CN1272481A - 烃类原料的脱氢方法 - Google Patents
烃类原料的脱氢方法 Download PDFInfo
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- 238000006356 dehydrogenation reaction Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 13
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 13
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 title claims description 4
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 239000001257 hydrogen Substances 0.000 claims abstract description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000002829 reductive effect Effects 0.000 claims abstract description 5
- 229910000765 intermetallic Inorganic materials 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 238000000975 co-precipitation Methods 0.000 claims description 2
- 229910001463 metal phosphate Inorganic materials 0.000 claims 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims 1
- FNLJLQUTIUDEHI-UHFFFAOYSA-N phosphoric acid vanadium Chemical compound [V].OP(O)(O)=O FNLJLQUTIUDEHI-UHFFFAOYSA-N 0.000 claims 1
- 239000006069 physical mixture Substances 0.000 claims 1
- 239000002243 precursor Substances 0.000 claims 1
- 238000007669 thermal treatment Methods 0.000 claims 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 19
- 239000001301 oxygen Substances 0.000 description 19
- 229910052760 oxygen Inorganic materials 0.000 description 19
- 230000003647 oxidation Effects 0.000 description 12
- 238000007254 oxidation reaction Methods 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000010926 purge Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 150000002894 organic compounds Chemical class 0.000 description 4
- 239000011651 chromium Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- IBYSTTGVDIFUAY-UHFFFAOYSA-N vanadium monoxide Chemical compound [V]=O IBYSTTGVDIFUAY-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
- C07C5/333—Catalytic processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/42—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B35/00—Reactions without formation or introduction of functional groups containing hetero atoms, involving a change in the type of bonding between two carbon atoms already directly linked
- C07B35/04—Dehydrogenation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
一种使烃类原料脱氢的方法,包括一个使烃类原料脱氢的步骤和一个除去由脱氢反应所产生的氢的步骤,其中脱氢及除去氢的步骤在与一种在氢存在下被还原的金属化合物结合的脱氢催化剂存在下同时进行。
Description
本发明涉及通过在高温下使烃类原料和脱氢催化剂接触而将烃类原料脱氢的方法。更具体地说,本发明提供了一种通过加入在还原条件下能够释放氧而在氧化条件下能够摄取氧的金属氧化物而进行现场除氢的方法。
在本技术领域中,已知有很多包括脱氢反应的工艺方法。一般而言,这些方法都存在着许多缺点,其中包括由于热力学的限制使所需产物产率低。另外,大量加热的需要限制了向所需产物的转化。这些方法已被公开于如美国专利US4,914,075、Dunn R.O.等(Proceedings,DeWitt Petrochemical Review,Houston,Texas,1992,01)、Wilcher F.P.等(Proceedings,DeWitt Petrochemicol Review,Houston,Texas,1990,T1)和美国专利US4,746,643。
