GB1000772A - Decomposition of ammonia - Google Patents

Decomposition of ammonia

Info

Publication number
GB1000772A
GB1000772A GB48473/62A GB4847362A GB1000772A GB 1000772 A GB1000772 A GB 1000772A GB 48473/62 A GB48473/62 A GB 48473/62A GB 4847362 A GB4847362 A GB 4847362A GB 1000772 A GB1000772 A GB 1000772A
Authority
GB
United Kingdom
Prior art keywords
alumina
nickel
salt
catalyst
ammonia
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
GB48473/62A
Inventor
Dudley Keith Shipley
Laurence Lloyd
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB48473/62A priority Critical patent/GB1000772A/en
Priority to BE641469A priority patent/BE641469A/xx
Priority to LU45057D priority patent/LU45057A1/xx
Publication of GB1000772A publication Critical patent/GB1000772A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/02—Preparation of nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • 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
    • 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
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
    • C01B3/047—Decomposition of ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Catalysts (AREA)

Abstract

Ammonia is decomposed to nitrogen and hydrogen by passing it over a catalyst, consisting of nickel supported on alumina, maintained at 600-900 DEG C., the alumina having before the application of nickel to it a specific surface of more than 20 m.2/gm. The alumina may be made by heating alumina monohydrate or trihydrate at 500-1000 DEG C. for 2 hours. The catalyst support is desirably at least partly gamma alumina and may be converted to kappa during use, but not more than 20% of the alumina should be in the alpha form. The nickel content of the catalyst may be up to 50% by weight. The alumina hydrates may be made by seeding or carbonation of a sodium aluminate solution. The catalyst, which should be sulphur free (<0.5%) may be made by impregnating alumina with a sulphur-free nickel salt, especially nickel nitrate, then draining, drying and converting the salt to metallic nickel. After the drying stage the impregnation may be repeated in order to increase the content of nickel salt. In converting the salt to nickel the salt may be first decomposed to the oxide by heating, then reduced by hydrogen or ammonia. The reduction is conveniently carried out in the catalyst chamber of the NH3 cracking plant. Specification 768,091 is referred to.
GB48473/62A 1962-12-21 1962-12-21 Decomposition of ammonia Expired GB1000772A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB48473/62A GB1000772A (en) 1962-12-21 1962-12-21 Decomposition of ammonia
BE641469A BE641469A (en) 1962-12-21 1963-12-18
LU45057D LU45057A1 (en) 1962-12-21 1963-12-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48473/62A GB1000772A (en) 1962-12-21 1962-12-21 Decomposition of ammonia

Publications (1)

Publication Number Publication Date
GB1000772A true GB1000772A (en) 1965-08-11

Family

ID=10448740

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48473/62A Expired GB1000772A (en) 1962-12-21 1962-12-21 Decomposition of ammonia

Country Status (3)

Country Link
BE (1) BE641469A (en)
GB (1) GB1000772A (en)
LU (1) LU45057A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081510A (en) * 1975-10-15 1978-03-28 Hitachi, Ltd. Process for catalytically treating an exhaust gas containing ammonia gas and oxygen gas to reduce said ammonia gas to nitrogen
US5169825A (en) * 1990-02-28 1992-12-08 Tomita Pharmaceutical Co., Ltd. Ammonium ion- and ammonia-selective adsorbent and process for preparation of same
US5632964A (en) * 1994-06-13 1997-05-27 Japan Pionics Co., Ltd. Cleaning method for exhaust gas containing ammonia and silane
TWI400122B (en) * 2009-12-18 2013-07-01 China Steel Corp Preparation of Ammonia Pyrolysis Catalysts
EP2332646A4 (en) * 2008-09-17 2015-07-22 Nippon Catalytic Chem Ind Catalyst for ammonia decomposition, process for producing same, and method of treating ammonia

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081510A (en) * 1975-10-15 1978-03-28 Hitachi, Ltd. Process for catalytically treating an exhaust gas containing ammonia gas and oxygen gas to reduce said ammonia gas to nitrogen
US5169825A (en) * 1990-02-28 1992-12-08 Tomita Pharmaceutical Co., Ltd. Ammonium ion- and ammonia-selective adsorbent and process for preparation of same
US5632964A (en) * 1994-06-13 1997-05-27 Japan Pionics Co., Ltd. Cleaning method for exhaust gas containing ammonia and silane
EP2332646A4 (en) * 2008-09-17 2015-07-22 Nippon Catalytic Chem Ind Catalyst for ammonia decomposition, process for producing same, and method of treating ammonia
TWI400122B (en) * 2009-12-18 2013-07-01 China Steel Corp Preparation of Ammonia Pyrolysis Catalysts

Also Published As

Publication number Publication date
BE641469A (en) 1964-06-18
LU45057A1 (en) 1964-02-19

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