ZA887027B - Ammonia synthesis gas - Google Patents

Ammonia synthesis gas

Info

Publication number
ZA887027B
ZA887027B ZA887027A ZA887027A ZA887027B ZA 887027 B ZA887027 B ZA 887027B ZA 887027 A ZA887027 A ZA 887027A ZA 887027 A ZA887027 A ZA 887027A ZA 887027 B ZA887027 B ZA 887027B
Authority
ZA
South Africa
Prior art keywords
synthesis gas
ammonia synthesis
ammonia
gas
synthesis
Prior art date
Application number
ZA887027A
Other languages
English (en)
Inventor
Alwyn Pinto
Pinto Alwyn
Original Assignee
Ici Plc
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 Ici Plc filed Critical Ici Plc
Publication of ZA887027B publication Critical patent/ZA887027B/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/48Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents followed by reaction of water vapour with carbon monoxide
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/025Preparation or purification of gas mixtures for ammonia synthesis
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02Processes for making hydrogen or synthesis gas
    • C01B2203/0205Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0233Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02Processes for making hydrogen or synthesis gas
    • C01B2203/0205Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0244Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being an autothermal reforming step, e.g. secondary reforming processes
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02Processes for making hydrogen or synthesis gas
    • C01B2203/0283Processes for making hydrogen or synthesis gas containing a CO-shift step, i.e. a water gas shift step
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02Processes for making hydrogen or synthesis gas
    • C01B2203/0283Processes for making hydrogen or synthesis gas containing a CO-shift step, i.e. a water gas shift step
    • C01B2203/0288Processes for making hydrogen or synthesis gas containing a CO-shift step, i.e. a water gas shift step containing two CO-shift steps
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0415Purification by absorption in liquids
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/042Purification by adsorption on solids
    • C01B2203/043Regenerative adsorption process in two or more beds, one for adsorption, the other for regeneration
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0435Catalytic purification
    • C01B2203/0445Selective methanation
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/046Purification by cryogenic separation
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465Composition of the impurity
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465Composition of the impurity
    • C01B2203/047Composition of the impurity the impurity being carbon monoxide
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465Composition of the impurity
    • C01B2203/0475Composition of the impurity the impurity being carbon dioxide
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465Composition of the impurity
    • C01B2203/0495Composition of the impurity the impurity being water
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/06Integration with other chemical processes
    • C01B2203/068Ammonia synthesis
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08Methods of heating or cooling
    • C01B2203/0805Methods of heating the process for making hydrogen or synthesis gas
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08Methods of heating or cooling
    • C01B2203/0805Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0838Methods of heating the process for making hydrogen or synthesis gas by heat exchange with exothermic reactions, other than by combustion of fuel
    • C01B2203/0844Methods of heating the process for making hydrogen or synthesis gas by heat exchange with exothermic reactions, other than by combustion of fuel the non-combustive exothermic reaction being another reforming reaction as defined in groups C01B2203/02 - C01B2203/0294
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041Composition of the catalyst
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041Composition of the catalyst
    • C01B2203/1047Group VIII metal catalysts
    • C01B2203/1052Nickel or cobalt catalysts
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041Composition of the catalyst
    • C01B2203/1082Composition of support materials
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205Composition of the feed
    • C01B2203/1211Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1235Hydrocarbons
    • C01B2203/1241Natural gas or methane
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205Composition of the feed
    • C01B2203/1211Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1235Hydrocarbons
    • C01B2203/1247Higher hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1258Pre-treatment of the feed
    • C01B2203/1264Catalytic pre-treatment of the feed
    • C01B2203/127Catalytic desulfurisation
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/14Details of the flowsheet
    • C01B2203/142At least two reforming, decomposition or partial oxidation steps in series
    • C01B2203/143Three or more reforming, decomposition or partial oxidation steps in series
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/14Details of the flowsheet
    • C01B2203/146At least two purification steps in series
    • C01B2203/147Three or more purification steps in series
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/16Controlling the process
    • C01B2203/1685Control based on demand of downstream process
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/16Controlling the process
    • C01B2203/169Controlling the feed
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/16Controlling the process
    • C01B2203/1695Adjusting the feed of the combustion
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/80Aspect of integrated processes for the production of hydrogen or synthesis gas not covered by groups C01B2203/02 - C01B2203/1695
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/80Aspect of integrated processes for the production of hydrogen or synthesis gas not covered by groups C01B2203/02 - C01B2203/1695
    • C01B2203/82Several process steps of C01B2203/02 - C01B2203/08 integrated into a single apparatus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Hydrogen, Water And Hydrids (AREA)
ZA887027A 1987-10-19 1988-09-20 Ammonia synthesis gas ZA887027B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878724474A GB8724474D0 (en) 1987-10-19 1987-10-19 Ammonia synthesis gas