已知的从烃类物流中选择性除氢的方法都是采用分立的除氢步骤。一般而言,除氢是通过将混合有氧的、部分脱氢的物流和贵金属催化剂进行级间接触(interstage contacting)而实现。这种技术的实例示于美国专利US4,418,237、4,435,607、4,788,371和4,886,928。上述的级间除氢的缺陷是,除了氢在氧存在下氧化之外,存在的有机化合物也氧化,结果产生二氧化碳和一氧化碳。大部分的脱氢技术都包括至少两个步骤:一个脱氢步骤,其中使脱氢催化剂和烃类原料接触;一个再生步骤,其中使催化剂和含氧原料接触。因此,在脱氢步骤中,还原势(reduction potential)高;而在氧化步骤中,氧化势(oxidation potential)高。
已知在高温下,很多金属氧化物都可被氢还原并可在氧存在下被再氧化。这类金属氧化物在下文中称为氧还-氧化物(redox-oxide)。在上述脱氢循环中,这些氧还-氧化物在脱氢步骤中可通过金属晶格氧与氢反应产生水而被还原,并可在氧化步骤中与氧反应而被氧化。
通过混合脱氢催化剂和氧还-氧化物,并使催化剂和氧还-氧化物与含有有机化合物的原料接触,则可通过超越已知热力学限制的脱氢反应而转化有机化合物。欧洲专利公报EP558,148 A1公开了仅限于钙钛矿类的氧还-氧化物的这类应用的一个实例。
根据上述发现,本发明是一种使烃类原料脱氢的方法,该方法包括一个将烃类原料脱氢的步骤和一个除去由脱氢反应所产生的氢的步骤,其中脱氢及除去氢气的步骤在与一种在氢存在下被还原的金属化合物结合的脱氢催化剂存在下同时进行。
在本发明的方法中,有机化合物脱氢所形成的氢被高选择性的氧还-氧化物氧化,从而提供了一种更高转化率和脱氢选择性的方法。在烃类的脱氢过程中呈活性的催化剂是本技术领域常用的,并见于包括上述专利公报在内的文献。一般而言,在本方法的工艺条件下能够可逆性地改变氧化态的金属化合物均可用作本发明方法的氧还-金属化合物,以除去形成的氢。那些氧还-金属化合物包括氧化的金属化合物和金属氧化物。
所述结合的脱氢催化剂和氧还-金属催化剂可用本技术领域中已知的常规方法制备,例如,使脱氢催化剂的颗粒和氧还-金属化合物物理状态地混合,或者使各组分共沉淀,并任选在空气中煅烧。
实施例1
在石英流化床反应器中,加入100ml氧化铝负载的铬(Cr/Al2O3)脱氢催化剂试样。该催化剂呈球形,平均颗粒尺寸为70μm。
反应器以略高于大气压的压力并以循环模式操作,包括下列步骤:
1.在650℃空气中氧化反应,30分钟。
2.在650℃以氮吹洗,15分钟。
3.以CH4在650℃还原,4分钟。
4.以氮气降温,由650℃至580℃,15分钟。
5.在550℃-580℃使异丁烷脱氢,15分钟。
6.以氮气吹洗,15分钟。
重复步骤1至6数次,脱氢步骤的温度也改变。
纯脱氢催化剂用作对比例。在脱氢步骤中,原料流量为40Nl/h。由氧化步骤及接着的吹洗步骤排出的气体周袋收集。用另一个袋收集由脱氢步骤及接着的吹洗步骤所排出的气体。以气相色谱法分析两个袋内气体的组成。结果列于表1中。
实施例2
在加入2重量%的涂二氧化硅的亚磷化钒氧还-氧化物(silicacoated vanadium phosphorous)后,重复实施例1所述的测试。结果列于表1中。
实施例3
在加入5重量%的涂二氧化硅的亚磷化钒氧还-氧化物后,重复实施例1所述的测试。结果列于表1中。
表1 1-丁烷脱氢
实施例4
实验 | 温度,℃ | 转化率,重量% | 选择性,重量% |
1纯脱氢 | 550 | 41.15 | 91.20 |
1纯脱氢 | 560 | 44.91 | 89.79 |
1纯脱氢 | 570 | 49.48 | 87.14 |
1纯脱氢 | 580 | 54.05 | 83.17 |
2+2重量%氧-还氧化物 | 550 | 39.57 | 94.30 |
2+2重量%氧-还氧化物 | 560 | 43.39 | 93.51 |
2+2重量%氧-还氧化物 | 570 | 47.60 | 92.10 |
2+2重量%氧-还氧化物 | 580 | 52.13 | 90.18 |
2+2重量%氧 | 590 | 56.35 | 87.86 |
-还氧化物 | |||
3+5重量%氧-还氧化物 | 560 | 39.59 | 93.94 |
3+5重量%氧-还氧化物 | 570 | 44.70 | 92.87 |
3+5重量%氧-还氧化物 | 580 | 49.39 | 92.03 |
在石英流化床反应器中,加入100ml脱氢催化剂试样Cr/Al2O3。该催化剂为球形,平均颗粒尺寸为70μm。
反应器以略高于大气压的压力并以循环模式操作,包括下列步骤:在650℃、空气中氧化,30分钟:
1.在650℃以氮气吹洗,15分钟。
2.在550℃-620℃,使丙烷脱氢,15分钟。
3.以氮吹洗,15分钟。
重复步骤1至4数次,脱氢步骤温度亦改变。
纯脱氢催化剂用作对比例。在脱氢步骤,原料气体流量为52Nl/h。由氧化步骤及接着的吹洗步骤所排出的气体用袋收集。用另一个袋收集脱氢步骤及接着的吹洗步骤中所排出的气体。以气相色谱法分析两个袋内气体的组成。结果列于表2中。
实施例5
在加入5重量%的涂氧化硅的亚磷化钒的氧还-氧化物后,重复实施例4所述实验。结果列于表2中。
实施例6
在加入10重量%涂氧化硅的亚磷化钒的氧还-氧化物后,重复实施例4所述实验。结果列于表2中。
表2丙烷脱氢
实验 | 温度,℃ | 转化率,重量% | 选择性,重量% |
4纯脱氢 | 575 | 45.31 | 63.53 |
5+5重量%氧-还氧化物 | 575 | 30.80 | 86.12 |
5+5重量%氧-还氧化物 | 605 | 43.67 | 75.09 |
5+5重量%氧-还氧化物 | 612 | 46.42 | 73.89 |
6+10重量%氧-还氧化物 | 612 | 38.59 | 62.52 |
Claims (5)
1.一种使烃类原料脱氢的方法,包括一个使烃类原料脱氢的步骤和一个除去由脱氢反应所产生的氢的步骤,其中脱氢及除去氢的步骤在与一种在氢存在下被还原的金属化合物结合的脱氢催化剂存在下同时进行。
2.按照权利要求1的方法,其中所述的金属化合物选自金属磷酸盐和金属氧化物。
