LT2007043A - Carbamide production method and device - Google Patents

Carbamide production method and device

Info

Publication number
LT2007043A
LT2007043A LT2007043A LT2007043A LT2007043A LT 2007043 A LT2007043 A LT 2007043A LT 2007043 A LT2007043 A LT 2007043A LT 2007043 A LT2007043 A LT 2007043A LT 2007043 A LT2007043 A LT 2007043A
Authority
LT
Lithuania
Prior art keywords
distillation
heat exchanger
stage
carbamide
column
Prior art date
Application number
LT2007043A
Other languages
Lithuanian (lt)
Other versions
LT5476B (en
Inventor
Yury Andreevich SERGEEV
Rinat Venerovich Anderzhanov
Ivan Vladimirovich Gusev
Aleksei Vladimirovich Soldatov
Aleksandr Alekseevich Prokopyev
Nikolai Mikhailovich Kuznetsov
Igor Veniaminovich Esin
Original Assignee
Research & Design Institute Of Urea And Organic Synthesis Products, Otkrytoe Aktsionernoe Obschestvo (Oao Niic)
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 Research & Design Institute Of Urea And Organic Synthesis Products, Otkrytoe Aktsionernoe Obschestvo (Oao Niic) filed Critical Research & Design Institute Of Urea And Organic Synthesis Products, Otkrytoe Aktsionernoe Obschestvo (Oao Niic)
Publication of LT2007043A publication Critical patent/LT2007043A/en
Publication of LT5476B publication Critical patent/LT5476B/en

Links

Classifications

    • 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
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
    • B01D3/148—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step in combination with at least one evaporator
    • 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
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications
    • 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
    • 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
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

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

Abstract

The invention relates to a method for producing a carbamide from ammonium and carbon dioxide by forming in a synthesis area a carbamide melt flow which is processed in two distillation stages, wherein carbamide solutions and gas flows are separated and form carbon-ammonium salt solutions after condensation and absorption thereof. At the first distillation stage, the melt is supplied from a column to the first distillation area, wherein said melt is disintegrated in a film heat exchanger in thecarbon dioxide flow. A gas phase obtained at the first distillation stage is used for heat exchange at the second distillation stage. The inventive device comprises a first stage distillation column whose top section is connected to a recuperative heat exchanger in the second area of the second distillation stage, whereas the column lower section is connected to the film heat exchanger provided with the carbon dioxide input. The distillation column and the film heat exchanger of the first distillation stage ar
LT2007043A 2005-04-18 2007-07-19 Karbamido gamybos metodas ir irenginys LT5476B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2005111522/04A RU2280026C1 (en) 2005-04-18 2005-04-18 Method and installation for production of carbamide

Publications (2)

Publication Number Publication Date
LT2007043A true LT2007043A (en) 2007-11-26
LT5476B LT5476B (en) 2008-03-26

Family

ID=37028700

Family Applications (1)

Application Number Title Priority Date Filing Date
LT2007043A LT5476B (en) 2005-04-18 2007-07-19 Karbamido gamybos metodas ir irenginys

Country Status (5)

Country Link
EE (1) EE05451B1 (en)
LT (1) LT5476B (en)
RU (1) RU2280026C1 (en)
UA (1) UA85467C2 (en)
WO (1) WO2006112751A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199279A1 (en) * 2008-12-17 2010-06-23 Urea Casale S.A. Improvement to the high-pressure loop in a process for synthesis of urea
CN113996080B (en) * 2021-12-31 2022-05-06 山东海科新源材料科技股份有限公司 Chemical condenser and method for condensing and separating gas-phase product by using same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU142192A1 (en) * 1960-08-08 1960-11-30 А.Е. Богданов Device for the progressive periodic movement of piece goods, mainly large-sized building parts
NL127236C (en) 1964-05-29
RU2117002C1 (en) * 1997-05-06 1998-08-10 Арон Беркович Гендельман Method of carbamide synthesis

Also Published As

Publication number Publication date
UA85467C2 (en) 2009-01-26
RU2280026C1 (en) 2006-07-20
EE05451B1 (en) 2011-08-15
EE200700056A (en) 2008-02-15
LT5476B (en) 2008-03-26
WO2006112751A1 (en) 2006-10-26

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Legal Events

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MM9A Lapsed patents

Effective date: 20210320