IN2014DN05948A - - Google Patents

Info

Publication number
IN2014DN05948A
IN2014DN05948A IN5948DEN2014A IN2014DN05948A IN 2014DN05948 A IN2014DN05948 A IN 2014DN05948A IN 5948DEN2014 A IN5948DEN2014 A IN 5948DEN2014A IN 2014DN05948 A IN2014DN05948 A IN 2014DN05948A
Authority
IN
India
Prior art keywords
stream
head
carbon dioxide
fed
reactor
Prior art date
Application number
Inventor
Lino Carlessi
Alessandro Gianazza
Original Assignee
Saipem 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=45571700&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IN2014DN05948(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Saipem Spa filed Critical Saipem Spa
Publication of IN2014DN05948A publication Critical patent/IN2014DN05948A/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
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
    • 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
    • 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
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

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

Abstract

A process for the direct synthesis of urea from ammonia and carbon dioxide with increased corrosion resistance comprising in the high pressure synthesis section a reaction step in a vertical reactor (R) fed with at least one stream of fresh carbon dioxide containing a passivating agent and a decomposition stripping step of the non converted reagents wherein the gas liquid mixture collected at the head of the reactor is separated into a gaseous stream and a liquid stream fed to the tail and head of the stripper respectively.
IN5948DEN2014 2012-01-09 2013-01-09 IN2014DN05948A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000013A ITMI20120013A1 (en) 2012-01-09 2012-01-09 PROCEDURE FOR THE SYNTHESIS OF UREA INCLUDING A STRIPPER FUND OF PASSIVATION
PCT/EP2013/050247 WO2013104638A1 (en) 2012-01-09 2013-01-09 Process for the synthesis of urea comprising a passivation stream at the stripper bottom

Publications (1)

Publication Number Publication Date
IN2014DN05948A true IN2014DN05948A (en) 2015-06-26

Family

ID=45571700

Family Applications (1)

Application Number Title Priority Date Filing Date
IN5948DEN2014 IN2014DN05948A (en) 2012-01-09 2013-01-09

Country Status (12)

Country Link
US (1) US9199926B2 (en)
EP (1) EP2802559B1 (en)
CN (1) CN104159888B (en)
AR (1) AR089688A1 (en)
CA (1) CA2860715C (en)
IN (1) IN2014DN05948A (en)
IT (1) ITMI20120013A1 (en)
MX (1) MX368955B (en)
MY (1) MY162976A (en)
RU (1) RU2617407C2 (en)
UA (1) UA112214C2 (en)
WO (1) WO2013104638A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1395383B1 (en) * 2009-09-09 2012-09-14 Saipem Spa METHOD OF SEPARATION OF AMMONIACA AND CARBON DIOXIDE FROM AQUEOUS SOLUTIONS
EP2801396A1 (en) * 2013-05-10 2014-11-12 Casale Sa Use of duplex stainless steel in an ammonia-stripping of urea plants
EP3178535A1 (en) * 2015-12-11 2017-06-14 Casale SA A urea process with high-temperature stripping
US10376859B2 (en) 2016-03-30 2019-08-13 Stamicarbon B.V. Urea production with bi-pressurized synthesis
EP3656759A1 (en) 2018-11-22 2020-05-27 Casale Sa A process for the synthesis of urea
JP7277672B2 (en) 2019-12-30 2023-05-19 スタミカーボン・ベー・フェー Ammonia removal from urea finish
CA3186903A1 (en) 2020-06-23 2021-12-30 Stamicarbon B.V. Thermal stripping urea plant and process
JP2023108791A (en) * 2022-01-26 2023-08-07 東洋エンジニアリング株式会社 Urea synthesis method
CN120693319A (en) * 2023-02-16 2025-09-23 俄罗斯尿素研究与设计股份公司(Niik股份公司) Method and apparatus for producing urea

