FR2375198A1 - Procede integre de fabrication d'ammoniac et d'uree, pour la production d'uree - Google Patents

Procede integre de fabrication d'ammoniac et d'uree, pour la production d'uree

Info

Publication number
FR2375198A1
FR2375198A1 FR7738884A FR7738884A FR2375198A1 FR 2375198 A1 FR2375198 A1 FR 2375198A1 FR 7738884 A FR7738884 A FR 7738884A FR 7738884 A FR7738884 A FR 7738884A FR 2375198 A1 FR2375198 A1 FR 2375198A1
Authority
FR
France
Prior art keywords
urea
ammonia
carbamate
production
decomposition
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.)
Granted
Application number
FR7738884A
Other languages
English (en)
Other versions
FR2375198B1 (fr
Inventor
Vincenzo Lagana
Lagana Et Francesco Savian Vincenzo
Francesco Savian
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of FR2375198A1 publication Critical patent/FR2375198A1/fr
Application granted granted Critical
Publication of FR2375198B1 publication Critical patent/FR2375198B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
    • C01C1/0488—Processes integrated with preparations of other compounds, e.g. methanol, urea or with processes for power generation
    • 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
    • C07C273/10—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 combined with the synthesis of ammonia
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

Procédé intégré de fabrication d'ammoniac et d'urée pour la production d'urée. Une amélioration du procédé SNAM de fabrication de l'urée intégré à la séparation de l'ammoniac est caractérisée par le fait qu'un flux gazeux obtenu par décomposition des hydrocarbures est envoyé vers un séparateur adiabatique 15 d'ammoniac placé en aval d'un appareil 16 de decomposition du carbamate, le séparateur adiabatique 15 recevant également une solution d'urée qui est riche en ammoniac provenant de l'appareil 16 de décomposition du carbamate. Le flux gazeux ainsi enrichi (NH3 , CO 2 , H2 O) est traité dans un absorbeur 17 à CO2 (ou dans le réacteur à carbamate) et le processus a lieu dans le réacteur 18 de synthèse de l'urée. Les boucles de recyclage et de récupération sont montées entre les diverses unités de réaction et/ou de décomposition. Ce procédé permet de fabriquer l'urée dans des conditions plus économiques.
FR7738884A 1976-12-23 1977-12-22 Procede integre de fabrication d'ammoniac et d'uree, pour la production d'uree Granted FR2375198A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30797/76A IT1065422B (it) 1976-12-23 1976-12-23 Processo ammoniaca-urea integrato per la produzione di urea

Publications (2)

Publication Number Publication Date
FR2375198A1 true FR2375198A1 (fr) 1978-07-21
FR2375198B1 FR2375198B1 (fr) 1980-06-06

Family

ID=11232110

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738884A Granted FR2375198A1 (fr) 1976-12-23 1977-12-22 Procede integre de fabrication d'ammoniac et d'uree, pour la production d'uree

Country Status (24)

Country Link
US (1) US4138434A (fr)
JP (1) JPS5379820A (fr)
AR (1) AR213462A1 (fr)
AU (1) AU511037B2 (fr)
BE (1) BE862286A (fr)
BR (1) BR7708615A (fr)
CA (1) CA1106405A (fr)
CH (1) CH629733A5 (fr)
CS (1) CS202587B2 (fr)
DD (1) DD133942A5 (fr)
DE (1) DE2756059C3 (fr)
DK (1) DK147496C (fr)
ES (1) ES465188A1 (fr)
FR (1) FR2375198A1 (fr)
GB (1) GB1560174A (fr)
IE (1) IE46220B1 (fr)
IN (1) IN145909B (fr)
IT (1) IT1065422B (fr)
LU (1) LU78737A1 (fr)
MX (1) MX150013A (fr)
NL (1) NL7714285A (fr)
PL (1) PL110233B1 (fr)
SE (1) SE432590B (fr)
SU (1) SU1152516A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421847A1 (fr) * 1978-04-05 1979-11-02 Snam Progetti Procede integre de synthese ammoniac-uree

