AR038220A1 - UREA PREPARATION PROCEDURE - Google Patents

UREA PREPARATION PROCEDURE

Info

Publication number
AR038220A1
AR038220A1 ARP030100209A AR038220A1 AR 038220 A1 AR038220 A1 AR 038220A1 AR P030100209 A ARP030100209 A AR P030100209A AR 038220 A1 AR038220 A1 AR 038220A1
Authority
AR
Argentina
Prior art keywords
urea
high pressure
condenser
rectification
water vapor
Prior art date
Application number
Other languages
Spanish (es)
Inventor
Josef Hubert Meessen
Original Assignee
Dsm Ip Assets 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 Dsm Ip Assets Bv filed Critical Dsm Ip Assets Bv
Publication of AR038220A1 publication Critical patent/AR038220A1/en

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

Procedimiento para la preparación de urea a partir de dióxido de carbono y amoniaco por medio de un procedimiento de rectificación de urea, que comprende una torre de rectificación de alta presión y un condensador de alta presión, con lo que se forma una solución de síntesis de urea, y en el que el vapor de agua condensado que se forma durante la rectificación a alta presión de la solución de síntesis de urea se usa para la descomposición a media presión del carbamato de amonio en la solución de síntesis de urea. caracterizado porque se usa una combinación del vapor de agua condensado y el vapor de agua A, que se forma en el condensador de alta presión, para la descomposición a media presión, siendo el condensador de alta presión un condensador sumergido. La presente también se refiere a un procedimiento para mejorar una planta de urea que comprende un procedimiento de rectificación térmica.Process for the preparation of urea from carbon dioxide and ammonia by means of a urea rectification process, which comprises a high pressure rectification tower and a high pressure condenser, thereby forming a synthesis solution of urea, and in which the condensed water vapor that is formed during the high pressure rectification of the urea synthesis solution is used for the medium pressure decomposition of the ammonium carbamate in the urea synthesis solution. characterized in that a combination of condensed water vapor and water vapor A, which is formed in the high pressure condenser, is used for medium pressure decomposition, the high pressure condenser being a submerged condenser. The present also refers to a process for improving a urea plant comprising a thermal rectification process.

ARP030100209 2002-01-28 2003-01-24 UREA PREPARATION PROCEDURE AR038220A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1019848A NL1019848C2 (en) 2002-01-28 2002-01-28 Process for the preparation of urea.

Publications (1)

Publication Number Publication Date
AR038220A1 true AR038220A1 (en) 2005-01-05

Family

ID=27656498

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP030100209 AR038220A1 (en) 2002-01-28 2003-01-24 UREA PREPARATION PROCEDURE

Country Status (8)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1918273A1 (en) † 2006-11-04 2008-05-07 Urea Casale S.A. Process for urea production and related plant
EA034717B1 (en) * 2012-05-03 2020-03-12 Стамикарбон Б.В. Method 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 (en) * 2013-08-30 2014-02-12 北京丰汉工程技术有限公司 Urea synthesis device and urea synthesis method
JP7088770B2 (en) 2018-07-26 2022-06-21 東洋エンジニアリング株式会社 Urea production method and equipment
US20220185772A1 (en) * 2019-03-14 2022-06-16 Toyo Engineering Corporation Process and apparatus for urea production
JP7157684B2 (en) 2019-03-14 2022-10-20 東洋エンジニアリング株式会社 Urea production method and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1068268B (en) * 1976-09-09 1985-03-21 Snam Progetti PROCEDURE FOR THE PRODUCTION OF UREA AND PURIFICATION OF WATERS
NL1003923C2 (en) * 1996-08-30 1998-03-04 Dsm Nv Process for the preparation of urea.

Also Published As

Publication number Publication date
CA2473224A1 (en) 2003-08-07
AU2002360227B2 (en) 2009-02-26
WO2003064379A1 (en) 2003-08-07
CA2473224C (en) 2012-09-25
CN1617853A (en) 2005-05-18
RU2301798C2 (en) 2007-06-27
CN1260209C (en) 2006-06-21
RU2004126243A (en) 2006-01-27
MY140851A (en) 2010-01-29
NL1019848C2 (en) 2003-07-30

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Legal Events

Date Code Title Description
FG Grant, registration
FD Application declared void or lapsed, e.g., due to non-payment of fee