公开(公告)号：US11962044B2

公开(公告)日：2024-04-16

申请号：US17107100

申请日：2020-11-30

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Eliceo Sosa Hernandez ,  Marco Antonio Dominguez Aguilar ,  Hongbo Liu ,  Jorge Luis Alamilla Lopez ,  Jorge Flores Castillo ,  Marco Antonio Hernandez Rojo ,  Ivan Velazquez Ovando ,  Cesar Mendez Romero ,  Luis Manuel Quej Ake

IPC: H01M50/571 ,  G01N17/02 ,  H01M50/30 ,  H01M50/578

CPC classification number: H01M50/578 ,  G01N17/02 ,  H01M50/30 ,  H01M50/571

Abstract: The present invention offers some general specifications for the design, assembly, and adaptation of a rotating cylinder electrochemical cell into an autoclave, of a high temperature and pressure system for corrosion studies that simulate operating conditions in pipelines, as well as the operation and safety of an autoclave to evaluate the electrochemical process of metal surfaces exposed to aggressive aqueous solutions. The electrochemical cell consists of an array of three electrodes that include a rotating cylinder electrode designed to operate hermetically, a reference electrode and an auxiliary electrode. The rotating cylinder electrode is considered to be the working electrode, where the oxidation and electrochemical reduction processes are studied. However, the use of the method described in this work can be extended to other testing environments and materials by taking into account the physical and chemical properties of the fluids and materials to be used in order to avoid any risk for the operator.

公开(公告)号：US10676829B2

公开(公告)日：2020-06-09

申请号：US15981947

申请日：2018-05-17

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Jesus Marin Cruz ,  Araceli Vega Paz ,  Luisa Elena Montiel Sanchez ,  Salvador Castillo Cervantes ,  Rafael Martinez Palou ,  Arquimedes Estrada Martinez ,  Luis Manuel Quej Ake ,  Jose Luis Rodolfo Benitez Aguilar ,  Veronica Sanchez Garcia

IPC: C23F11/14 ,  C07D233/64 ,  C07D249/18 ,  C07D233/58 ,  C09K8/54 ,  F17D1/08 ,  F17D3/12

Abstract: 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.

公开(公告)号：US10011908B2

公开(公告)日：2018-07-03

申请号：US14526152

申请日：2014-10-28

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Jesus Marin Cruz ,  Araceli Vega Paz ,  Luisa Elena Montiel Sanchez ,  Salvador Castillo Cervantes ,  Rafael Martinez Palou ,  Arquimedes Estrada Martinez ,  Luis Manuel Quej Ake ,  Jose Luis Rodolfo Benitez Aguilar ,  Veronica Sanchez Garcia

IPC: C23F11/14 ,  C07D233/64 ,  C07D249/18 ,  C07D233/58 ,  C09K8/54

CPC classification number: C23F11/149 ,  C07D233/58 ,  C07D233/64 ,  C07D249/18 ,  C09K8/54 ,  C23F11/141 ,  F17D1/08 ,  F17D3/12

Abstract: 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.