Patents Assigned to Stamicarbon B.V.
  • Publication number: 20250115547
    Abstract: Disclosed is a method for the integrated production of two different urea products. One is an aqueous urea solution suitable for use in NOx abatement (generally indicated as Diesel Exhaust Fluid DEF). The other is a solution used as a fertilizer, viz. Urea Ammonium Nitrate (UAN). The production of DEF and UAN are integrated as follows: ammonia recovered from the production of urea is used as a feed to the production of ammonium nitrate. At least part of an aqueous urea stream from urea production, is mixed with ammonium nitrate so as to obtain UAN.
    Type: Application
    Filed: December 18, 2024
    Publication date: April 10, 2025
    Applicant: STAMICARBON B.V.
    Inventors: Joey DOBREE, Johannes Henricus MENNEN
  • Publication number: 20250108350
    Abstract: The disclosure pertains in certain embodiments to a plant and to urea production in a plant comprising a valve body comprising an inner body part and an outer body part.
    Type: Application
    Filed: March 28, 2023
    Publication date: April 3, 2025
    Applicant: STAMICARBON B.V.
    Inventors: Paul Maria Gerardus Clemens Petrus Hubertus JORISSEN, Alexander Aleida Antonius SCHEERDER, Kirk Anguah OFEI, Alessandro BRUN, Michael SIMML
  • Publication number: 20250108349
    Abstract: The disclosure pertains to a fluidized bed granulation process, for instance for urea melt. An embodiment of the process comprises providing a fluidized bed of the particles in a granulation compartment of the fluidized bed granulator; forming a film of the granulation liquid in the form of a hollow conical frustum projecting into the granulation compartment by supplying the granulation liquid through a first channel of a granulation nozzle; supplying secondary gas stream through a secondary gas channel of the granulation nozzle into the granulation compartment, wherein the secondary gas channel is provided as an annulus around the first channel, wherein the exit of the secondary gas channel is directly exposed to the fluidized bed in the granulation compartment, wherein particles from the fluidized bed are entrained in said secondary gas stream.
    Type: Application
    Filed: August 29, 2023
    Publication date: April 3, 2025
    Applicant: STAMICARBON B.V.
    Inventors: Barbara CUCCHIELLA, Juan GONZALEZ COLOMA
  • Publication number: 20250091986
    Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.
    Type: Application
    Filed: December 5, 2024
    Publication date: March 20, 2025
    Applicant: Stamicarbon B.V.
    Inventor: Wilhelmus Hubertus GEURTS
  • Patent number: 12240800
    Abstract: Embodiments pertain to a urea plant and to the operation of a urea plant in a reduced load mode. In embodiments, two evaporators in parallel are used, connected to a finishing section respectively to a melamine plant.
    Type: Grant
    Filed: November 22, 2023
    Date of Patent: March 4, 2025
    Assignee: Stamicarbon B.V.
    Inventors: Branislav Manic, Rahul Patil
  • Patent number: 12215071
    Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.
    Type: Grant
    Filed: March 19, 2024
    Date of Patent: February 4, 2025
    Assignee: Stamicarbon B.V.
    Inventor: Wilhelmus Hubertus Geurts
  • Patent number: 12209061
    Abstract: Disclosed is a method for the integrated production of two different urea products. One is an aqueous urea solution suitable for use in NOx abatement (generally indicated as Diesel Exhaust Fluid DEF). The other is a solution used as a fertilizer, viz. Urea Ammonium Nitrate (UAN). The production of DEF and UAN are integrated as follows: ammonia recovered from the production of urea is used as a feed to the production of ammonium nitrate. At least part of an aqueous urea stream from urea production, is mixed with ammonium nitrate so as to obtain UAN.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: January 28, 2025
    Assignee: STAMICARBON B.V.
    Inventors: Joey Dobree, Johannes Henricus Mennen
  • Patent number: 12186725
    Abstract: The disclosure pertains to a high pressure carbamate condensation apparatus for a urea plant, a urea plant, and a urea production method. The apparatus comprises a first U-shaped tube bundle arranged around a second U-shaped tube bundle.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: January 7, 2025
    Assignee: Stamicarbon B.V.
    Inventors: Rahul Patil, Lambertus Wilhelmus Gevers, Markus Theodorus Marie Michaƫl Wagemans
  • Publication number: 20250002360
    Abstract: The disclosure pertains to a plant for the production of ammonia. The ammonia is produced from hydrogen obtained by electrolysis of water. The electrolysis is powered by a renewable source of energy, complemented with power obtained from the plant during periods of low or no availability of the renewable energy. To this end, the plant is configured such that it can be operated in a charge configuration (obtaining and storing power) and a discharge configuration (employing said power).
    Type: Application
    Filed: September 12, 2023
    Publication date: January 2, 2025
    Applicant: STAMICARBON B.V.