3.按照权利要求1的方法,其中结合的金属化合物和脱氢催化剂为物理状态混合物的形式。
4.按照权利要求1的方法,其中结合的金属化合物和脱氢催化剂可由相应的前体材料共沉淀及热处理制得。
5.按照权利要求2的方法,其中金属化合物是磷酸钒和/或氧化钼。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK199900477A DK199900477A (da) | 1999-04-12 | 1999-04-12 | Fremgangsmåde til dehydrogenering af carbonhydrid |
DKPA199900477 | 1999-04-12 |
Publications (2)
Publication Number | Publication Date |
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CN1272481A true CN1272481A (zh) | 2000-11-08 |
CN1179930C CN1179930C (zh) | 2004-12-15 |
Family
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Application Number | Title | Priority Date | Filing Date |
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CNB001065734A Expired - Fee Related CN1179930C (zh) | 1999-04-12 | 2000-04-12 | 烃类原料的脱氢方法 |
Country Status (13)
Country | Link |
---|---|
US (1) | US6326523B1 (zh) |
EP (1) | EP1044949B1 (zh) |
JP (1) | JP2000297048A (zh) |
KR (1) | KR100408740B1 (zh) |
CN (1) | CN1179930C (zh) |
AT (1) | ATE260878T1 (zh) |
AU (1) | AU766556B2 (zh) |
CA (1) | CA2302074C (zh) |
DE (1) | DE60008615T2 (zh) |
DK (1) | DK199900477A (zh) |
ES (1) | ES2216746T3 (zh) |
NO (1) | NO326149B1 (zh) |
RU (1) | RU2231517C2 (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US7973207B2 (en) * | 2005-09-02 | 2011-07-05 | Sud-Chemie Inc. | Endothermic hydrocarbon conversion process |
US7622623B2 (en) * | 2005-09-02 | 2009-11-24 | Sud-Chemie Inc. | Catalytically inactive heat generator and improved dehydrogenation process |
US7872159B2 (en) | 2007-08-24 | 2011-01-18 | Battelle Memorial Institute | Chemical production processes, systems, and catalyst compositions |
US7872158B2 (en) | 2007-08-24 | 2011-01-18 | Battelle Memorial Institute | Chemical production processes, systems, and catalyst compositions |
CA2841501A1 (en) | 2009-12-18 | 2011-06-23 | Battelle Memorial Institute | Multihydric compound dehydration systems, catalyst compositions, and methods |
US8895468B2 (en) | 2011-09-20 | 2014-11-25 | Basf Corporation | Chromia alumina catalysts for alkane dehydrogenation |
US9725380B2 (en) | 2014-03-14 | 2017-08-08 | Clariant Corporation | Dehydrogenation process with heat generating material |
US10246386B2 (en) | 2014-09-12 | 2019-04-02 | Sabic Global Technologies B.V. | Embedded alkane dehydrogenation systems and processes |
CN107216230B (zh) * | 2016-03-22 | 2020-10-27 | 北京安耐吉能源工程技术有限公司 | 异丁烷脱氢方法 |
JP2021088484A (ja) * | 2019-12-04 | 2021-06-10 | 国立研究開発法人農業・食品産業技術総合研究機構 | メタン除去装置、高純度窒素供給システム、ガスクロマトグラフ分析システム及び触媒機能再生方法 |
ZA202106756B (en) | 2020-09-17 | 2022-08-31 | Indian Oil Corp Ltd | An integrated oxidative alkane dehydrogenation and hydrogen generation process |
