Intevep, S.a.

Other

Felix Abraham Silva

Manuel Chirinos

Hercilio Rivas

Clara E Mata

Carolina Blanco

Gustavo A Nunez

Domingo P Rodriguez

Jose Carrazza

Jose A Salazar

Cebers O Gomez

Euler G Jimenez

Galanda Morfes

Tulio Rafael Colmenares

Gustavo A Núnez

Mariano Eurique Gurfinkel Castillo

Gerson Siachoque

Maria T Terrer

Domingo Rodriguez

Lirio Quintero

Miguel Marquina

Gerardo Alonso Sánchez

Alejandro Izquierdo

Miguel A Paraco

Gustavo A N&uacute;nez

Dolores Pazos

Gustavo Padron

Carlos Conde

Franzo Agustin Marruffo Rodriguez

A process for upgrading a heavy hydrocarbon includes the steps of obtaining a heavy hydrocarbon; contacting the heavy hydrocarbon with a solvent at upgrading conditions so as to produce a first product comprising a mixture of upgraded hydrocarbon and solvent and a second product comprising asphaltene waste, water and solvent; and feeding the first product to a separator to separate the upgraded hydrocarbon from the solvent. A system is also provided.

Process for improving and recuperating waste, heavy and extra heavy hydrocarbons

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 T; heating the stream to provide a heated stream at a temperature Twhich is greater than ambient temperature and less than the gelling temperature T; 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.

Manufacture of stable bimodal emulsions using dynamic mixing

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 T ; providing a stream of water at a temperature T less than the gelling temperature T ; 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.

Preparation of stable emulsion using dynamic or static mixers

A method for forming a stable bimodal emulsion comprises admixing a viscous hydrocarbon with an aqueous buffer solution under controlled conditions so as to obtain a first monomodal emulsion having an average hydrocarbon droplet size of less than 5 microns. The monomodal emulsion is thereafter diluted with water and additional viscous hydrocarbon is admixed with the diluted monomodal emulsion under a second mixing energy sufficient to produce a bimodal emulsion wherein the average small hydrocarbon droplet size is less than or equal to 5 microns and the average large hydrocarbon droplet size is less than or equal to about 30 microns.

Method for the preparation of viscous hydrocarbon in aqueous buffer

The present invention relates to an improved sorbent for use in removing effluents such as sulfur dioxide from combustion gas streams. The sorbent comprises a hydroxide formed from an alkaline-earth based material such as lime and having incorporated therein an iron and organic compound promotion addition to enhance its ability to remove effluents from the gas stream. The sorbent is formed by co-dissolving an iron salt and an organic compound in a hydration solution and thereafter mixing the hydration solution containing the iron salt and the organic compound with an alkaline-earth based material. The sorbent thus produced may be injected into a gas stream in either dry or slurry form to remove the effluents.

Alkaline-earth based sorbent for removing effluent from a gas stream

A process for the preparation of stable hydrocarbon in water emulsions employing heavy crudes and bitumens having high viscosities and the resulting viscosity stable emulsion products.

Process for stabilizing a hydrocarbon in water emulsion and resulting

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San Antonio de los Altos, Venezuela

Felix Abraham Silva