IT9020860A1 - END OF GAS PURIFICATION PROCEDURE - Google Patents
END OF GAS PURIFICATION PROCEDURE Download PDFInfo
- Publication number
- IT9020860A1 IT9020860A1 IT020860A IT2086090A IT9020860A1 IT 9020860 A1 IT9020860 A1 IT 9020860A1 IT 020860 A IT020860 A IT 020860A IT 2086090 A IT2086090 A IT 2086090A IT 9020860 A1 IT9020860 A1 IT 9020860A1
- Authority
- IT
- Italy
- Prior art keywords
- adsorption
- zirconium
- gas
- iron
- fine purification
- Prior art date
Links
- 238000000746 purification Methods 0.000 title claims description 12
- 239000007789 gas Substances 0.000 claims description 24
- 238000001179 sorption measurement Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- ZGTNJINJRMRGNV-UHFFFAOYSA-N [V].[Fe].[Zr] Chemical compound [V].[Fe].[Zr] ZGTNJINJRMRGNV-UHFFFAOYSA-N 0.000 claims description 3
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical compound [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052756 noble gas Inorganic materials 0.000 claims description 3
- 150000002835 noble gases Chemical class 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910001093 Zr alloy Inorganic materials 0.000 claims description 2
- NDUKHFILUDZSHZ-UHFFFAOYSA-N [Fe].[Zr] Chemical compound [Fe].[Zr] NDUKHFILUDZSHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910000640 Fe alloy Inorganic materials 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 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
- C01B23/00—Noble gases; Compounds thereof
-
- 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
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
- C01B21/045—Physical processing only by adsorption in solids
- C01B21/0483—Physical processing only by adsorption in solids in getters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
Descrizione dell'invenzione industriale avente per titolo: "Procedimento per la depurazione fine di gas" Description of the industrial invention entitled: "Process for the fine purification of gas"
Riassunto del trovato Summary of the finding
La depurazione fine di gas nobili od azoto avviene mediante adsorbimento su materiale di assorbimento, costituito di leghe di zirconio, vanadio, alluminio e ferro a varie centinaie di gradi centigradi. The fine purification of noble gases or nitrogen takes place by adsorption on absorption material, consisting of alloys of zirconium, vanadium, aluminum and iron at several hundred degrees centigrade.
Successivamente i gas depurati vengono compressi e immessi in bombole per gas compresso. Per assicurare la purezza del gas da travasare l'adsorbimento avviene a pressioni fino a 230 bar. Subsequently, the purified gases are compressed and placed in compressed gas cylinders. To ensure the purity of the gas to be transferred, adsorption takes place at pressures up to 230 bar.
Descrizione del trovato Description of the finding
L'invenzione riguarda un procedimento per la depurazione fine di gas mediante adsorbimento su "getter" o materiali di assorbimento, conformemente alla definizione introduttiva della riendicazione 1. The invention relates to a process for the fine purification of gas by adsorption on "getters" or adsorption materials, in accordance with the introductory definition of claim 1.
In relazione a ciò la depurazione fine significa la produzione di gas purissimi fino alla classe di 7.0 e la loro immissione in recipienti per gas compressi. In un gas della classe 7.0 la somma di tutte le impurità è, al massimo, di 0,1 ppm. In relation to this, fine purification means the production of very pure gases up to the class of 7.0 and their introduction into containers for compressed gases. In a gas of class 7.0 the sum of all impurities is, at most, 0.1 ppm.
