BE902246A - Procede de fabrication d'uree. - Google Patents

Procede de fabrication d'uree.

Info

Publication number
BE902246A
BE902246A BE0/214885A BE214885A BE902246A BE 902246 A BE902246 A BE 902246A BE 0/214885 A BE0/214885 A BE 0/214885A BE 214885 A BE214885 A BE 214885A BE 902246 A BE902246 A BE 902246A
Authority
BE
Belgium
Prior art keywords
decomposition
urea
phase
condensers
tubes
Prior art date
Application number
BE0/214885A
Other languages
English (en)
Inventor
S Menicatti
C Miola
F Granelli
Original Assignee
Snam Progetti
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 Snam Progetti filed Critical Snam Progetti
Publication of BE902246A publication Critical patent/BE902246A/fr

Links

Classifications

    • 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
    • B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
    • 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
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/2425—Tubular reactors in parallel
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
    • 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
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
    • B01J2219/0236—Metal based
    • 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
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
    • B01J2219/0277—Metal based
    • B01J2219/0286—Steel
    • 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
    • Y02P20/141—Feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Procédé de fabrication d'urée comprenant une phase de réaction entre de l'ammoniac et CO2 dans un ou plusieurs réacteurs, de manière à produire une solution aqueuse contenant de l'urée, du carbamate d'ammonium et l'excédent de l'ammoniac utilisé dans la synthèse, une phase de décomposition du carbamate d'ammonium dans des appareils de décomposition avec une élimination des produits de décomposition, une phase de condensation dans des condenseurs des produits de décomposition du carbamate en meme temps que des agents d'élimination les appareils de décomposition et/ou les condenseurs étant des pièces d'appareillage du type muni d'un ensemble de tubes, en acier de la qualité convenant pour l'urée, revetus intérieurement d'une mince feuille de zirconium non soudée auxdits tubes.
BE0/214885A 1984-04-20 1985-04-19 Procede de fabrication d'uree. BE902246A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8420635A IT1209532B (it) 1984-04-20 1984-04-20 Processo per la sintesi di urea e materiale utilizzato nello stesso.

Publications (1)

Publication Number Publication Date
BE902246A true BE902246A (fr) 1985-10-21

Family

ID=11169848

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/214885A BE902246A (fr) 1984-04-20 1985-04-19 Procede de fabrication d'uree.

Country Status (22)

Country Link
US (1) US4899813A (fr)
JP (1) JPS60233047A (fr)
AR (1) AR240914A1 (fr)
AU (1) AU572284B2 (fr)
BE (1) BE902246A (fr)
CA (1) CA1331993C (fr)
DE (1) DE3514250A1 (fr)
DK (1) DK175985D0 (fr)
ES (1) ES8603288A1 (fr)
FR (1) FR2563217A1 (fr)
GB (1) GB2157687B (fr)
GR (1) GR850954B (fr)
IN (1) IN164410B (fr)
IT (1) IT1209532B (fr)
LU (1) LU85857A1 (fr)
MX (1) MX160685A (fr)
NL (1) NL8501151A (fr)
NO (1) NO163559C (fr)
PT (1) PT80322B (fr)
SE (1) SE8501859L (fr)
SU (1) SU1731045A3 (fr)
ZA (1) ZA852725B (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2072966C1 (ru) * 1990-03-12 1997-02-10 Уриа Казале С.А. Способ конденсации паров аммиака углекислого газа и воды, образующихся при обработке раствора, поступающего из реактора получения мочевины и устройство для его осуществления
DE9405062U1 (de) * 1994-03-24 1994-05-26 Hoval Interliz Ag, Vaduz-Neugut Wärmetauscherrohr für Heizkessel
DE29515406U1 (de) * 1995-09-20 1997-01-30 Ruhr Oel GmbH, 45896 Gelsenkirchen Rohrbündel-Wärmeübertrager
AT403735B (de) * 1996-03-11 1998-05-25 Vaillant Gmbh Lamellenwärmetauscher
US6318094B1 (en) 2000-08-11 2001-11-20 Paul Mueller Company Bimetallic tube in a heat exchanger of an ice making machine
ITMI20021009A1 (it) * 2002-05-13 2003-11-13 Snam Progetti Apparecchiatura a fascio tubiero per processare fluidi corrosivi
EP1577632A1 (fr) * 2004-03-16 2005-09-21 Urea Casale S.A. Dispositif pour le traitement d'agents hautement corrosifs
US7922065B2 (en) * 2004-08-02 2011-04-12 Ati Properties, Inc. Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts
ITMI20061223A1 (it) 2006-06-26 2007-12-27 Snam Progetti Tubo bimetallico resistente alla corrosione e suo utilizzo in apparecchiature a fascio tubiwero
IT1391426B1 (it) 2008-07-17 2011-12-23 Snam Progetti Apparecchiatura a fascio tubiero per processare fluidi corrosivi
EP2286909A1 (fr) * 2009-08-17 2011-02-23 Stamicarbon B.V. Appareil pour la décomposition de carbamate d'ammonium non converti dans des solutions d'urée dans un procédé de synthèse d'urée
US10118259B1 (en) 2012-12-11 2018-11-06 Ati Properties Llc Corrosion resistant bimetallic tube manufactured by a two-step process
EP2801396A1 (fr) * 2013-05-10 2014-11-12 Casale Sa Utilisation d'un acier inoxydable duplex dans un appareil de dégazage pour le stripage d'ammoniaque ou d'une installation d'auto-strippage d'urée et refonte desdites installations d'urée
RU2675952C2 (ru) * 2014-01-10 2018-12-25 Эуротекника Меламине, Люксембург, Цвайгнидерлассунг ин Иттиген Трубчатый теплообменник и установка, в частности реактор для производства меламина, содержащая такой теплообменник
WO2017003711A1 (fr) * 2015-06-30 2017-01-05 Uop Llc Échangeurs de chaleur pour séparation de dioxyde de carbone à basse température à partir de gaz naturel
EP3178535A1 (fr) * 2015-12-11 2017-06-14 Casale SA Processus de préparation d'urée avec stripage à haute température
US10994319B2 (en) * 2016-07-01 2021-05-04 Sandvik Intellectual Property Ab Bimetallic tube and method for manufacturing a bimetallic tube
GEAP202115347A (en) 2017-10-27 2021-09-10 Stamicarbon High pressure carbamate condenser
PL3502293T3 (pl) 2017-12-22 2020-11-02 Saipem S.P.A. Zastosowania dupleksowych stali nierdzewnych
EP3513871A1 (fr) * 2018-01-17 2019-07-24 Yara International ASA Décomposeur de carbamate comprenant un répartiteur de flux
AU2020311257B2 (en) * 2019-07-05 2023-03-02 Stamicarbon B.V. Ferritic steel parts in urea plants

