Patents by Inventor Kirk Anguah OFEI

Kirk Anguah OFEI 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).

  • DUPLEX STAINLESS STEEL AND USE THEREOF
    Publication number: 20240035135
    Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy) which is suitable for use in a plant for the production of urea; and uses thereof. The disclosure also relates to objects made of said duplex stainless steel. Furthermore, the present disclosure also relates to a method for the production of urea and to a plant for the production of urea comprising one or more parts made from said duplex stainless steel, and to a method of modifying an existing plant for the production of urea.
    Type: Application
    Filed: October 5, 2023
    Publication date: February 1, 2024
    Inventors: Daniel GULLBERG, Christina HARALDSSON, Anders WILSON, Alexander Aleida Antonius SCHEERDER, Kirk Anguah OFEI
  • Ferritic steel parts in urea plants
    Patent number: 11746084
    Abstract: The application provides in an aspect a process for producing urea in a urea plant comprising a high pressure synthesis section comprising a reactor, wherein the process comprises reacting NH3 feed and CO2 feed under urea formation conditions in said reactor to form a urea synthesis solution comprising urea, water, carbamate and ammonia, wherein the process further comprises contacting a carbamate-containing liquid stream with an equipment part of said high pressure synthesis section that is made of a ferritic steel alloy.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: September 5, 2023
    Assignee: STAMICARBON B.V.
    Inventors: Kirk Anguah Ofei, Alexander Aleida Antonius Scheerder
  • FERRITIC STEEL PARTS IN UREA PLANTS
    Publication number: 20230123681
    Abstract: The application provides in an aspect a process for producing urea in a urea plant comprising a high pressure synthesis section comprising a reactor, wherein the process comprises reacting NH3 feed and CO2 feed under urea formation conditions in said reactor to form a urea synthesis solution comprising urea, water, carbamate and ammonia, wherein the process further comprises contacting a carbamate-containing liquid stream with an equipment part of said high pressure synthesis section that is made of a ferritic steel alloy.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 20, 2023
    Inventors: Kirk Anguah OFEI, Alexander Aleida Antonius SCHEERDER
  • FERRITIC STEEL PARTS IN UREA PLANTS
    Publication number: 20220251032
    Abstract: The application provides in an aspect a process for producing urea in a urea plant comprising a high pressure synthesis section comprising a reactor, wherein the process comprises reacting NH3 feed and CO2 feed under urea formation conditions in said reactor to form a urea synthesis solution comprising urea, water, carbamate and ammonia, wherein the process further comprises contacting a carbamate—containing liquid stream with an equipment part of said high pressure synthesis section that is made of a ferritic steel alloy.
    Type: Application
    Filed: July 3, 2020
    Publication date: August 11, 2022
    Inventors: Kirk Anguah OFEI, Alexander Aleida Antonius SCHEERDER
  • DUPLEX STAINLESS STEEL AND USE THEREOF
    Publication number: 20180195158
    Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy) which is suitable for use in a plant for the production of urea; and uses thereof. The disclosure also relates to objects made of said duplex stainless steel. Furthermore, the present disclosure also relates to a method for the production of urea and to a plant for the production of urea comprising one or more parts made from said duplex stainless steel, and to a method of modifying an existing plant for the production of urea.
    Type: Application
    Filed: July 20, 2016
    Publication date: July 12, 2018
    Applicant: STAMICARBON B.V.
    Inventors: Daniel GULLBERG, Christina HARALDSSON, Anders WILSON, Alexander Aleida Antonius SCHEERDER, Kirk Anguah OFEI