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US4418237A (en) | 1981-03-30 | 1983-11-29 | Uop Inc. | Dehydrogenation of dehydrogenatable hydrocarbons |
US4435607A (en) | 1981-04-28 | 1984-03-06 | Uop Inc. | Dehydrogenation of dehydrogenatable hydrocarbons |
IT1201421B (it) | 1985-06-17 | 1989-02-02 | Snam Progetti | Metodo per la preparazione di un catalizzatore per la deidrogenazione delle paraffine c3-c5 |
US4788371A (en) | 1987-12-30 | 1988-11-29 | Uop Inc. | Catalytic oxidative steam dehydrogenation process |
US4886928A (en) | 1988-09-26 | 1989-12-12 | Uop | Hydrocarbon dehydrogenation process |
US4914075A (en) | 1988-12-05 | 1990-04-03 | Uop | Dehydrogenation catalyst composition |
DK0403462T3 (da) * | 1989-05-12 | 1997-04-07 | Fina Research | Fremgangsmåde til katalytisk dehydrogenering af carnbonhydrider |
ES2081060T5 (es) * | 1991-11-21 | 1999-01-16 | Bp Chem Int Ltd | Proceso para deshidrogenar hidrocarburos e hidrocarburos oxigenados. |
GB9218823D0 (en) * | 1992-09-04 | 1992-10-21 | British Petroleum Co Plc | Dehydrogenation process |
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1999
- 1999-04-12 DK DK199900477A patent/DK199900477A/da not_active Application Discontinuation
-
2000
- 2000-03-15 ES ES00105498T patent/ES2216746T3/es not_active Expired - Lifetime
- 2000-03-15 DE DE60008615T patent/DE60008615T2/de not_active Expired - Lifetime
- 2000-03-15 EP EP00105498A patent/EP1044949B1/en not_active Expired - Lifetime
- 2000-03-15 AT AT00105498T patent/ATE260878T1/de not_active IP Right Cessation
- 2000-03-27 CA CA002302074A patent/CA2302074C/en not_active Expired - Fee Related
- 2000-03-28 US US09/536,582 patent/US6326523B1/en not_active Expired - Lifetime
- 2000-04-10 AU AU27629/00A patent/AU766556B2/en not_active Ceased
- 2000-04-11 NO NO20001874A patent/NO326149B1/no not_active IP Right Cessation
- 2000-04-11 RU RU2000108719/04A patent/RU2231517C2/ru not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
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EP1044949A1 (en) | 2000-10-18 |
DK199900477A (da) | 2000-10-13 |
AU766556B2 (en) | 2003-10-16 |
CA2302074C (en) | 2008-12-16 |
JP2000297048A (ja) | 2000-10-24 |
DE60008615T2 (de) | 2005-02-03 |
RU2231517C2 (ru) | 2004-06-27 |
KR20000071631A (ko) | 2000-11-25 |
KR100408740B1 (ko) | 2003-12-11 |
ATE260878T1 (de) | 2004-03-15 |
DE60008615D1 (de) | 2004-04-08 |
ES2216746T3 (es) | 2004-11-01 |
EP1044949B1 (en) | 2004-03-03 |
AU2762900A (en) | 2000-10-26 |
US6326523B1 (en) | 2001-12-04 |
NO20001874D0 (no) | 2000-04-11 |
NO326149B1 (no) | 2008-10-06 |
CN1179930C (zh) | 2004-12-15 |
CA2302074A1 (en) | 2000-10-12 |
NO20001874L (no) | 2000-10-13 |
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