In base all'attuale stato della tecnica la depurazione fine di tali gas avviene mediante adsorbimento su materiali di assorbimento costituiti di leghe di zirconio-ferro, zirconio-vanadio-ferro oppure zirconio-alluminio. La temperatura di adsorbimento è compresa tra 350 e 600°C e le pressioni di adsorbimento sono di alcun bar. Tali metodi di depurazione sono descritti specialmente per azoto e gas nobili nelle domande di brevetto tedesche pubblicate 3621 013 e 3621 014. I gas depurati in tal modo successivamente con l'ausilio di compressori vengono immessi in contenitori per gas compresso. La superficie interna dei contenitori per gas compresso, ossia delle bombole per gas compresso di alluminio o di acciaio, viene pulita e trattata in base a diversi procedimenti, cosicché si verificano soltanto possibilmente modeste interazioni fra la superficie interna e il gas immesso, ossia l'elevata purezza del gas viene garantita per un lungo intervallo di tempo. Con questo procedimento è possibile produrre gas purissimi della classe 7.0, tuttavia anche nell'ambito di questa classe di purezza si deve mirare ad ottenere gas con possibilmente poche impurità. On the basis of the current state of the art, the fine purification of these gases takes place by adsorption on absorption materials consisting of zirconium-iron, zirconium-vanadium-iron or zirconium-aluminum alloys. The adsorption temperature is between 350 and 600 ° C and the adsorption pressures are no bar. Such purification methods are described especially for nitrogen and noble gases in the published German patent applications 3621 013 and 3621 014. The gases purified in this way subsequently with the aid of compressors are fed into compressed gas containers. The internal surface of compressed gas containers, i.e. compressed gas cylinders made of aluminum or steel, is cleaned and treated according to various processes, so that only possible minor interactions occur between the internal surface and the injected gas, i.e. high purity of the gas is guaranteed for a long period of time. With this process it is possible to produce very pure gases of class 7.0, however, even within this purity class it must be aimed at obtaining gases with as few impurities as possible.
L'invenzione si pone pertanto il compito di aumentare la purezza dei gas immagazzinati, in un procedimento per la depurazione fine di gas, da immettere in contenitori per gas compresso, mediante adsorbimento su materiali di assorbimento. The invention therefore has the task of increasing the purity of the stored gases, in a process for the fine purification of gas, to be introduced into containers for compressed gas, by adsorption on absorption materials.
Partendo dallo stato della tecnica, preso in considerazione nella definizione introduttiva della rivendicazione 1, questo problema viene risolto, secondo l'invenzione, con le caratteristiche indicate nella parte caratterizzante della rivendicazione 1. Starting from the state of the art, taken into consideration in the introductory definition of claim 1, this problem is solved, according to the invention, with the characteristics indicated in the characterizing part of claim 1.
Vantaggiosi e ulteriori sviluppi dell'invenzione sono indicati nelle sottorivendicazioni. Advantageous and further developments of the invention are indicated in the subordinate claims.
Il procedimento secondo l'invenzione pertanto parte dalla depurazione fine di gas, finora usuale, mediante adsorbimento su materiali di assorbimento, tuttavia secondo l'invenzione l'adsorbimento avviene a pressioni corrispondenti alle pressioni di riempimento nei contenitori per gas compresso. Conseguentemente si evita l'impiego di un compressore sul lato depurato, ossia dopo aver oltrepassato l'adsorbitore. Questo compressore costituisce una possibile fonte per la ricontaminazione del gas prodotto con impurità. The process according to the invention therefore starts from the fine purification of gas, hitherto usual, by adsorption on adsorption materials, however according to the invention the adsorption takes place at pressures corresponding to the filling pressures in the containers for compressed gas. Consequently, the use of a compressor on the purified side is avoided, ie after passing the adsorber. This compressor constitutes a possible source for recontamination of the produced gas with impurities.
