ATE8866T1 - Verfahren zur herstellung von ammoniak und des uebereinstimmenden synthesegases. - Google Patents

Verfahren zur herstellung von ammoniak und des uebereinstimmenden synthesegases.

Info

Publication number
ATE8866T1
ATE8866T1 AT80401871T AT80401871T ATE8866T1 AT E8866 T1 ATE8866 T1 AT E8866T1 AT 80401871 T AT80401871 T AT 80401871T AT 80401871 T AT80401871 T AT 80401871T AT E8866 T1 ATE8866 T1 AT E8866T1
Authority
AT
Austria
Prior art keywords
ammonia
gas
subjecting
feedstock
reforming
Prior art date
Application number
AT80401871T
Other languages
German (de)
English (en)
Inventor
David Leon Banquy
Original Assignee
Foster Wheeler Energy Corporation
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 Foster Wheeler Energy Corporation filed Critical Foster Wheeler Energy Corporation
Application granted granted Critical
Publication of ATE8866T1 publication Critical patent/ATE8866T1/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
    • F25J3/0219—Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
    • C01B3/02—Production of hydrogen; Production of gaseous mixtures containing hydrogen
    • C01B3/025—Preparation or purification of gas mixtures for ammonia synthesis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0276—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of H2/N2 mixtures, i.e. of ammonia synthesis gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/74—Refluxing the column with at least a part of the partially condensed overhead gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/80—Processes or apparatus using separation by rectification using integrated mass and heat exchange, i.e. non-adiabatic rectification in a reflux exchanger or dephlegmator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/20—H2/N2 mixture, i.e. synthesis gas for or purge gas from ammonia synthesis
    • 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
    • Y02P20/10—Process efficiency
    • 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
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Industrial Gases (AREA)
  • Catalysts (AREA)
AT80401871T 1980-01-07 1980-12-26 Verfahren zur herstellung von ammoniak und des uebereinstimmenden synthesegases. ATE8866T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8000196A FR2473032A1 (fr) 1980-01-07 1980-01-07 Procede de production d'ammoniac et du gaz de synthese correspondant
EP80401871A EP0032096B1 (fr) 1980-01-07 1980-12-26 Procédé de production d'ammoniac et du gaz de synthèse correspondant

Publications (1)

Publication Number Publication Date
ATE8866T1 true ATE8866T1 (de) 1984-08-15

Family

ID=9237259

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80401871T ATE8866T1 (de) 1980-01-07 1980-12-26 Verfahren zur herstellung von ammoniak und des uebereinstimmenden synthesegases.

Country Status (8)

