GB1114407A - Separating ammonia from the recycle gas in the synthesis of ammonia - Google Patents

Separating ammonia from the recycle gas in the synthesis of ammonia

Info

Publication number
GB1114407A
GB1114407A GB35752/65A GB3575265A GB1114407A GB 1114407 A GB1114407 A GB 1114407A GB 35752/65 A GB35752/65 A GB 35752/65A GB 3575265 A GB3575265 A GB 3575265A GB 1114407 A GB1114407 A GB 1114407A
Authority
GB
United Kingdom
Prior art keywords
recycle gas
gas
ammonia
synthesis
residual
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.)
Expired
Application number
GB35752/65A
Inventor
Walter Koelsch
Guenther Schulze
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1114407A publication Critical patent/GB1114407A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01C1/0476—Purge gas treatment, e.g. for removal of inert gases or recovery of H2
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/12—Separation of ammonia from gases and vapours
    • 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

In a process for separating NH3 from recycle gas in the synthesis of NH3, part of the recycle gas is withdrawn as residual gas, which after being dried and freed from NH3, is expanded in at least one stage with the performance of external work, and after the cooling which is thus effected is brought into heat exchange with at least a portion of precooled recycle gas, an amount of NH3 thereby being separated in liquid phase from the recycle gas. The expanded residual gas may also be brought into heat exchange with the residual gas which is still under the synthesis pressure so that this is cooled to not lower than 0 DEG C., preferably to 2 DEG C., immediately prior to being dried. The residual recycle gas or the whole of the recycle gas prior to the separation of NH3 may be cooled partly with the whole of the NH3-free recycle gas, partly with the whole of the liquid NH3 separated and also in a vaporization cooler, which step may precede or follow the heat exchange with the expanded residual gas.
GB35752/65A 1964-08-22 1965-08-20 Separating ammonia from the recycle gas in the synthesis of ammonia Expired GB1114407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB78225A DE1230407B (en) 1964-08-22 1964-08-22 Process for separating ammonia from the circulating gas of the ammonia synthesis

Publications (1)

Publication Number Publication Date
GB1114407A true GB1114407A (en) 1968-05-22

Family

ID=6979778

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35752/65A Expired GB1114407A (en) 1964-08-22 1965-08-20 Separating ammonia from the recycle gas in the synthesis of ammonia

Country Status (4)

Country Link
BE (1) BE668578A (en)
DE (1) DE1230407B (en)
GB (1) GB1114407A (en)
NL (1) NL6510940A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255406A (en) 1978-10-10 1981-03-10 Petrocarbon Developments Limited Treatment of ammonia synthesis purge gas
US4312851A (en) 1978-11-17 1982-01-26 Isalski Wieslaw H Treatment of ammonia synthesis purge gas
EP0160412A2 (en) * 1984-04-25 1985-11-06 Imperial Chemical Industries Plc Ammonia synthesis
CN106731535A (en) * 2016-12-23 2017-05-31 江苏丰东热技术股份有限公司 A kind of ammonia drying chamber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255406A (en) 1978-10-10 1981-03-10 Petrocarbon Developments Limited Treatment of ammonia synthesis purge gas
US4312851A (en) 1978-11-17 1982-01-26 Isalski Wieslaw H Treatment of ammonia synthesis purge gas
EP0160412A2 (en) * 1984-04-25 1985-11-06 Imperial Chemical Industries Plc Ammonia synthesis
EP0160412A3 (en) * 1984-04-25 1988-12-28 Imperial Chemical Industries Plc Ammonia synthesis
CN106731535A (en) * 2016-12-23 2017-05-31 江苏丰东热技术股份有限公司 A kind of ammonia drying chamber

Also Published As

Publication number Publication date
NL6510940A (en) 1966-02-23
BE668578A (en) 1966-02-21
DE1230407B (en) 1966-12-15

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