DE2219949B2 - Verfahren zur Herstellung von methanreichen Gasprodukten durch katalytisch« Wasserdampfreformierung einer Kohlenwasserstoffbeschickung - Google Patents
Verfahren zur Herstellung von methanreichen Gasprodukten durch katalytisch« Wasserdampfreformierung einer KohlenwasserstoffbeschickungInfo
- Publication number
- DE2219949B2 DE2219949B2 DE2219949A DE2219949A DE2219949B2 DE 2219949 B2 DE2219949 B2 DE 2219949B2 DE 2219949 A DE2219949 A DE 2219949A DE 2219949 A DE2219949 A DE 2219949A DE 2219949 B2 DE2219949 B2 DE 2219949B2
- Authority
- DE
- Germany
- Prior art keywords
- reaction zone
- hydrogen
- methane
- gasification reaction
- gas
- 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.)
- Withdrawn
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims description 64
- 238000000034 method Methods 0.000 title claims description 45
- 229930195733 hydrocarbon Natural products 0.000 title claims description 27
- 150000002430 hydrocarbons Chemical class 0.000 title claims description 27
- 239000004215 Carbon black (E152) Substances 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000001193 catalytic steam reforming Methods 0.000 title claims description 8
- 239000007789 gas Substances 0.000 claims description 72
- 238000006243 chemical reaction Methods 0.000 claims description 59
- 229910052739 hydrogen Inorganic materials 0.000 claims description 53
- 239000001257 hydrogen Substances 0.000 claims description 53
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 42
- 238000002309 gasification Methods 0.000 claims description 32
- 239000003054 catalyst Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 25
- 150000002431 hydrogen Chemical class 0.000 claims description 11
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000003502 gasoline Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000001294 propane Substances 0.000 claims description 5
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 4
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000001273 butane Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 239000000047 product Substances 0.000 description 21
- 238000000629 steam reforming Methods 0.000 description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 238000003776 cleavage reaction Methods 0.000 description 9
- 230000007017 scission Effects 0.000 description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 235000013844 butane Nutrition 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 230000009849 deactivation Effects 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 238000004517 catalytic hydrocracking Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- SXKJCXWNWBRZGB-UHFFFAOYSA-N chromium copper manganese Chemical compound [Mn][Cr][Cu] SXKJCXWNWBRZGB-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- IXWIAFSBWGYQOE-UHFFFAOYSA-M aluminum;magnesium;oxygen(2-);silicon(4+);hydroxide;tetrahydrate Chemical compound O.O.O.O.[OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] IXWIAFSBWGYQOE-UHFFFAOYSA-M 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- XXLDWSKFRBJLMX-UHFFFAOYSA-N carbon dioxide;carbon monoxide Chemical compound O=[C].O=C=O XXLDWSKFRBJLMX-UHFFFAOYSA-N 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- 125000004836 hexamethylene group Chemical class [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010915 one-step procedure Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
- C01B3/32—Production 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
- C01B3/34—Production 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
- C01B3/38—Production 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 using catalysts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/26—Fuel gas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13749571A | 1971-04-26 | 1971-04-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2219949A1 DE2219949A1 (de) | 1972-11-16 |
| DE2219949B2 true DE2219949B2 (de) | 1979-07-12 |
Family
ID=22477687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2219949A Withdrawn DE2219949B2 (de) | 1971-04-26 | 1972-04-24 | Verfahren zur Herstellung von methanreichen Gasprodukten durch katalytisch« Wasserdampfreformierung einer Kohlenwasserstoffbeschickung |
Country Status (27)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS518964B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-10-07 | 1976-03-23 | ||
| JPS5320002B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-01-14 | 1978-06-24 | ||
| JPS5550080B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-11-28 | 1980-12-16 | ||
| US3992166A (en) * | 1972-12-28 | 1976-11-16 | Japan Gasoline Co., Ltd. | Low temperature steam reforming process for hydrocarbons |
| US4000987A (en) * | 1973-02-03 | 1977-01-04 | Japan Gasoline Co., Ltd. | Low-temperature steam reforming process for hydrocarbons |
| US4000988A (en) * | 1973-06-20 | 1977-01-04 | Japan Gasoline Co., Ltd. | Low-temperature steam reforming process for hydrocarbons |
| US3904744A (en) * | 1973-10-01 | 1975-09-09 | Exxon Research Engineering Co | Process for the production of hydrogen-containing gases |
| US4160649A (en) * | 1978-08-25 | 1979-07-10 | Uop Inc. | Substituted natural gas via steam reforming of kerosene |
| RU2184760C1 (ru) * | 2001-04-06 | 2002-07-10 | ЗАО "Каспийская нефтеперерабатывающая компания" | Установка термокаталитического крекинга |
| US8142527B2 (en) * | 2005-03-21 | 2012-03-27 | Ben-Gurion University Of The Negev Research And Development Authority | Production of diesel fuel from vegetable and animal oils |
| GB201000097D0 (en) | 2010-01-05 | 2010-12-29 | Johnson Matthey Plc | Apparatus and process for treating natural gas |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1392474A (fr) * | 1963-08-02 | 1965-03-19 | Gas Council | Procédé de préparation de mélanges gazeux à partir d'un distillat de pétrole |
| NL6804705A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1967-04-03 | 1968-10-04 |
-
1971
- 1971-04-26 US US00137495A patent/US3744981A/en not_active Expired - Lifetime
-
1972
- 1972-04-18 ZA ZA722626A patent/ZA722626B/xx unknown
- 1972-04-19 BE BE782300A patent/BE782300A/xx unknown
- 1972-04-20 ES ES401940A patent/ES401940A1/es not_active Expired
- 1972-04-20 IL IL39255A patent/IL39255A/xx unknown
- 1972-04-21 PH PH13476A patent/PH9982A/en unknown
- 1972-04-21 CA CA140,271A patent/CA960460A/en not_active Expired
- 1972-04-22 EG EG162/72A patent/EG10931A/xx active
- 1972-04-24 DE DE2219949A patent/DE2219949B2/de not_active Withdrawn
- 1972-04-24 IT IT49835/72A patent/IT952766B/it active
- 1972-04-24 NL NL7205538A patent/NL7205538A/xx not_active Application Discontinuation
- 1972-04-24 GB GB1886872A patent/GB1379498A/en not_active Expired
- 1972-04-24 AT AT360472A patent/AT357256B/de not_active IP Right Cessation
- 1972-04-24 YU YU1083/72A patent/YU35374B/xx unknown
- 1972-04-25 FR FR727214583A patent/FR2134471B1/fr not_active Expired
- 1972-04-25 HU HUUI190A patent/HU167538B/hu unknown
- 1972-04-25 SU SU1778632A patent/SU434660A3/ru active
- 1972-04-25 PL PL1972154975A patent/PL84598B1/pl unknown
- 1972-04-25 FI FI1172/72A patent/FI55046C/fi active
- 1972-04-25 NO NO1433/72A patent/NO136463C/no unknown
- 1972-04-25 DD DD162570A patent/DD98533A5/xx unknown
- 1972-04-25 SE SE7205442A patent/SE387100B/xx unknown
- 1972-04-26 AU AU41537/72A patent/AU459133B2/en not_active Expired
- 1972-04-26 BG BG020333A patent/BG25652A3/xx unknown
- 1972-04-26 CS CS2843A patent/CS167980B2/cs unknown
- 1972-04-26 BR BR2552/72A patent/BR7202552D0/pt unknown
- 1972-04-26 RO RO7270711A patent/RO64680A/ro unknown
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