NO962854L - Fremgangsmåte og anordning for gjenvinning av kondenserbare stoffer i damp fra en urea-vakuumfordamper - Google Patents

Fremgangsmåte og anordning for gjenvinning av kondenserbare stoffer i damp fra en urea-vakuumfordamper

Info

Publication number
NO962854L
NO962854L NO962854A NO962854A NO962854L NO 962854 L NO962854 L NO 962854L NO 962854 A NO962854 A NO 962854A NO 962854 A NO962854 A NO 962854A NO 962854 L NO962854 L NO 962854L
Authority
NO
Norway
Prior art keywords
urea
steam
improved
vacuum evaporator
condensable substances
Prior art date
Application number
NO962854A
Other languages
English (en)
Other versions
NO962854D0 (no
Inventor
Vishnu Deo Singh
Richard Bruce Strait
Thomas Anthony Czuppon
Original Assignee
Kellogg M W Co
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 Kellogg M W Co filed Critical Kellogg M W Co
Publication of NO962854D0 publication Critical patent/NO962854D0/no
Publication of NO962854L publication Critical patent/NO962854L/no

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
    • C07C273/14—Separation; Purification; Stabilisation; Use of additives
    • C07C273/16—Separation; Purification
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S159/00—Concentrating evaporators
    • Y10S159/16—Vacuum
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/16—Combination

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

En forbedret urea-gjenvinningsprosess beskrives. I den :forbedrete prosess erstattes flere vakuumklassifiserte over- 'flatekondensatorer som anvendes for kondensering av vanndamp 'som utvikles under urea-vakuutnfordampings-konsentrasjon, av en direkte-kontakt kjøle-/absorberingsenhet for å oppnå vesentli- ge kapital- og utstyrskostnadsbesparelser. Forbedret varmeut- vekslings-effektivitet ved foreliggende prosess minsker i vesentlig grad kjølevann-forbruk sammenlignet med overflate- kondensatorer .
NO962854A 1995-07-07 1996-07-05 Fremgangsmåte og anordning for gjenvinning av kondenserbare stoffer i damp fra en urea-vakuumfordamper NO962854L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/499,510 US5744009A (en) 1995-07-07 1995-07-07 Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator

Publications (2)

Publication Number Publication Date
NO962854D0 NO962854D0 (no) 1996-07-05
NO962854L true NO962854L (no) 1997-01-08

Family

ID=23985542

Family Applications (1)

Application Number Title Priority Date Filing Date
NO962854A NO962854L (no) 1995-07-07 1996-07-05 Fremgangsmåte og anordning for gjenvinning av kondenserbare stoffer i damp fra en urea-vakuumfordamper

Country Status (10)