Country Link
US (1) US4296085A (https=)
EP (1) EP0032096B1 (https=)
JP (1) JPS6041004B2 (https=)
AT (1) ATE8866T1 (https=)
AU (1) AU537559B2 (https=)
CA (1) CA1152727A (https=)
DE (1) DE3068921D1 (https=)
FR (1) FR2473032A1 (https=)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093502B2 (en) * 1982-04-14 1988-11-17 Imperial Chemical Industries Plc Ammonia production process
US4613492A (en) * 1982-09-01 1986-09-23 Humphreys & Glasgow, Ltd. Production of synthesis gas
US4479925A (en) * 1982-09-13 1984-10-30 The M. W. Kellogg Company Preparation of ammonia synthesis gas
JPS59199501A (ja) * 1983-04-27 1984-11-12 Res Assoc Residual Oil Process<Rarop> 水素の製造法
US4822521A (en) * 1983-06-09 1989-04-18 Uop Integrated process and apparatus for the primary and secondary catalytic steam reforming of hydrocarbons
US4524056A (en) * 1983-07-05 1985-06-18 Foster Wheeler Energy Corporation Process for the production of ammonia
US4545976A (en) * 1983-11-10 1985-10-08 Exxon Research & Engineering Co. Hydrocarbon steam reforming using series steam superheaters
US4624841A (en) * 1984-01-23 1986-11-25 Toyo Engineering Corporation Process for refining an ammonia synthesis gas
US4755361A (en) * 1984-02-07 1988-07-05 Union Carbide Corporation Apparatus for ammonia synthesis gas production
US4592860A (en) * 1984-02-07 1986-06-03 Union Carbide Corporation Process and apparatus for ammonia synthesis gas production
DE3571797D1 (en) * 1984-03-02 1989-08-31 Ici Plc Process for producing ammonia synthesis gas
WO1986000286A1 (en) * 1984-06-30 1986-01-16 Stamicarbon B.V. (Licensing Subsidiary Of Dsm) Process for preparing ammonia
GB8420644D0 (en) * 1984-08-14 1984-09-19 Petrocarbon Dev Ltd Ammonia synthesis gas
US4572829A (en) * 1984-11-09 1986-02-25 Union Carbide Corporation Ammonia synthesis gas purification
GB2186870A (en) * 1986-02-26 1987-08-26 Foster Wheeler Energy Ltd Ammonia synthesis
GB8609099D0 (en) * 1986-04-15 1986-05-21 British Petroleum Co Plc Production of synthesis gas
US4728506A (en) * 1986-05-16 1988-03-01 Catalyst Services, Inc. Start-up method for ammonia plants
DK167864B1 (da) * 1990-02-02 1993-12-27 Topsoe Haldor As Fremgangsmaade og reaktorsystem til reforming af carbonhydrider under varmeveksling
US5736116A (en) * 1995-10-25 1998-04-07 The M. W. Kellogg Company Ammonia production with enriched air reforming and nitrogen injection into the synthesis loop
US5935544A (en) * 1996-06-06 1999-08-10 Brown & Root, Inc. Moderate excess nitrogen Braun Purifier™ process and method for retrofitting non-Braun Purifier™ ammonia plants
EP0849245A1 (en) * 1996-12-20 1998-06-24 Kvaerner Process Technology Limited Process and plant for the production of methanol
ES2164425T3 (es) * 1997-04-10 2002-02-16 Air Liquide Inyeccion de oxigeno y nitrogeno para aumentar la produccion de amoniaco.
US6214258B1 (en) * 1998-08-13 2001-04-10 Air Products And Chemicals, Inc. Feed gas pretreatment in synthesis gas production
DE60106306T2 (de) * 2000-02-10 2006-02-23 Haldor Topsoe A/S Verfahren und Vorrichtung zur Herstellung von Ammoniak
US6620399B1 (en) 2000-04-10 2003-09-16 Robert Rudolf Josef Jungerhans Purification of gases, in synthesis gas production process
EP1348919A4 (en) * 2000-08-29 2008-04-23 Kawajureinetsukougyo K K ABSORPTION CHILLER
US20060076275A1 (en) * 2002-07-12 2006-04-13 Smith Anthon L Process for the recovery of hydrocarbon fractions from hydrocarbonaceous solids
US6709573B2 (en) * 2002-07-12 2004-03-23 Anthon L. Smith Process for the recovery of hydrocarbon fractions from hydrocarbonaceous solids
US7090816B2 (en) * 2003-07-17 2006-08-15 Kellogg Brown & Root Llc Low-delta P purifier for nitrogen, methane, and argon removal from syngas
US7971559B2 (en) * 2005-02-28 2011-07-05 The Petroleum Oil & Gas Corporation of South Africa (Pty)Ltd Method for removing salt deposits in reformer waste heat boilers
US7377951B2 (en) * 2005-04-15 2008-05-27 Air Products And Chemicals, Inc. Process to utilize low-temperature waste heat for the preparation of synthesis gas
EP2022754A1 (en) * 2007-08-08 2009-02-11 Ammonia Casale S.A. Process for producing ammonia synthesis gas
EP2065337A1 (en) * 2007-11-27 2009-06-03 Ammonia Casale S.A. Process for producing ammonia synthesis gas
JP5424566B2 (ja) * 2008-03-14 2014-02-26 独立行政法人石油天然ガス・金属鉱物資源機構 天然ガスからの液状炭化水素製造プロセスにおける合成ガスの製造方法
EP2159192A1 (en) * 2008-08-28 2010-03-03 Ammonia Casale S.A. Process for the production of ammonia synthesis gas with improved cryogenic purification
EP2172417A1 (en) * 2008-10-02 2010-04-07 Ammonia Casale S.A. Process for the production of ammonia synthesis gas
DE102008056538A1 (de) * 2008-11-10 2010-05-12 Uhde Gmbh Prozessgaserzeugung mittels Wärmerückgewinnung aus Niedertemperaturabwärme
JP5766397B2 (ja) * 2009-09-16 2015-08-19 三菱重工業株式会社 アンモニア製造方法及び装置
WO2011150253A1 (en) * 2010-05-26 2011-12-01 Gtlpetrol Llc Producing ammonia using ultrapure, high pressure hydrogen
EP2404869A1 (en) * 2010-07-06 2012-01-11 Ammonia Casale S.A. Process for producing ammonia synthesis gas
US8889093B2 (en) * 2010-09-16 2014-11-18 Kellogg Brown & Root Llc High pressure cyrogenic process and system for producing ammonia products
EP2801550A1 (en) * 2013-05-10 2014-11-12 Ammonia Casale S.A. A process for producing ammonia synthesis gas with high temperature shift and low steam-to-carbon ratio
EP2818447A1 (en) * 2013-06-26 2014-12-31 Ammonia Casale S.A. A process for purification of a synthesis gas containing hydrogen and impurities
US9643856B2 (en) * 2013-08-07 2017-05-09 Kellogg Brown+Root LLC Methods and systems for making ammonia in a double ammonia converter system
EP2886513A1 (en) * 2013-12-20 2015-06-24 Casale Sa Process for producing ammonia synthesis gas
EP3037386A1 (en) * 2014-12-23 2016-06-29 Casale SA A plant and a process for ammonia production with cryogenic purification, and a related method of revamping
EP3124433B1 (de) * 2015-07-27 2021-09-01 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Verfahren zur kühlung von synthesegas
DE102016123661A1 (de) 2016-12-07 2018-06-07 Ask Chemicals Gmbh Alkalische Resolbinder mit verbesserter Fließfähigkeit
DE102017201681A1 (de) 2017-02-02 2018-08-02 Thyssenkrupp Ag Verfahren zur Behandlung eines Synthesegasstroms
CN106679243B (zh) * 2017-02-17 2022-05-20 查都(海南)科技有限公司 一种降低液氨消耗的制冷系统
DE102017011601A1 (de) * 2017-12-14 2019-06-19 Linde Aktiengesellschaft Ammoniaksynthese mit internem Kühlkreislauf
EP3623343A1 (en) * 2018-09-11 2020-03-18 Casale Sa Process for the synthesis of ammonia
CN114466831B (zh) * 2019-01-15 2023-12-19 沙特基础工业全球技术公司 可再生能源在甲醇合成中的用途
CN112499646B (zh) * 2020-11-19 2024-04-05 宁夏坤辉气化有限公司 一种串联式氨合成工艺
IT202200004073A1 (it) * 2022-03-04 2023-09-04 Nuovo Pignone Tecnologie Srl Unità di multi-compressione per la produzione di ammoniaca
WO2025042306A1 (ru) * 2023-08-23 2025-02-27 Публичное акционерное общество "НОВАТЭК" Способ получения низкоуглеродного аммиака из природного газа
WO2025048671A1 (ru) * 2023-08-30 2025-03-06 Публичное акционерное общество "НОВАТЭК" Способ получения низкоуглеродного аммиака из природного газа

