Instituto Mexicano Del Petroleo

Rafael Martinez Palou

Natalya Victorovna Likhanova

Diego Javier Guzman Lucero

Eugenio Alejandro Flores Oropeza

Arquimedes Estrada Martinez

Salvador Castillo Cervantes

Jesus Marin Cruz

Jose Luis Rodolfo Benitez Aguilar

Luis Manuel Quej Ake

Jorge Froylan Palomeque Santiago

Araceli Vega Paz

Veronica Sanchez Garcia

Luisa Elena Montiel Sanchez

Jorge Arturo Aburto Anell

Alba Adriana Vallejo Cardona

César Bernal Huicochea

Romeo Jesus Reyes Avila

Ricardo Ceron Camacho

Rafael Rodriguez Dominguez

Benjamin Chavez Gomez

Juan De Clavel Lopez

Mario Ramirez De Santiago

Alba Adriana Vallejo Cordona

Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family.

Corrosion inhibition composition for pipelines, process of elaboration and synthesis

Ionic liquids of the general formula CAwhere Crepresents an organic cation, specifically, but not limited to the imidazolium, pyridinium, isoquinolinium, ammonium types, which have aliphatic and aromatic substituents, while Arepresents a carboxylate, aromatic and aliphatic anion. The ionic liquids are synthesized under conventional heating or microwave irradiation This invention is also related to the application of ionic liquids to remove sulfur compounds of naphthas through a liquid-liquid extraction and the recovery and reuse of ionic liquids by the application of heat, reduced pressure and washing with solvents.

Halogen-free ionic liquids in naphtha desulfurization and their recovery

The present invention relates to a process for breaking of preferred, but not exclusive, oil-in-water emulsions (O/W) and water separation from crude oil emulsions using surfactants as demulsifying agents derived from natural or synthetic amino acids, which are water soluble. The surfactants are of the methanesulfonate series of glycine ester derivatives with hydrocarbon chains, preferably between Cand C, at a concentration between 450 and 900 ppm, at a temperature range of 30 to 60&#xb0; C. The removal of water from the crude oil by using natural or synthetic amino acid-based demulsifiers is highly efficient (about 80%) and complemented with the action of an electric field typically used in electrostatic separators in crude oil terminals ad oil refineries, increasing the efficiency of water separation substantially, and enabling the production of dehydrated crude oil for further processing.

Process for demulsification of crude oil in water emulsions by means of natural or synthetic amino acid-based demulsifiers

This invention is related to the use of ionic liquids of general formula CA, where Crepresents a cation of organic or inorganic type, specifically of the type imidazolium, pyridinium or ammonium salts, while the anion Aare derivatives which are halides, salts of iron (III), aluminum salts (III), acetate and benzoate, though not exclusively. These agents act as ionic liquid extractants of nitrogenous compounds present in hydrocarbon streams through a process of liquid-liquid extraction thereby can be reduced by more than 60% the content of these contaminants in hydrocarbon streams.

Denitrogenation of hydrocarbons by liquid-liquid extraction using ionic liquids

The present invention relates to an improved desulfurization process using an ionic liquid compound of general formula CA, where Crepresents an organic cation such as alkyl-pyridinium, di-alkyl imidazolium and tri-alkyl imidazolium; and Ais an anion of halides of iron (III), such as, for example, FeCl. The desulfurization process is also improved when producing the ionic liquid compound by heating the reactants using microwave energy. The ionic liquids can be used to desulfurize hydrocarbon mixtures by a liquid-liquid extraction.

Desulfurization of hydrocarbons by ionic liquids and preparation of ionic liquids

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Mexico City, Mexico

Rafael Martinez Palou