FR2382403A1 - - Google Patents

Info

Publication number
FR2382403A1
FR2382403A1 FR7805902A FR7805902A FR2382403A1 FR 2382403 A1 FR2382403 A1 FR 2382403A1 FR 7805902 A FR7805902 A FR 7805902A FR 7805902 A FR7805902 A FR 7805902A FR 2382403 A1 FR2382403 A1 FR 2382403A1
Authority
FR
France
Prior art keywords
ammonia
urea
liquid film
combined process
absorption
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
FR7805902A
Other languages
French (fr)
Other versions
FR2382403B1 (en
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 FR2382403A1 publication Critical patent/FR2382403A1/fr
Application granted granted Critical
Publication of FR2382403B1 publication Critical patent/FR2382403B1/fr
Expired 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
    • C07C273/10—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
    • 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
    • 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 combiné pour la fabrication d'urée et d'ammoniac. Dans un procédé intégré ou combiné pour la fabrication d'ammoniac ou d'urée, le perfectionnement consiste en ce que l'absorption du CO2 provenant du gaz brut 2 envoyé au réacteur de synthèse de l'ammoniac est effectuée avec un appareil d'absorption divisé en deux sections 1 et 6, l'une 6 étant du type à plateaux et l'autre 1 étant du type à film liquide. La fraction de CO2 est éliminée dans la section 1 à film liquide, le reste étant éliminé dans la section 6 à plateaux adiabatique. Ce procédé diminue les surfaces d'échange nécessaires mais également permet de travailler dans des conditions de plus grande sécurité.Combined process for the manufacture of urea and ammonia. In an integrated or combined process for the production of ammonia or urea, the improvement consists in that the absorption of CO2 from the raw gas 2 sent to the ammonia synthesis reactor is carried out with an absorption device divided into two sections 1 and 6, one 6 being of the tray type and the other 1 being of the liquid film type. The CO2 fraction is removed in liquid film section 1, the remainder being removed in adiabatic tray section 6. This process reduces the necessary exchange surfaces but also makes it possible to work in conditions of greater safety.

FR7805902A 1977-03-03 1978-03-01 Expired FR2382403B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT20850/77A IT1115610B (en) 1977-03-03 1977-03-03 INTEGRATED UREA-AMMONIA PROCEDURE

Publications (2)

Publication Number Publication Date
FR2382403A1 true FR2382403A1 (en) 1978-09-29
FR2382403B1 FR2382403B1 (en) 1981-10-23

Family

ID=11172995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805902A Expired FR2382403B1 (en) 1977-03-03 1978-03-01

Country Status (21)

Country Link
JP (1) JPS53108926A (en)
AR (1) AR221480A1 (en)
AU (1) AU515786B2 (en)
BE (1) BE864554A (en)
BR (1) BR7801343A (en)
CA (1) CA1118185A (en)
CH (1) CH639353A5 (en)
CS (1) CS219889B2 (en)
DD (1) DD134087A5 (en)
DE (1) DE2808831C3 (en)
DK (1) DK92978A (en)
ES (1) ES468020A1 (en)
FR (1) FR2382403B1 (en)
GB (1) GB1586624A (en)
IE (1) IE46473B1 (en)
IT (1) IT1115610B (en)
LU (1) LU79147A1 (en)
NL (1) NL7802158A (en)
PL (1) PL110971B1 (en)
SE (1) SE7802450L (en)
TR (1) TR19994A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6025979B2 (en) * 2012-07-13 2016-11-16 シーアストーン リミテッド ライアビリティ カンパニー Methods and systems for forming ammonia and solid carbon products
PL413125A1 (en) 2015-07-14 2017-01-16 Vts Spółka Z Ograniczoną Odpowiedzialnością Hinge
US10315986B1 (en) * 2018-04-06 2019-06-11 Solenis Technologies, L.P. Systems and methods for forming a solution of ammonium carbamate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1034674B (en) * 1975-03-28 1979-10-10 Snam Progetti FLEXIBLE INTERGRATED PROCESS FOR THE PRODUCTION OF EDUREA AMMONIA

Also Published As

Publication number Publication date
FR2382403B1 (en) 1981-10-23
AU3338878A (en) 1979-08-23
JPS6324986B2 (en) 1988-05-23
IE46473B1 (en) 1983-06-29
DE2808831B2 (en) 1980-08-14
LU79147A1 (en) 1978-06-27
BR7801343A (en) 1978-12-12
CS219889B2 (en) 1983-03-25
DE2808831A1 (en) 1978-09-07
NL7802158A (en) 1978-09-05
GB1586624A (en) 1981-03-25
PL110971B1 (en) 1980-08-30
DD134087A5 (en) 1979-02-07
AR221480A1 (en) 1981-02-13
JPS53108926A (en) 1978-09-22
DE2808831C3 (en) 1981-04-16
DK92978A (en) 1978-09-04
IE780448L (en) 1978-09-03
TR19994A (en) 1980-07-01
CH639353A5 (en) 1983-11-15
SE7802450L (en) 1978-09-04
AU515786B2 (en) 1981-04-30
IT1115610B (en) 1986-02-03
BE864554A (en) 1978-09-04
PL205024A1 (en) 1979-03-26
ES468020A1 (en) 1978-12-01
CA1118185A (en) 1982-02-16

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Legal Events

Date Code Title Description
ST Notification of lapse