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041152A (en) * 1957-02-21 1962-06-26 Chemical Construction Corp Apparatus for high temperature and pressure chemical reactions
NL293154A (fr) * 1963-02-01 1900-01-01
FR1356620A (fr) * 1963-02-01 1964-03-27 Chemical Processes Of Ohio Procédé de synthèse de l'urée à partir d'ammoniac et de gaz carbonique et installation pour sa mise en oeuvre
US3515520A (en) * 1967-02-13 1970-06-02 Universal Oil Prod Co Reactor with internal protective sleeve for corrosive systems
AT290545B (de) * 1967-09-29 1971-06-11 Snam Progetti Verfahren zur Herstellung von Harnstoff mit niedrigem Carbamatgehalt
GB1292515A (en) * 1969-04-04 1972-10-11 Snam Progetti Process for producing urea
EG10651A (en) * 1970-04-02 1977-10-31 Snam Progetti Process for prevention reactors corrosion during production of urea
GB1327321A (en) * 1971-05-25 1973-08-22 Chemical Construction Corp Process for urea synthesis
DE2153437B2 (de) * 1971-10-27 1974-11-21 Metallgesellschaft Ag, 6000 Frankfurt Reaktor zur Herstellung von Methanol
US4210600A (en) * 1976-10-28 1980-07-01 Snamprogetti, S.P.A. Method for the preparation of urea with a high-yield reactor
US4291104A (en) * 1978-04-17 1981-09-22 Fansteel Inc. Brazed corrosion resistant lined equipment
IT1141030B (it) * 1980-08-29 1986-10-01 Snam Progetti Procedimento per la produzione di urea

Also Published As

Publication number Publication date
DE3514250A1 (de) 1985-11-07
IT1209532B (it) 1989-08-30
ES543108A0 (es) 1985-12-16
SU1731045A3 (ru) 1992-04-30
ZA852725B (en) 1985-11-27
SE8501859L (sv) 1985-10-21
NO851574L (no) 1985-10-21
US4899813A (en) 1990-02-13
GB2157687A (en) 1985-10-30
IN164410B (fr) 1989-03-11
GB2157687B (en) 1987-10-07
NO163559C (no) 1990-06-20
AR240914A2 (es) 1991-03-27
AU4124185A (en) 1985-10-24
CA1331993C (fr) 1994-09-13
JPS60233047A (ja) 1985-11-19
DE3514250C2 (fr) 1988-12-22
PT80322A (en) 1985-05-01
PT80322B (en) 1987-02-16
AU572284B2 (en) 1988-05-05
FR2563217A1 (fr) 1985-10-25
SE8501859D0 (sv) 1985-04-16
ES8603288A1 (es) 1985-12-16
DK175985D0 (da) 1985-04-18
NO163559B (no) 1990-03-12
IT8420635A0 (it) 1984-04-20
LU85857A1 (fr) 1985-12-16
NL8501151A (nl) 1985-11-18
AR240914A1 (es) 1991-03-27
GB8510103D0 (en) 1985-05-30
GR850954B (fr) 1985-11-25
MX160685A (es) 1990-04-09

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SNAMPROGETTI S.P.A.

Effective date: 19870430