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235816A (en) * 1979-03-08 1980-11-25 Snamprogetti S.P.A. Integrated ammonia-urea process
NL7903623A (nl) * 1979-05-09 1980-11-11 Stamicarbon Werkwijze voor het zuiveren van ureumhoudend afvalwater en werkwijze voor het bereiden van melamine.
NL8102391A (nl) * 1981-05-15 1982-12-01 Unie Van Kunstmestfab Bv Werkwijze voor het winnen van waardevolle bestanddelen uit de afvalstromen verkregen bij de ureumbereiding.
JPS61109760A (ja) * 1984-11-02 1986-05-28 Toyo Eng Corp 尿素製造法
NL8502228A (nl) * 1985-08-12 1987-03-02 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
NL8502227A (nl) * 1985-08-12 1987-03-02 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
JPS62220806A (ja) * 1986-03-24 1987-09-29 Fuji Electric Co Ltd 平面度測定装置
US4869887A (en) * 1987-10-30 1989-09-26 Dijk Christiaan P Van Integrated ammonia-urea process
US4988491A (en) * 1989-04-11 1991-01-29 Christiaan Van Dijk Flexible integration of the production of ammonia and urea
US5385646A (en) * 1993-09-03 1995-01-31 Farmland Industries, Inc. Method of treating chemical process effluent
US5779861A (en) * 1993-09-03 1998-07-14 Farmland Industries, Inc. Method for treating process condensate
US5643420A (en) * 1993-09-03 1997-07-01 Farmland Industries, Inc. Method for treating process condensate
EP0905127B1 (fr) 1997-09-20 2001-11-28 Urea Casale S.A. Procédé de production combinée d'ammoniaque et d'urée
DE69908548T2 (de) 1999-03-31 2004-04-29 Urea Casale S.A. Verfahren zur gleichzeitigen Modernisierung einer Ammoniakherstellungsanlage und einer Harnstoffherstellungsanlage
EP2617708B1 (fr) * 2012-01-17 2017-08-16 General Electric Technology GmbH Procédé de formation d'urée par intégration d'un procédé de production d'ammoniac dans un procédé de production d'urée et système associé
EP2690089A1 (fr) 2012-07-25 2014-01-29 Urea Casale SA Utilisation de gaz de purge de synthèse d'urée dans un procédé intégré de production d'urée-ammoniac et installation associée.
US9428449B2 (en) 2013-01-16 2016-08-30 Alstom Technology Ltd Method of forming urea by integration of an ammonia production process in a urea production process and a system therefor
DE102016203277A1 (de) 2016-02-29 2017-08-31 Thyssenkrupp Ag Integrierte Synthese von Ammoniak und Harnstoff
DE102016122374A1 (de) 2016-11-21 2018-05-24 Thyssenkrupp Ag Vollintegrierter Ammoniak-Harnstoff-Komplex

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE581293A (fr) * 1958-08-08 1900-01-01
BE564100A (fr) * 1962-04-10 1900-01-01
US3954861A (en) * 1968-02-05 1976-05-04 Snamprogetti S.P.A Process for producing urea
NL156686B (nl) * 1968-03-16 1978-05-16 Stamicarbon Werkwijze voor de bereiding van ureum in combinatie met de synthese van ammoniak.
US3876696A (en) * 1968-09-03 1975-04-08 Snam Progetti Process for the production of urea having a low carbamate content
US3607939A (en) * 1968-12-23 1971-09-21 Stamicarbon Preparation of urea in combination with the synthesis of ammonia
US3711544A (en) * 1970-04-20 1973-01-16 Lummus Co Heat recovery in urea synthesis
NL172058C (nl) * 1972-06-12 1983-07-01 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
IT1014987B (it) * 1974-06-12 1977-04-30 Snam Progetti Procedimento integrato urea am moniaca