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829113A (en) * 1953-10-14 1958-04-01 Kellogg M W Co Production of nitrogen and hydrogen for ammonia synthesis
US3278452A (en) * 1959-12-24 1966-10-11 Pullman Inc Production of hydrogen-containing gases
US3264066A (en) * 1962-05-01 1966-08-02 Pullman Inc Production of hydrogen
FR1409027A (fr) * 1963-09-09 1965-08-20 Chemical Construction Corproat Procédé de préparation simultanée de l'ammoniac et de l'urée
US3388074A (en) * 1963-12-26 1968-06-11 Catalysts & Chem Inc Two-stage steam reforming with rapid warm-up in first stage by means of a promoted catalyst
GB1156003A (en) * 1965-10-22 1969-06-25 Braun & Co C F Ammonia Synthesis Gas Purification Process and Apparatus.
US3442613A (en) * 1965-10-22 1969-05-06 Braun & Co C F Hydrocarbon reforming for production of a synthesis gas from which ammonia can be prepared
US3441393A (en) * 1966-01-19 1969-04-29 Pullman Inc Process for the production of hydrogen-rich gas
US3556751A (en) * 1968-04-05 1971-01-19 Texaco Inc Production of synthesis gas
FR2044617A2 (en) * 1969-11-28 1971-02-26 Cem Comp Electro Mec Reforming of hydrocarbons to obtain - ammonia synthesis gas
FR1604197A (en) * 1968-12-30 1971-07-26 Reforming of hydrocarbons to obtain - ammonia synthesis gas
DE1920001A1 (de) * 1969-04-19 1970-12-17 Metallgesellschaft Ag Verfahren zur Erzeugung eines Synthesegases fuer die Herstellung von Ammoniak
DE2732587A1 (de) * 1976-09-22 1978-03-23 Bach Jean Francois Polypeptid mit thymischer wirksamkeit
US4148866A (en) * 1976-10-04 1979-04-10 Pullman Incorporated Low energy ammonia synthesis process
US4079017A (en) * 1976-11-19 1978-03-14 Pullman Incorporated Parallel steam reformers to provide low energy process

Also Published As

Publication number Publication date
FR2473032B1 (https=) 1985-03-08
CA1152727A (en) 1983-08-30
US4296085A (en) 1981-10-20
EP0032096A3 (en) 1981-07-22
AU537559B2 (en) 1984-06-28
JPS5734021A (en) 1982-02-24
EP0032096A2 (fr) 1981-07-15
EP0032096B1 (fr) 1984-08-08
FR2473032A1 (fr) 1981-07-10
JPS6041004B2 (ja) 1985-09-13
DE3068921D1 (en) 1984-09-13
AU6548880A (en) 1981-07-16

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