CA2473224C - Procede de preparation d'uree - Google Patents

Procede de preparation d'uree Download PDF

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Publication number
CA2473224C
CA2473224C CA2473224A CA2473224A CA2473224C CA 2473224 C CA2473224 C CA 2473224C CA 2473224 A CA2473224 A CA 2473224A CA 2473224 A CA2473224 A CA 2473224A CA 2473224 C CA2473224 C CA 2473224C
Authority
CA
Canada
Prior art keywords
pressure
condenser
urea
steam
stripping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA2473224A
Other languages
English (en)
Other versions
CA2473224A1 (fr
Inventor
Jozef Hubert Meessen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Publication of CA2473224A1 publication Critical patent/CA2473224A1/fr
Application granted granted Critical
Publication of CA2473224C publication Critical patent/CA2473224C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/0013—Controlling the temperature of the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00121—Controlling the temperature by direct heating or cooling
    • B01J2219/0013—Controlling the temperature by direct heating or cooling by condensation of reactants

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un procédé de préparation d'urée à partir de dioxyde de carbone et d'ammoniac, au moyen d'un procédé de lavage d'urée, ce procédé mettant en oeuvre un dispositif de lavage haute pression et un condensateur haute pression. Une solution de synthèse d'urée est formée, et le condensé de vapeur qui se forme durant le lavage haute pression de la solution de synthèse d'urée est utilisé pour la décomposition à pression moyenne du carbamate d'ammonium dans la solution de synthèse d'urée. Ce procédé se caractérise en ce que la combinaison du condensé de vapeur et de la vapeur A, qui se forme dans le condensateur haute pression, est utilisée pour la décomposition à pression moyenne, le condensateur à haute pression étant un condensateur immergé. L'invention concerne également un procédé permettant d'améliorer une installation de production d'urée comprenant un procédé de lavage thermique.
CA2473224A 2002-01-28 2002-12-30 Procede de preparation d'uree Expired - Fee Related CA2473224C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1019848A NL1019848C2 (nl) 2002-01-28 2002-01-28 Werkwijze voor de bereiding van ureum.
NL1019848 2002-01-28
PCT/NL2002/000874 WO2003064379A1 (fr) 2002-01-28 2002-12-30 Procede de preparation d'uree

Publications (2)

Publication Number Publication Date
CA2473224A1 CA2473224A1 (fr) 2003-08-07
CA2473224C true CA2473224C (fr) 2012-09-25

Family

ID=27656498

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2473224A Expired - Fee Related CA2473224C (fr) 2002-01-28 2002-12-30 Procede de preparation d'uree

Country Status (8)

Country Link
CN (1) CN1260209C (fr)
AR (1) AR038220A1 (fr)
AU (1) AU2002360227B2 (fr)
CA (1) CA2473224C (fr)
MY (1) MY140851A (fr)
NL (1) NL1019848C2 (fr)
RU (1) RU2301798C2 (fr)
WO (1) WO2003064379A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1918273A1 (fr) † 2006-11-04 2008-05-07 Urea Casale S.A. Procédé et installation pour la production d'urée
AU2013257378B2 (en) * 2012-05-03 2017-03-09 Stamicarbon B.V. Method and apparatus for the production of urea from ammonia and carbon dioxide
GB201208312D0 (en) * 2012-05-11 2012-06-27 Afc Energy Plc Fuel cell system
CN103570588A (zh) * 2013-08-30 2014-02-12 北京丰汉工程技术有限公司 一种尿素合成装置及合成方法
JP7088770B2 (ja) 2018-07-26 2022-06-21 東洋エンジニアリング株式会社 尿素製造方法および装置
US12247002B2 (en) 2019-03-14 2025-03-11 Toyo Engineering Corporation Process and apparatus for urea production
JP7157684B2 (ja) 2019-03-14 2022-10-20 東洋エンジニアリング株式会社 尿素製造方法および装置
EP3736415A1 (fr) * 2019-05-10 2020-11-11 Yara International ASA Ensemble de réseau de vapeur pour une installation comprenant une unité de production d'ammoniac et une unité de production d'urée
US12319646B2 (en) 2022-02-21 2025-06-03 Stamicarbon B.V. Low biuret urea production

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1068268B (it) * 1976-09-09 1985-03-21 Snam Progetti Procedimento per la produzione di urea e purificazione delle acque
DE69326881D1 (de) * 1993-01-07 1999-12-02 Urea Casale Sa Verbessertes Verfahren zur Produktion von Harnstoff unter Verwendung eines Schrittes zur Kohlendioxidentfernung
US5767313A (en) * 1995-05-23 1998-06-16 Dsm N.V. Method for the preparation of urea
NL1003923C2 (nl) * 1996-08-30 1998-03-04 Dsm Nv Werkwijze voor de bereiding van ureum.
US6552224B2 (en) * 2000-06-15 2003-04-22 Urea Casale S.A. Process and plant for the production of urea

Also Published As

Publication number Publication date
AR038220A1 (es) 2005-01-05
CN1260209C (zh) 2006-06-21
NL1019848C2 (nl) 2003-07-30
AU2002360227B2 (en) 2009-02-26
WO2003064379A1 (fr) 2003-08-07
RU2004126243A (ru) 2006-01-27
MY140851A (en) 2010-01-29
CA2473224A1 (fr) 2003-08-07
RU2301798C2 (ru) 2007-06-27
CN1617853A (zh) 2005-05-18

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MKLA Lapsed

Effective date: 20181231