Il procedimento secondo l'invenzione richiede l'impiego di un adsorbitore con una cassa di acciaio, che può essere sollecitata con le temperature e le pressioni menzionate. Il materiale di assorbimento viene immesso nella cassa nella forma di materiale pallettizzato, granulato o The process according to the invention requires the use of an adsorber with a steel case, which can be stressed with the mentioned temperatures and pressures. The adsorption material is fed into the crate in the form of palletized, granulated or
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3926015A DE3926015A1 (en) | 1989-08-05 | 1989-08-05 | METHOD FOR THE FINE PURIFICATION OF GASES |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| IT9020860A0 IT9020860A0 (en) | 1990-07-04 |
| IT9020860A1 true IT9020860A1 (en) | 1992-01-04 |
| IT1246035B IT1246035B (en) | 1994-11-07 |
Family
ID=6386626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT02086090A IT1246035B (en) | 1989-08-05 | 1990-07-04 | END OF GAS PURIFICATION PROCEDURE |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3926015A1 (en) |
| FR (1) | FR2650513B1 (en) |
| GB (1) | GB2234451B (en) |
| IT (1) | IT1246035B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2117319A1 (en) * | 1993-07-12 | 1995-01-13 | John D. Baker | Method for the purification of noble gases, nitrogen and hydrogen |
| JP3462560B2 (en) * | 1994-03-04 | 2003-11-05 | 日本パイオニクス株式会社 | Hydrogen gas purification method |
| DE19528784C1 (en) * | 1995-08-04 | 1996-08-29 | Inst Neuwertwirtschaft Gmbh | Inert gas purificn. to purity suitable for laser and cryo-technology |
| SE507179C2 (en) | 1995-12-01 | 1998-04-20 | Asea Brown Boveri | Methods and apparatus for gas purification during hot isostatic pressing |
| KR100356611B1 (en) * | 2000-08-10 | 2002-10-18 | 주식회사 아토 | Purification Method and Apparatus for Nitrogen |
| US6918430B2 (en) * | 2002-08-14 | 2005-07-19 | Texaco Ovonic Hydrogen Systems Llc | Onboard hydrogen storage unit with heat transfer system for use in a hydrogen powered vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1110271B (en) * | 1979-02-05 | 1985-12-23 | Getters Spa | NON-EVAPORABLE TERNARY GETTERING ALLOY AND METHOD OF ITS USE FOR THE ABSORPTION OF WATER, WATER VAPOR, OTHER GASES |
| IT1110295B (en) * | 1979-02-05 | 1985-12-23 | Getters Spa | NON-EVAPORABLE TERNARY GETTERING ALLOY PARTICULARLY FOR THE ABSORPTION OF WATER AND WATER VAPOR IN FUEL BARS OF NUCLEAR REACTORS |
| IT1115156B (en) * | 1979-04-06 | 1986-02-03 | Getters Spa | ZR-FE ALLOYS FOR HYDROGEN ABSORPTION AT LOW TEMPERATURES |
| JPS623006A (en) * | 1985-06-28 | 1987-01-09 | 大陽酸素株式会社 | Nitrogen super purification facilities and purification process |
| JPS623008A (en) * | 1985-06-28 | 1987-01-09 | 大陽酸素株式会社 | Argon super purification facilities and purification process |
| IT1227219B (en) * | 1988-09-26 | 1991-03-27 | Getters Spa | APPARATUS AND RELATED METHOD TO REMOVE GASEOUS IMPURITIES FROM INERT GASES AND ENSURE EXTREMELY LOW HYDROGEN LEVELS |
-
1989
- 1989-08-05 DE DE3926015A patent/DE3926015A1/en not_active Withdrawn
-
1990
- 1990-07-04 FR FR9008463A patent/FR2650513B1/en not_active Expired - Fee Related
- 1990-07-04 IT IT02086090A patent/IT1246035B/en active IP Right Grant
- 1990-07-12 GB GB9015323A patent/GB2234451B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3926015A1 (en) | 1991-02-07 |
| FR2650513A1 (en) | 1991-02-08 |
| GB9015323D0 (en) | 1990-08-29 |
| FR2650513B1 (en) | 1993-02-19 |
| GB2234451B (en) | 1993-07-07 |
| GB2234451A (en) | 1991-02-06 |
| IT1246035B (en) | 1994-11-07 |
| IT9020860A0 (en) | 1990-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted |