Patents by Inventor Alexander Semenyuk

Alexander Semenyuk 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).

  • NEUTRALIZATION OF HYDROGEN SULFIDE AND LIGHT MERCAPTANES IN HYDROCARBON MEDIA
    Publication number: 20220177787
    Abstract: Disclosed is a composition and method for neutralization of hydrogen sulfide and light mercaptanes from hydrocarbon media, and improvement of the copper strip indicator in petroleum products. The composition is an aqueous solution of polysulfides comprising alkali metals and/or polysulfides of primary or secondary ethanolamines, alkali metal hydroxides, water-soluble alkylamines and optionally alkali metal nitrites.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Inventors: Konstantin Poukalov, SR., Alexander Semenyuk
  • COMPOSITION AND METHOD FOR ELIMINATION OF HYDROGEN SULFIDE AND MERCAPTANS
    Publication number: 20210198583
    Abstract: A scavenging composition and method for scavenging hydrogen sulfide and/or mercaptans from fluids. The scavenging composition comprises an alkali metal nitrite and a nitrogen-containing scavenger, and optionally an inorganic base, as a hydrogen sulfide and/or a mercaptan scavenger for hydrocarbon fluids, particularly for crude oil, field oil, fuel oil, straight run distillates, cracked distillates, residual fuels, natural gas, petroleum associated gas and the like.
    Type: Application
    Filed: March 12, 2021
    Publication date: July 1, 2021
    Inventors: Konstantin Poukalov, SR., Alexander Semenyuk, Kevin G. Liu
  • COMPOSITION AND METHOD FOR ELIMINATION OF HYDROGEN SULFIDE AND MERCAPTANS
    Publication number: 20200123451
    Abstract: A scavenging composition and method for scavenging hydrogen sulfide and/or mercaptans from fluids. The scavenging composition comprises an alkali metal nitrite and a nitrogen-containing scavenger, and optionally an inorganic base, as a hydrogen sulfide and/or a mercaptan scavenger for hydrocarbon fluids, particularly for crude oil, field oil, fuel oil, straight run distillates, cracked distillates, residual fuels, natural gas, petroleum associated gas and the like.
    Type: Application
    Filed: June 26, 2018
    Publication date: April 23, 2020
    Inventors: Konstantin Poukalov, Sr., Alexander Semenyuk, Kevin G. Liu
  • NEUTRALIZATION OF HYDROGEN SULFIDE AND LIGHT MERCAPTANES IN HYDROCARBON MEDIA
    Publication number: 20180179451
    Abstract: Disclosed is a composition and method for neutralization of hydrogen sulfide and light mercaptanes from hydrocarbon media, and improvement of the copper strip indicator in petroleum products. The composition is an aqueous solution of polysulfides comprising alkali metals and/or polysulfides of primary or secondary ethanolamines, alkali metal hydroxides, water-soluble alkylamines and optionally alkali metal nitrites.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 28, 2018
    Inventors: Konstantin Poukalov, SR., Alexander Semenyuk