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421847A1 (fr) * 1978-04-05 1979-11-02 Snam Progetti Procede integre de synthese ammoniac-uree

Also Published As

Publication number Publication date
DK147496B (da) 1984-09-03
DE2756059B2 (de) 1979-08-23
SU1152516A3 (en) 1985-04-23
JPS5379820A (en) 1978-07-14
CA1106405A (fr) 1981-08-04
DK147496C (da) 1985-03-04
AR213462A1 (es) 1979-01-31
AU511037B2 (en) 1980-07-24
GB1560174A (en) 1980-01-30
CS202587B2 (en) 1981-01-30
JPS6134407B2 (fr) 1986-08-07
SE7714701L (sv) 1978-06-24
IE46220B1 (en) 1983-04-06
PL203246A1 (pl) 1978-12-04
AU3092277A (en) 1979-05-31
CH629733A5 (it) 1982-05-14
IT1065422B (it) 1985-02-25
SE432590B (sv) 1984-04-09
FR2375198B1 (fr) 1980-06-06
DK572077A (da) 1978-06-24
US4138434A (en) 1979-02-06
BR7708615A (pt) 1978-08-22
ES465188A1 (es) 1978-10-01
DE2756059A1 (de) 1978-06-29
DE2756059C3 (de) 1980-04-30
LU78737A1 (fr) 1978-04-17
IE46220L (en) 1978-06-23
IN145909B (fr) 1979-01-20
MX150013A (es) 1984-03-02
PL110233B1 (en) 1980-07-31
BE862286A (fr) 1978-06-23
NL7714285A (nl) 1978-06-27
DD133942A5 (de) 1979-01-31

Similar Documents

Publication Publication Date Title
FR2375198A1 (fr) Procede integre de fabrication d'ammoniac et d'uree, pour la production d'uree
FR2368436A1 (fr) Procede de separation de melanges gazeux
GB1365707A (en) Process for preparing urea
YU284782A (en) Process for the manufacture of melamine by means of catalytic conversion of carbamide in the presence of gaseous nh3 or an nh3containing gaseous mixture
GB1520561A (en) Flexible integrated method for the production of ammonila and urea
FR2394493A1 (fr) Procede perfectionne de fabrication d'acide nitrique par contact gaz-liquide
GB1106024A (en) Urea synthesis
GB853220A (en) Process and apparatus for the preparation of urea from ammonia and carbon dioxide
ATE129987T1 (de) Verfahren zur abtrennung von isocyansäure aus einem gemisch von isocyansäure und ammoniak.
ES2061961T3 (es) Procedimiento integrado para la produccion de aminoacetonitrilos.
GB1333897A (en) Process for removing sulphur dioxide from a gas
GB1494272A (en) Apparatus for the removal of a gaseous component from a gas stream
EP1735411A2 (fr) Procede de regulation de composes contenant de l'azote dans du gaz de synthese
BE900637A (fr) Procede pour la production de gaz de synthese d'ammoniac.
EA199800056A1 (ru) Способ повышения производительности существующего процесса получения мочевины
GB1247060A (en) Process for the preparation of urea in combination with the synthesis of ammonia
ES443998A1 (es) Procedimiento para el tratamiento de vapor de agua generado al concentrar una solucion acuosa de urea.
GB1147734A (en) Method for the preparation of urea
GB1246660A (en) Process for the preparation of urea in combination with the synthesis of ammonia
MA19404A1 (fr) Procede pour la preparation de l'uree
CH637633A5 (it) Procedimento integrato ammoniaca-urea.
GB1535555A (en) Removing cracking catalyst fines and sulphur dioxide from effluent gases
SU763331A1 (ru) Способ получени мочевины
GB1160980A (en) Urea Process
RU94007348A (ru) Способ синтеза мочевины

Legal Events

Date Code Title Description
ST Notification of lapse