GB676287A - Method of providing a controlled atmosphere containing nitrogen or a mixture of nitrogen and hydrogen - Google Patents
Method of providing a controlled atmosphere containing nitrogen or a mixture of nitrogen and hydrogenInfo
- Publication number
- GB676287A GB676287A GB3595/51A GB359551A GB676287A GB 676287 A GB676287 A GB 676287A GB 3595/51 A GB3595/51 A GB 3595/51A GB 359551 A GB359551 A GB 359551A GB 676287 A GB676287 A GB 676287A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitrogen
- catalyst
- mixture
- hydrogen
- 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
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract 10
- 229910052757 nitrogen Inorganic materials 0.000 title abstract 5
- 239000001257 hydrogen Substances 0.000 title abstract 4
- 229910052739 hydrogen Inorganic materials 0.000 title abstract 4
- 239000000203 mixture Substances 0.000 title abstract 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title abstract 3
- 238000004320 controlled atmosphere Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 10
- 239000003054 catalyst Substances 0.000 abstract 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 5
- 229910021529 ammonia Inorganic materials 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 abstract 2
- 229910052741 iridium Inorganic materials 0.000 abstract 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052697 platinum Inorganic materials 0.000 abstract 2
- 229910052703 rhodium Inorganic materials 0.000 abstract 2
- 239000010948 rhodium Substances 0.000 abstract 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 abstract 2
- 229910052707 ruthenium Inorganic materials 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
- C21D1/763—Adjusting the composition of the atmosphere using a catalyst
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- 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
-
- 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
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/24—Nitric oxide (NO)
- C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
-
- 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
- C01B3/025—Preparation or purification of gas mixtures for ammonia synthesis
-
- 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
-
- 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
- B01J37/03—Precipitation; Co-precipitation
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Catalysts (AREA)
Abstract
<PICT:0676287/III/1> A controlled atmosphere of nitrogen or nitrogen and hydrogen is obtained by passing a mixture of gaseous ammonia and free oxygen - containing gas, wherein the molecular ratio of NH3 to O2 is greater than 4:3, over a supported catalyst comprising at least one metal of the platinum group, e.g. 0.5 per cent by weight platinum, rhodium, ruthenium and/or iridium deposited on dehydrated alumina or zirconium dioxide. A proportioned mixture of ammonia and air containing at least 21.83 per cent ammonia is passed into the top of the catalyst chamber 16 through a bed of catalyst 29. The frusto-conical shape 30 ensures that regardless of the amount of ammonia feed there is always a zone in which optimum oxidation efficiency is obtained. After condensation of water, the exit gases are mixed with a controlled amount of air and passed over a supported palladium catalyst bed 33, heated to 100 DEG C or more by heat exchange with the gases coming from bed 29, to remove any nitrogen oxides and adjust the hydrogen content. Water is again condensed out. Where nitrogen alone is the product the catalyst metal is essentially platinum for combustion, but where a nitrogen-hydrogen mixture is the product then rhodium, ruthenium, and/or iridium are also used for cracking and the catalysts may be in single or separate beds.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU30580D LU30580A1 (en) | 1951-02-14 | ||
| BE501335D BE501335A (en) | 1951-02-14 | ||
| NL81697D NL81697C (en) | 1951-02-14 | ||
| US84245A US2606875A (en) | 1949-03-29 | 1949-03-29 | Controlled atmosphere |
| DEB13595A DE885395C (en) | 1951-02-04 | 1951-02-04 | Process for the production of nitrogen or nitrogen-hydrogen mixtures |
| GB3595/51A GB676287A (en) | 1951-02-14 | 1951-02-14 | Method of providing a controlled atmosphere containing nitrogen or a mixture of nitrogen and hydrogen |
| FR1055823D FR1055823A (en) | 1951-02-14 | 1951-02-14 | Process for preparing an atmosphere of special composition |
| CH307620D CH307620A (en) | 1951-02-14 | 1951-07-18 | Process for the production of a nitrogen-containing gas. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3595/51A GB676287A (en) | 1951-02-14 | 1951-02-14 | Method of providing a controlled atmosphere containing nitrogen or a mixture of nitrogen and hydrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB676287A true GB676287A (en) | 1952-07-23 |
Family
ID=9761296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3595/51A Expired GB676287A (en) | 1949-03-29 | 1951-02-14 | Method of providing a controlled atmosphere containing nitrogen or a mixture of nitrogen and hydrogen |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE501335A (en) |
| CH (1) | CH307620A (en) |
| FR (1) | FR1055823A (en) |
| GB (1) | GB676287A (en) |
| LU (1) | LU30580A1 (en) |
| NL (1) | NL81697C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3118727A (en) * | 1956-10-12 | 1964-01-21 | Engelhart Ind Inc | Method of removing nitrogen oxides from gases |
| EP1106239A2 (en) * | 1999-12-10 | 2001-06-13 | The BOC Group plc | Method for purifying waste gas containing ammonia |
| CN103588279A (en) * | 2013-10-15 | 2014-02-19 | 常州思宇环保材料科技有限公司 | Treatment device for high-concentration ammonia-nitrogen wastewater |
-
0
- BE BE501335D patent/BE501335A/xx unknown
- LU LU30580D patent/LU30580A1/xx unknown
- NL NL81697D patent/NL81697C/xx active
-
1951
- 1951-02-14 FR FR1055823D patent/FR1055823A/en not_active Expired
- 1951-02-14 GB GB3595/51A patent/GB676287A/en not_active Expired
- 1951-07-18 CH CH307620D patent/CH307620A/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3118727A (en) * | 1956-10-12 | 1964-01-21 | Engelhart Ind Inc | Method of removing nitrogen oxides from gases |
| EP1106239A2 (en) * | 1999-12-10 | 2001-06-13 | The BOC Group plc | Method for purifying waste gas containing ammonia |
| EP1106239A3 (en) * | 1999-12-10 | 2001-11-28 | The BOC Group plc | Method for purifying waste gas containing ammonia |
| US6488905B2 (en) | 1999-12-10 | 2002-12-03 | The Boc Group Plc | Destruction of waste gas |
| CN103588279A (en) * | 2013-10-15 | 2014-02-19 | 常州思宇环保材料科技有限公司 | Treatment device for high-concentration ammonia-nitrogen wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CH307620A (en) | 1955-06-15 |
| FR1055823A (en) | 1954-02-22 |
| NL81697C (en) | 1900-01-01 |
| LU30580A1 (en) | |
| BE501335A (en) | 1900-01-01 |
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