Country Link
US (1) US5744009A (no)
EP (1) EP0752416B1 (no)
JP (1) JPH0920747A (no)
KR (1) KR100407370B1 (no)
CA (1) CA2174016C (no)
DE (1) DE69606672T2 (no)
ES (1) ES2141995T3 (no)
GR (1) GR3033336T3 (no)
MX (1) MX9602588A (no)
NO (1) NO962854L (no)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
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JP4112056B2 (ja) * 1997-12-18 2008-07-02 東洋エンジニアリング株式会社 改良された尿素の合成方法および装置
FR2788994B1 (fr) * 1999-01-28 2001-04-20 Sirven Procede et installation pour l'epuration chimique de la vapeur dans un deshydrateur a compression mecanique de la vapeur
SE527868C8 (sv) * 2004-11-17 2006-09-26 Alfa Laval Corp Ab Värmeväxlaranläggning för indunstning
US8152988B2 (en) * 2007-08-31 2012-04-10 Energy & Enviromental Research Center Foundation Electrochemical process for the preparation of nitrogen fertilizers
US9005422B2 (en) * 2007-08-31 2015-04-14 Energy & Environmental Research Center Foundation Electrochemical process for the preparation of nitrogen fertilizers
US7687041B2 (en) * 2008-02-27 2010-03-30 Kellogg Brown & Root Llc Apparatus and methods for urea production
TW201005813A (en) 2008-05-15 2010-02-01 Du Pont Process for forming an electroactive layer
EP2153880A1 (en) * 2008-07-31 2010-02-17 Urea Casale S.A. Process and plant for the production of a urea solution for use in SCR process for reduction of Nox
TW201039382A (en) 2009-03-06 2010-11-01 Du Pont Process for forming an electroactive layer
JP2012519950A (ja) * 2009-03-09 2012-08-30 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 電気活性層の形成方法
EA027106B1 (ru) * 2011-10-14 2017-06-30 Стамикарбон Б.В. Способ заключительной обработки мочевины
CN103214009B (zh) * 2013-03-22 2014-12-03 中石化宁波工程有限公司 一种合成氨脱碳工艺
EP3452212B1 (en) * 2016-05-03 2020-02-12 Stamicarbon B.V. Urea production with controlled biuret
JP7105863B2 (ja) * 2017-07-14 2022-07-25 スタミカーボン・ベー・フェー 尿素仕上げ及びオフガス処理プラント並びにプロセス
IT201700121364A1 (it) * 2017-10-25 2019-04-25 Saipem Spa Apparato e metodo per il trattamento di vapori di processo provenienti da una sezione di concentrazione sottovuoto di un impianto urea
EP4085049B1 (en) 2019-12-30 2024-01-03 Stamicarbon B.V. Ammonia removal from urea finishing
WO2021137701A1 (en) * 2019-12-30 2021-07-08 Stamicarbon B.V. Urea production with multiple evaporators
CA3166783C (en) * 2019-12-30 2023-08-01 Stamicarbon B.V. Urea plant with chilled condensation section
CN113101682B (zh) * 2021-05-28 2023-03-24 新疆心连心能源化工有限公司 减少蒸发掉缩合物稳定尿素生产的装置及处理方法
CN113562743B (zh) * 2021-08-19 2022-10-18 上海大学(浙江·嘉兴)新兴产业研究院 一种氨气的浓缩回收装置及钛酸钡的生产设备和生产方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682499A (en) * 1950-03-20 1954-06-29 Kraft Foods Co High vacuum distillation and drying system
US3155722A (en) * 1960-01-29 1964-11-03 Chemical Construction Corp Recovery of residual ammonia and carbon dioxide in the synthesis of urea
US3711544A (en) * 1970-04-20 1973-01-16 Lummus Co Heat recovery in urea synthesis
JPS555977B2 (no) * 1974-05-14 1980-02-12
US3985523A (en) * 1974-09-30 1976-10-12 Foster Wheeler Energy Corporation Pollution control process for fertilizer plant
US4256662A (en) * 1980-01-18 1981-03-17 Gorlovsky David M Process for producing urea
US4311856A (en) * 1980-12-31 1982-01-19 Toyo Engineering Corp. Process for synthesizing urea
CN1048979C (zh) * 1990-06-25 2000-02-02 乌里阿·卡萨勒有限公司 用于尿素工厂的真空分离器

Also Published As

Publication number Publication date
KR100407370B1 (ko) 2004-04-09
DE69606672D1 (de) 2000-03-23
JPH0920747A (ja) 1997-01-21
US5744009A (en) 1998-04-28
CA2174016C (en) 2005-11-22
AU5211996A (en) 1997-01-23
ES2141995T3 (es) 2000-04-01
EP0752416B1 (en) 2000-02-16
DE69606672T2 (de) 2000-11-23
AU702000B2 (en) 1999-02-11
EP0752416A1 (en) 1997-01-08
CA2174016A1 (en) 1997-01-08
NO962854D0 (no) 1996-07-05
KR970005335A (ko) 1997-02-19
MX9602588A (es) 1997-03-29
GR3033336T3 (en) 2000-09-29

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