    Inventors: Joey DOBREE, Mahal PATEL, Paolo MAZZARA
  • Patent number: 12179138
    Abstract: Disclosed is a method for the removal of urea dust from the off-gas of a finishing section of a urea production plant. the method comprises subjecting the off-gas to quenching with water so as to produce quenched off-gas. The quenched off-gas is subjected to humidification by mixing said quenched gas stream with a humidification fluid selected from (a) saturated steam and (b) superheated steam mixed with a second aqueous stream, so as to produce a humidified gas stream, subjecting said humidified gas stream to particle separation (i.e., dust removal) by means of a scrubbing liquid in which at least part of the particles in the gas stream are soluble.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: December 31, 2024
    Assignee: STAMICARBON B.V.
    Inventors: Cain Christopher Doherty, Aloysius Mechteldis Emmanuel Schoenmakers
  • Publication number: 20240425449
    Abstract: The disclosure pertains to a urea production process wherein carbamate in a medium pressure (MP) urea solution is decomposed in a tube bundle of a high pressure (HP) carbamate condenser and resulting gas is condensed in indirect heat exchange with urea solution to be heated and wherein a high pressure (HP) stripper is preferably operated with relatively low stripping efficiency.
    Type: Application
    Filed: February 21, 2023
    Publication date: December 26, 2024
    Applicant: STAMICARBON B.V.
    Inventor: Rahul Patil
  • Patent number: 12151987
    Abstract: A urea plant and urea production process of the stripping type are provided that are adapted for making Diesel Exhaust Fluid (DEF) or precursor thereof in a DEF production unit downstream of a treatment section. The treatment section receives a part of the urea synthesis stream from a reaction zone, in particular bypassing the HP stripper.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: November 26, 2024
    Assignee: STAMICARBON B.V.
    Inventors: Johan Albert Arno Van Den Tillaart, Eelco Mostert
  • Patent number: 12139448
    Abstract: The disclosure pertains to urea production with, in series, an MP carbamate condenser for condensing at least urea synthesis section off-gas, gas/liquid separation giving a gas stream and a liquid stream, and a second carbamate condenser receiving off-gas from melamine production and said liquid stream.
    Type: Grant
    Filed: October 13, 2023
    Date of Patent: November 12, 2024
    Assignee: Stamicarbon B.V.
    Inventors: Solomon Assefa Wassie, Rahul Patil
  • Patent number: 12134590
    Abstract: The disclosure pertains to a coupled plant process for the production of urea and melamine, with a urea synthesis section with HP CO2 stripping, and with a part of the CO2 feed supplied to a recovery section.
    Type: Grant
    Filed: November 22, 2023
    Date of Patent: November 5, 2024
    Assignee: Stamicarbon B.V.
    Inventors: Rahul Patil, Johannes Henricus Mennen, Lambertus Wilhelmus Gevers
  • Patent number: 12115512
    Abstract: Embodiments of the disclosure pertain to a chemical reactor comprising a mixing zone comprising first static mixer and a second static mixer both arranged in shell of the reactor, wherein the second static mixer is positioned further from said first inlet than said first static mixer, wherein the second static mixer is adapted for more intimate mixing of fluids in the reaction mixture than the first static mixer.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: October 15, 2024
    Assignee: STAMICARBON B.V.
    Inventors: Ronny Albert Mathijs Pustjens, Johan Albert Arno Van Den Tillaart
  • Patent number: 12083468
    Abstract: Disclosed is a method for the removal of soluble particulate matter from a gas stream, such as urea dust from the off-gas of a finishing section of a urea production plant. The method comprises subjecting the off-gas to at least two quenching stages an aqueous quenching liquid. The quenching liquid used in a first, upstream quench stage, is allowed to have a higher concentration of dissolved particulate matter than the quenching liquid in the second, downstream quench stage. The quenched gas is led through a particle capture zone, typically comprising one or more of a wet scrubber, a Venturi scrubber, and a wet electrostatic precipitator.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: September 10, 2024
    Assignee: STAMICARBON B.V.
    Inventor: Brian Sayre Higgins
  • Patent number: 12084406
    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: December 21, 2022
    Date of Patent: September 10, 2024
    Assignee: STAMICARBON B.V.
    Inventors: Kirk Anguah Ofei, Alexander Aleida Antonius Scheerder
  • Publication number: 20240279165
    Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.
    Type: Application
    Filed: March 19, 2024
    Publication date: August 22, 2024
    Applicant: Stamicarbon B.V.
    Inventor: Wilhelmus Hubertus GEURTS
  • Publication number: 20240279164
    Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.
    Type: Application
    Filed: March 19, 2024
    Publication date: August 22, 2024
    Applicant: Stamicarbon B.V.
    Inventor: Wilhelmus Hubertus GEURTS
  • Publication number: 20240270685
    Abstract: The disclosure pertains to a coupled plant process for the production of urea and melamine, with a urea synthesis section with HP CO2 stripping, and with a part of the CO2 feed supplied to a recovery section.
    Type: Application
    Filed: November 22, 2023
    Publication date: August 15, 2024
    Applicant: Stamicarbon B.V.
    Inventors: Rahul PATIL, Johannes Henricus MENNEN, Lambertus Wilhelmus GEVERS