Patents by Inventor Veronica K. Braden

Veronica K. Braden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Amine blend neutralizers for refinery process corrosion
    Patent number: 5965785
    Abstract: This invention relates to inhibiting corrosion in systems of condensing hydrocarbons which contain water and chlorides, and, more particularly, in the overhead of crude oil atmospheric pipestills, with blends of amines. Preferred blends are 2-amino-1-methoxypropane, sec-butylamine, n-butylamine, dipropylamine and monoamylamine; 2-amino-1-methoxypropane, sec-butylamine, monoamylamine, n-butylamine and isobutylamine; and sec-butylamine, 2-amino-1-methoxypropane and 3-amino-1-methoxypropane.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: October 12, 1999
    Assignee: Nalco/Exxon Energy Chemicals, L.P.
    Inventors: Veronica K. Braden, Paul Fearnside, Christopher J. Murphy
  • Use of 2-amino-1-methoxypropane as a neutralizing amine in refinery processes
    Patent number: 5641396
    Abstract: 2-amino-1-methoxypropane is used as a neutralizing amine in crude oil distillation units. The amine of the invention gives superior neutralization at the first initial condensate compared to other commonly used neutralizing amines.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: June 24, 1997
    Assignee: Nalco/Exxon Energy Chemicals L. P.
    Inventors: Veronica K. Braden, Tannon S. Woodson
  • Corrosion inhibition in refineries using the reaction product of hydrocarbyl succinic anhydride and an amine
    Patent number: 5556575
    Abstract: Disclosed are a method for inhibiting corrosion in crude oil distillation towers, an improvement in crude oil fractionation, a method for dispersing iron sulfide in a hydrocarbon stream and a hydrocarbon dispersion using the reaction product of hydrocarbyl succinic anhydride and an amine. The reaction product has a molecular weight of from 500-800, the hydrocarbyl substituent has 6-20 carbon atoms, and the amine is selected from EDA, DETA, TETA, TEPA, PEHA, AEP, piperazine, 1,2-PDA, 1,3-PDA, IBPA, MDA or HMDA. The imide product is a filming inhibitor used to treat metal surfaces subject to mineral acid corrosion and disperse iron sulfide particles by adding 3 to 24 ppm to sweet or sour crude contacting the metal surfaces.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: September 17, 1996
    Assignee: Nalco/Exxon Energy Chemicals L.P.
    Inventors: Elizabeth Babaian-Kibala, Veronica K. Braden, Michael K. Poindexter, Christopher J. Murphy
  • Method for removing a cyanide contaminant from refinery waste water streams
    Patent number: 5415785
    Abstract: A method for reducing cyanide contaminants in refinery waste waters prior to reuse or release into the environment comprising adding to the waters a cyanide reactive scavenger comprising at least one amine-aldehyde reaction product.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: May 16, 1995
    Assignee: Nalco Chemical Company
    Inventors: Michael L. Braden, Veronica K. Braden, Manian Ramesh, Everett C. Phillips
  • Prevention of cracking and blistering of refinery steels by cyanide scavenging in petroleum refining processes
    Patent number: 5387393
    Abstract: Corrosion, cracking and blistering of steels in contact with water containing refinery streams contaminated with cyanide is inhibited or prevented by treating the streams with a cyanide reactive scavenger comprising at least one amine-aldehyde reaction product.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: February 7, 1995
    Assignee: Nalco Chemical Company
    Inventors: Veronica K. Braden, Manian Ramesh