KR830007531A - Inert Gas Separation - Google Patents

Inert Gas Separation Download PDF

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Publication number
KR830007531A
KR830007531A KR1019810004392A KR810004392A KR830007531A KR 830007531 A KR830007531 A KR 830007531A KR 1019810004392 A KR1019810004392 A KR 1019810004392A KR 810004392 A KR810004392 A KR 810004392A KR 830007531 A KR830007531 A KR 830007531A
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KR
South Korea
Prior art keywords
urea synthesis
inert gas
urea
temperature
liquid
Prior art date
Application number
KR1019810004392A
Other languages
Korean (ko)
Other versions
KR870000771B1 (en
Inventor
시게루 이노우에
히로시 오노
히데쓰구 후지이
하루유끼 모리가와
Original Assignee
사꾸라이 마사오
도오요 엔지니어링 가부시끼 가이샤
요시오까 시로
미쓰이 도오아쓰 가가꾸 가부시끼 가이샤
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.)
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Publication date
Application filed by 사꾸라이 마사오, 도오요 엔지니어링 가부시끼 가이샤, 요시오까 시로, 미쓰이 도오아쓰 가가꾸 가부시끼 가이샤 filed Critical 사꾸라이 마사오
Publication of KR830007531A publication Critical patent/KR830007531A/en
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Publication of KR870000771B1 publication Critical patent/KR870000771B1/en

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    • 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
    • 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

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

Abstract

내용 없음No content

Description

불활성 가스의 분리법Inert Gas Separation

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

도면은 본 발명의 일실시를 나타내주는 작업 계통도.The drawings show a working diagram illustrating one embodiment of the present invention.

Claims (4)

암모니아를 이산화탄소와 요소합성압력 및 온도의 요소 합성내에서 반응시켜 얻어진 요소 합성액으로부터, 이에 불용의 불활성 가스를 요소 합성압력에서 분리함에 있어, 평형량에 근사한 양으로 생산이되고 또한 최고 온도에 달한 요소 함유 요소 합성액을, 요소 합성에 공급되는 암모니아와, 요소 합성압력과 동일한 압력에서 불활성 가스를 분리하기 전에 간접적인 열교환을 시켜서, 그 요소 합성액의 온도를 5℃-30℃로 내림을 특징으로 하는 개량된 불활성 가스의 분리법.From the urea synthesis liquid obtained by reacting ammonia in urea synthesis of carbon dioxide and urea synthesis pressure and temperature, insoluble gas is separated at urea synthesis pressure, produced in an amount close to the equilibrium amount and reaching the maximum temperature. The urea-containing urea synthesis liquid is indirectly heat exchanged before separating the ammonia supplied for urea synthesis and the inert gas at the same pressure as the urea synthesis pressure, thereby lowering the temperature of the urea synthesis liquid to 5 ° C.-30 ° C. Improved separation method of inert gas. 제1항에 있어서, 암모니아를, 상기 요소 합성액과 열교환 시키기전에, 150℃보다 높지 않은 온도로 예열시킴을 특징으로 하는 방법.The method of claim 1 wherein the ammonia is preheated to a temperature no higher than 150 ° C. prior to heat exchange with the urea synthesis liquid. 제1항에 있어서, 상기 최고 온도는 170°-200℃ 임을 특징으로 하는 방법.The method of claim 1 wherein the maximum temperature is 170 ° -200 ° C. 제1항에 있어서, 냉각이 되고 불활성 가스가 분리된 요소 합성액을, 요소 합성의 외부로 방출되기 전에, 요소 합성내에서 요소 합성액과 열교환 시킴을 특징으로 하는 방법.The method according to claim 1, wherein the urea synthesis liquid that is cooled and the inert gas is separated is heat-exchanged with the urea synthesis liquid in the urea synthesis before being discharged out of the urea synthesis. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019810004392A 1980-11-15 1981-11-14 Process for separating inert gases KR870000771B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP55160112A JPS5785356A (en) 1980-11-15 1980-11-15 Separating method of inert gas
JP160112/80 1980-11-15

Publications (2)

Publication Number Publication Date
KR830007531A true KR830007531A (en) 1983-10-21
KR870000771B1 KR870000771B1 (en) 1987-04-15

Family

ID=15708110

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810004392A KR870000771B1 (en) 1980-11-15 1981-11-14 Process for separating inert gases

Country Status (4)

Country Link
JP (1) JPS5785356A (en)
KR (1) KR870000771B1 (en)
BR (1) BR8107389A (en)
IN (1) IN153675B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790015A (en) * 1971-10-19 1973-04-12 Mavrovic Ivo UREA SYNTHESIS WITH IMPROVED CONVERSION AND HEAT RECOVERY

Also Published As

Publication number Publication date
IN153675B (en) 1984-08-04
BR8107389A (en) 1982-08-10
KR870000771B1 (en) 1987-04-15
JPS5785356A (en) 1982-05-28

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