Publications (1)

Publication Number Publication Date
ZA887027B true ZA887027B (en) 1989-06-28

Family

ID=10625554

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA887027A ZA887027B (en) 1987-10-19 1988-09-20 Ammonia synthesis gas

Country Status (6)

Country Link
US (1) US4981669A (ru)
EP (1) EP0313211A1 (ru)
JP (1) JPH01139692A (ru)
GB (1) GB8724474D0 (ru)
IN (1) IN174179B (ru)
ZA (1) ZA887027B (ru)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD295741A7 (de) * 1989-04-05 1991-11-14 Stickstoffwerke Ag Wittenberg,De Verfahren zur steuerung des methan- und edelgasgehaltes eines ammoniak-wasserstoffrueckgewinnung-edelgas-komplexes
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
DE19625093A1 (de) * 1996-06-24 1998-01-02 Bayer Ag Verfahren zur Gewinnung von Kohlenmonoxid und Wasserstoff
US20020129622A1 (en) * 2001-03-15 2002-09-19 American Air Liquide, Inc. Heat transfer fluids and methods of making and using same
US6986870B1 (en) 2002-09-11 2006-01-17 University Of Central Florida Research Foundation, Inc Combined methane decomposition and ammonia formation cell
MY142221A (en) * 2005-04-06 2010-11-15 Cabot Corp Method to produce hydrogen or synthesis gas
US7094384B1 (en) 2005-09-19 2006-08-22 University Of Central Florida Research Foundation, Inc. Combined methane decomposition and ammonia formation cell
EP2065337A1 (en) * 2007-11-27 2009-06-03 Ammonia Casale S.A. Process for producing ammonia synthesis gas
US20100018901A1 (en) * 2008-07-24 2010-01-28 Krupa Steven L Process and apparatus for producing a reformate by introducing methane
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
EP3156363A1 (en) * 2015-10-15 2017-04-19 Casale SA Process for making a synthesis gas by reforming of a hydrocarbon and including recovery of carbon dioxide at high pressure
US10906808B2 (en) * 2017-11-15 2021-02-02 Gas Technology Institute Noble metal catalysts and processes for reforming of methane and other hydrocarbons
CN114715845A (zh) * 2021-01-05 2022-07-08 中国石油天然气股份有限公司 合成氨系统
CN117303312A (zh) * 2023-11-28 2023-12-29 上海电气集团国控环球工程有限公司 一种水煤气变换气制造氨合成气方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000993B1 (en) * 1977-08-22 1982-12-08 Imperial Chemical Industries Plc Ammonia production process
GB2085314B (en) * 1980-10-07 1984-09-12 Ici Plc Hydrocarbon cracking process and catalyst
GB2126573A (en) * 1982-09-10 1984-03-28 Humphreys & Glasgow Ltd Ammonia process
US4479925A (en) * 1982-09-13 1984-10-30 The M. W. Kellogg Company Preparation of ammonia synthesis gas
DE3679090D1 (de) * 1985-03-08 1991-06-13 Ici Plc Synthesegas.

Also Published As

Publication number Publication date
JPH01139692A (ja) 1989-06-01
EP0313211A1 (en) 1989-04-26
IN174179B (ru) 1994-10-01
GB8724474D0 (en) 1987-11-25
US4981669A (en) 1991-01-01

Similar Documents

Publication Publication Date Title
GB8420644D0 (en) Ammonia synthesis gas
GB2235464B (en) Synthesis gas preparation
ZA842370B (en) Synthesis gas
ZW5086A1 (en) Synthesis gas
GB8501629D0 (en) Refining ammonia synthesis gas
GB8711756D0 (en) Ammonia synthesis gas production
GB8427288D0 (en) Synthesis gas
GB8724474D0 (en) Ammonia synthesis gas
YU94587A (en) Convertor for ammonia synthesis
GB8420666D0 (en) Ammonia synthesis processes
GB2139644B (en) Synthesis gas
EP0179392A3 (en) Ammonia synthesis process
EP0236037A3 (en) Ammonia synthesis
ZW7085A1 (en) Ammonia synthesis
GB8400639D0 (en) Synthesis gas
GB8629093D0 (en) Ammonia synthesis process
GB8427289D0 (en) Synthesis gas
GB8617271D0 (en) Synthesis gas
GB8620993D0 (en) Synthesis gas
GB8804014D0 (en) Synthesis gas production
GB8621954D0 (en) Synthesis gas production
AU574735B2 (en) Ammonia from synthesis gas
GB8910375D0 (en) Ammonia synthesis gas
GB8716888D0 (en) Synthesis gas
GB8425508D0 (en) Ammonia synthesis gas