公开(公告)号：US20180326345A1

公开(公告)日：2018-11-15

申请号：US15536077

申请日：2015-12-17

Applicant: Stamicarbon B.V.

Inventor： Cain Christopher DOHERTY ,  Aloysius Mechteldis Emmanuel SCHOENMAKERS

IPC: B01D47/10 ,  B01D47/06 ,  B01D47/05

CPC classification number: B01D47/10 ,  B01D47/05 ,  B01D47/06 ,  C05C9/00 ,  C07C273/02 ,  C07C273/04

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.

公开(公告)号：US20250091986A1

公开(公告)日：2025-03-20

申请号：US18970291

申请日：2024-12-05

Applicant: Stamicarbon B.V.

Inventor： Wilhelmus Hubertus GEURTS

IPC: C07C273/04 ,  B01D5/00 ,  B01J3/02 ,  B01J3/04

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.

公开(公告)号：US12215071B2

公开(公告)日：2025-02-04

申请号：US18609842

申请日：2024-03-19

Applicant: Stamicarbon B.V.

Inventor： Wilhelmus Hubertus Geurts

IPC: C07C273/04 ,  B01D5/00 ,  B01J3/02 ,  B01J3/04

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.

公开(公告)号：US20250002360A1

公开(公告)日：2025-01-02

申请号：US18729381

申请日：2023-09-12

Applicant: STAMICARBON B.V.

Inventor： Joey DOBREE ,  Mahal PATEL ,  Paolo MAZZARA

IPC: C01C1/04 ,  C25B1/04 ,  F01D15/10

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).

公开(公告)号：US20240425449A1

公开(公告)日：2024-12-26

申请号：US18716802

申请日：2023-02-21

Applicant: STAMICARBON B.V.

Inventor： Rahul Patil

IPC: C07C273/04

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.

公开(公告)号：US12151987B2

公开(公告)日：2024-11-26

申请号：US18256554

申请日：2023-02-14

Applicant: STAMICARBON B.V.

Inventor： Johan Albert Arno Van Den Tillaart ,  Eelco Mostert

IPC: C05C9/00 ,  C05G5/23 ,  C07C273/04 ,  C07C273/16

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.

公开(公告)号：US20240279165A1

公开(公告)日：2024-08-22

申请号：US18609842

申请日：2024-03-19

Applicant: Stamicarbon B.V.

Inventor： Wilhelmus Hubertus GEURTS

IPC: C07C273/04 ,  B01D5/00 ,  B01J3/02 ,  B01J3/04

CPC classification number: C07C273/04 ,  B01D5/0075 ,  B01J3/02 ,  B01J3/042

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.

公开(公告)号：US12060313B2

公开(公告)日：2024-08-13

申请号：US18007232

申请日：2022-02-22

Applicant: STAMICARBON B.V.

Inventor： Wilhelmus Hubertus Geurts

IPC: B01J10/00 ,  B01J19/00 ,  C01C1/18 ,  C07C273/04

CPC classification number: C07C273/04 ,  B01J10/00 ,  B01J19/0053 ,  B01J19/0086 ,  C01C1/185 ,  B01J2219/00006 ,  B01J2219/0002 ,  B01J2219/00038 ,  B01J2219/00761

Abstract: Some embodiments of the disclosure pertain to a plant and a process for producing a urea-containing product. The plant comprises a medium pressure dissociation unit and a high pressure CO2 stripper each receiving a part of the urea synthesis solution. Stripped urea solution is further treated in a medium pressure treatment unit.

公开(公告)号：US20240262787A1

公开(公告)日：2024-08-08

申请号：US18621755

申请日：2024-03-29

Applicant: STAMICARBON B.V.

Inventor： Kirk Anguah OFEI ,  Alexander Aleida Antonius SCHEERDER

IPC: C07C273/04 ,  B01D1/06 ,  B01D3/34 ,  B01J19/00 ,  B01J19/02 ,  B22F7/06 ,  C07C273/16 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/26 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48

CPC classification number: C07C273/04 ,  B01D1/065 ,  B01D3/346 ,  B01J19/0013 ,  B01J19/02 ,  C07C273/16 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/26 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  B01J2219/00081 ,  B01J2219/0286 ,  B22F7/064 ,  B22F2301/35 ,  C21D2211/005

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.

公开(公告)号：US20240092730A1

公开(公告)日：2024-03-21

申请号：US18248902

申请日：2022-12-19

Applicant: STAMICARBON B.V.

Inventor： Johan Albert Arno VAN DEN TILLAART ,  Eelco MOSTERT

IPC: B01D5/00 ,  C07C273/04

CPC classification number: B01D5/0012 ,  C07C273/04

Abstract: The disclosure pertains to a urea plant and process of the thermal stripping type as well as to a method of modifying a urea plant of the thermal stripping type. Provided is a urea plant with a thermal stripper and a high pressure carbamate condenser with a shell space wherein gas from the stripper is condensed in the shell space.