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE527914A (en) 1953-04-15
GR33978B (en) 1966-07-27 1968-02-29 Snam Progetti S.P.A. METHOD FOR RECEIVING LOW URINE CONTENT IN DIURIAN.
AT290545B (en) 1967-09-29 1971-06-11 Snam Progetti Process for the production of low carbamate urea
US4092358A (en) 1968-09-03 1978-05-30 Snamprogetti S.P.A. Process for the production of urea having a low carbamate content
US3876696A (en) 1968-09-03 1975-04-08 Snam Progetti Process for the production of urea having a low carbamate content
GB1292515A (en) 1969-04-04 1972-10-11 Snam Progetti Process for producing urea
US3984469A (en) 1969-10-16 1976-10-05 Snam Progetti S.P.A. Process for the production of urea
US4137262A (en) 1969-10-16 1979-01-30 Snam Progetti S.P.A. Process for the production of urea
NL164328C (en) 1970-04-02 1980-12-15 Stamicarbon PROCESS FOR INCREASING RESISTANCE TO CORROSION OF AUSTENITIC CHROME-NICKEL SAMPLES, AND METHOD FOR PREPARING UREA IN APPARATUS THEREFORE INCREASED IN RESISTANCE TO CORROSION.
EG10651A (en) * 1970-04-02 1977-10-31 Snam Progetti Process for prevention reactors corrosion during production of urea
IT1068268B (en) 1976-09-09 1985-03-21 Snam Progetti PROCEDURE FOR THE PRODUCTION OF UREA AND PURIFICATION OF WATERS
BG35038A3 (en) 1977-05-05 1984-01-16 Montedison Spa Method and installation for synthesis of urea
IT1141030B (en) 1980-08-29 1986-10-01 Snam Progetti PROCEDURE FOR THE PRODUCTION OF UREA
JPS5750954A (en) 1980-09-12 1982-03-25 Mitsui Toatsu Chem Inc Synthesis of urea
NL8502227A (en) 1985-08-12 1987-03-02 Unie Van Kunstmestfab Bv METHOD FOR THE PREPARATION OF UREA.
EP0306614B1 (en) * 1987-05-15 1992-09-23 Ammonia Casale S.A. Improvements of processes and plants for the production of urea
IT1251524B (en) 1991-03-18 1995-05-16 Vincenzo Lagana METHOD FOR THE PASSIVATION OF METAL SURFACES AFFECTED BY CONDITIONS AND CORROSION PROMOTING AGENTS
IT1245396B (en) * 1991-03-22 1994-09-20 Snam Progetti PROCEDURE FOR THE PRODUCTION OF HIGH ENERGY EFFICIENCY UREA
US6150555A (en) * 1992-05-08 2000-11-21 Urea Casale, S.A. Process for urea production
IT1274362B (en) * 1995-02-16 1997-07-17 Snam Progetti HIGH YIELD PROCEDURE FOR THE SYNTHESIS OF UREA
US5597454A (en) * 1995-04-06 1997-01-28 Lee; Jing M. Process for producing urea
IT1290423B1 (en) 1996-10-17 1998-12-03 Eurotecnica Contractors And En PROCEDURE FOR THE SYNTHESIS OF UREA FROM CARBON DIOXIDE AND AMMONIA
CN1137882C (en) * 2001-03-23 2004-02-11 中国寰球工程公司 Full-circulating process for preparing urea
CN1194963C (en) 2002-06-21 2005-03-30 中国寰球工程公司 Water solution all-circulation aquadrate high pressure system energy-saving and production-increasing process
ITMI20071029A1 (en) * 2007-05-22 2008-11-23 Snam Progetti IMPROVED PROCEDURE FOR THE SYNTHESIS OF UREA
ITMI20110804A1 (en) * 2011-05-10 2012-11-11 Saipem Spa "HIGH YIELD PROCESS FOR THE UREA SYNTHESIS"

Also Published As

Publication number Publication date
CA2860715C (en) 2020-04-07
CN104159888A (en) 2014-11-19
EP2802559A1 (en) 2014-11-19
RU2014132872A (en) 2016-02-27
US9199926B2 (en) 2015-12-01
RU2617407C2 (en) 2017-04-25
US20150025273A1 (en) 2015-01-22
ITMI20120013A1 (en) 2013-07-10
WO2013104638A1 (en) 2013-07-18
CA2860715A1 (en) 2013-07-18
CN104159888B (en) 2017-03-22
MX368955B (en) 2019-10-23
MX2014008371A (en) 2015-05-15
AR089688A1 (en) 2014-09-10
MY162976A (en) 2017-07-31
UA112214C2 (en) 2016-08-10
EP2802559B1 (en) 2016-03-30

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