Pedro Pereira, Trino Romero, Jose Velasquez, Alfonso Tusa, Iraima Rojas, William Camejo, Marcos Rosa-Brussin
  • Patent number: 6019887
    Abstract: An adsorption/desorption process for selectively removing nitriles from a hydrocarbon feedstock includes the steps of: (a) providing a hydrocarbon feedstock having a nitrile content of less than or equal to about 400 ppm; (b) providing an adsorbent for selective removal of nitrile from a hydrocarbon feedstock comprising a substantially homogeneous mixture of a cationic nonacidic zeolite and an inorganic oxide matrix, the zeolite having an accessibility index of between about 0.1 to about 0.4; (c) contacting the feedstock and the adsorbent at nitrile adsorption conditions whereby at least about 80% of the nitrile content is adsorbed by the adsorbent during contact with at least about 200 volumes of the feedstock per volume of the adsorbent so as to provide a used adsorbent having nitrile molecules adsorbed thereon; and (d) contacting the used adsorbent with a desorbent at desorption conditions so as to remove the nitrile molecules and provide a renewed adsorbent.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: February 1, 2000
    Assignee: Intevep, S.A.
    Inventors: Maria M. Ramirez de Agudelo, Julia T. Guerra, Douglaines L Marcano, Zaida Hernandez
  • Patent number: 6017845
    Abstract: A process comprises providing a catalyst comprising a support, a microwave absorption material, and a catalytically active phase; heating the catalyst with a source of microwave energy which is absorbed by said microwave absorption material to increase the temperature of the catalyst to a desired temperature; and contacting said heated catalyst with a hydrocarbon feedstock for upgrading same.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: January 25, 2000
    Assignee: Intevep, S.A.
    Inventors: Cesar Ovalles, Alfredo Morales, Luis A. Rivas, Nora Urbano
  • Patent number: 5987969
    Abstract: An apparatus for characterizing dynamic stability of an emulsion includes a test vessel, a gap within the test vessel defined between a stationary surface and a moving surface; and an inlet for feeding an emulsion through the gap within the test vessel, whereby dynamic stability of the emulsion can be characterized based upon cycles of flow through the test vessel. Methods for characterizing dynamic stability are also disclosed.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: November 23, 1999
    Assignee: Intevep, S.A.
    Inventors: Daniel D. Joseph, Geoffrey McGrath, Gustavo Nunez, Pedro J Ortega
  • Patent number: 5981421
    Abstract: A catalyst system for selective hydrogenation of sulfur-containing and nitrogen-containing compounds of a heteroaromatic organic phase includes a mixture of a noble metal selected from Group VIII of the Periodic Table of Elements and a water-soluble ligand. A process for preparing the catalyst system and hydrogenation process using the catalyst system are also provided.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: November 9, 1999
    Assignee: Intevep, S.A.
    Inventors: Daniel E. Paez, Antida Andriollo, Roberto A. Sanchez-Delgado, Norma del V. Valencia, Roberto E. Galiasso, Francisco A. Lopez
  • Patent number: 5976200
    Abstract: A combustible fuel for diesel engines and a process for forming same in the form of a water in hydrocarbon emulsion wherein the mean water drop diameter is.ltoreq.4 .mu.m with a maximum diameter of.ltoreq.10 .mu.m.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: November 2, 1999
    Assignee: Intevep, S.A.
    Inventors: Hercilio Rivas, Gustavo A. Nunez, Tulio Colmenares, Manuel Chirinos
  • Patent number: 5967694
    Abstract: In accordance with the present invention, a roadway for supporting vehicular traffic and which can be used over a wide variety of terrains comprises a network of interconnected modular components for supporting a road bed over which vehicles can travel and a plurality of prefabricated panels, overlaying the network of interconnected modular components, which form a road bed. The network of interconnected modular components includes a first layer of interconnected, prefabricated concrete cylinders placed over the terrain to be traversed. The concrete cylinders are formed into a number of rows whose longitudinal axes are parallel to the direction of the road. The network further includes a second layer of interconnected, prefabricated concrete cylinders placed over the first layer and joined to the first layer by a number of intermediate support devices. The concrete cylinders in the second layer have their longitudinal axes extending in a direction substantially perpendicular to the direction of the road.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: October 19, 1999
    Assignee: Intevep, S.A.
    Inventors: Nelson Covarrubias, Pierre Miura, Jose Luis Mayor, Juan Federico Urich
  • Patent number: 5964906
    Abstract: A process for preparing a hydrocarbon in water emulsion includes the steps of: providing a hydrocarbon phase containing a contaminant selected from the group consisting of vanadium, sulfur, and mixtures thereof; mixing a solid additive with the hydrocarbon phase, the solid additive being selected from the group consisting of calcium compounds, magnesium compounds and mixtures thereof so as to provide a hydrocarbon suspension including the solid additive; and forming an emulsion from the hydrocarbon suspension and an aqueous phase including a surfactant so as to form a combustible hydrocarbon in water emulsion having the solid additive suspended in the hydrocarbon phase.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: October 12, 1999
    Assignee: Intevep, S.A.
    Inventors: Ignacio A. Layrisse, Nilia C Romero, Gustavo A. Nunez