JP2004307450A5 - - Google Patents
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- JP2004307450A5 JP2004307450A5 JP2003136581A JP2003136581A JP2004307450A5 JP 2004307450 A5 JP2004307450 A5 JP 2004307450A5 JP 2003136581 A JP2003136581 A JP 2003136581A JP 2003136581 A JP2003136581 A JP 2003136581A JP 2004307450 A5 JP2004307450 A5 JP 2004307450A5
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- chromium
- oxygen
- catalyst
- alkane
- described method
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Description
【特許請求の範囲】
【請求項１】 約４００℃から７００℃の温度、約０．１から約１０気圧の圧力において分子状酸素の存在下で、アルカンと酸素のモル比を約１：０．０００１から１：０．０４にて、アルカンを１０〜２０重量％のクロムを含むクロム系脱水素触媒と接触させることを含む、アルカン脱水素方法。
【請求項２】 前記アルカンがイソブタンである、請求項１記載の方法。
【請求項３】 前記触媒がクロムを１２〜１８重量％含む、請求項１記載の方法。
【請求項４】 当該アルカンがイソブタンであり、当該温度が約５００℃から約６５０℃である、請求項３記載の方法。
【請求項５】 当該アルカンがイソブタンであり、当該温度が約５６０℃から約６００℃である、請求項３記載の方法。
【請求項６】 当該アルカン脱水素を固定床触媒、移動床触媒または流動床触媒において実施する、請求項１記載の方法。
【請求項７】 前記の接触は不活性希釈剤の存在下で行う、請求項１記載の方法。
【請求項８】 当該アルカンがイソブタンであり、当該不活性希釈剤がメタン、エタン、プロパン、窒素または蒸気を含む、請求項７記載の方法。
【請求項９】 前記の接触はメタン、エタン、プロパン、窒素または蒸気の存在下で行う、請求項４記載の方法。
【請求項１０】 前記の接触はメタン、エタン、プロパン、窒素または蒸気の存在下で行う、請求項５記載の方法。
【請求項１１】 当該アルカンと酸素のモル比は約１：０．００１から１：０．０４である、請求項１記載の方法。
【請求項１２】 当該アルカンと酸素のモル比は約１：０．０１から１：０．０３５である、請求項１記載の方法。
【請求項１３】 当該アルカンと酸素のモル比は約１：０．０１から１：０．０３５である、請求項４記載の方法。
【請求項１４】 前記触媒中のクロムの量に対する酸素存在量は、当該触媒中のクロムのグラム当たり酸素約０．０００１から０．００１モルである、請求項３記載の方法。
【請求項１５】 前記触媒中のクロムの量に対する酸素存在量は、当該触媒中のクロムのグラム当たり酸素約０．０００２から０．０００８モルである、請求項４記載の方法。
【請求項１６】 前記触媒中のクロムの量に対する酸素存在量は、当該触媒中のクロムのグラム当たり酸素約０．０００１から０．００１モルである、請求項５記載の方法。
【請求項１７】 前記触媒中のクロムの量に対する酸素存在量は、当該触媒中のクロムのグラム当たり酸素約０．０００１から０．００１モルである、請求項１２記載の方法。
[Claims]
1. The method according to claim 1, wherein the molar ratio of alkane to oxygen is from about 1: 0.0001 to 1: 0 in the presence of molecular oxygen at a temperature of about 400 ° C. to 700 ° C. and a pressure of about 0.1 to about 10 atmospheres. At .04,AlkanesContains 10-20% by weight chromiumAn alkane dehydrogenation method comprising contacting with a chromium-based dehydrogenation catalyst.
2. The method of claim 1 wherein said alkane is isobutane.
3. The catalyst comprises chromium.12~182. The method of claim 1, wherein the method comprises weight percent.
(4) The alkane is isobutane and the temperature is from about 500 ° C. to about 650 ° C., Claims3The described method.
(5) The alkane is isobutane,The temperature is about560℃ to about600C.3The described method.
6. Performing the alkane dehydrogenation on a fixed, moving or fluidized bed catalyst, Claims1The described method.
7. Said contacting is performed in the presence of an inert diluentThe method of claim 1.
8. The alkane is isobutane and the inert diluent contains methane, ethane, propane, nitrogen or steam, Claims7The described method.
9. Said contacting is performed in the presence of methane, ethane, propane, nitrogen or steam, Claims4The described method.
10. The method of claim 1, wherein said contacting is performed in the presence of methane, ethane, propane, nitrogen or steam.5The described method.
11. The molar ratio of the alkane to oxygen is from about 1: 0.001 to 1: 0.04, Claims1The described method.
12. The alkane to oxygen molar ratio of about 1:0.01From 1:0.035The method of claim 1, wherein
13. The alkane to oxygen molar ratio of about 1: 0.01 to 1: 0.035.4The described method.
14. The amount of oxygen present relative to the amount of chromium in the catalyst is about 0.0001 to 0.001 mole of oxygen per gram of chromium in the catalyst., Claims3The described method.
15. The oxygen abundance relative to the amount of chromium in said catalyst is between about oxygen per gram of chromium in said catalyst.0.0002From0.00085. The method of claim 4, wherein the method is molar.
16. The oxygen abundance relative to the amount of chromium in said catalyst is about oxygen per gram of chromium in said catalyst.0.0001From0.001Is a mole5The described method.
17. The oxygen abundance based on the amount of chromium in the catalyst is about 0.0001 to 0.001 mole of oxygen per gram of chromium in the catalyst.12The described method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003136581A JP4406541B2 (en) | 2003-04-08 | 2003-04-08 | Dehydrogenation process for olefins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003136581A JP4406541B2 (en) | 2003-04-08 | 2003-04-08 | Dehydrogenation process for olefins |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004307450A JP2004307450A (en) | 2004-11-04 |
| JP2004307450A5 true JP2004307450A5 (en) | 2006-04-20 |
| JP4406541B2 JP4406541B2 (en) | 2010-01-27 |
Family
ID=33474880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003136581A Expired - Fee Related JP4406541B2 (en) | 2003-04-08 | 2003-04-08 | Dehydrogenation process for olefins |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4406541B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5061852B2 (en) * | 2007-03-26 | 2012-10-31 | 三菱化学株式会社 | Alkene production method |
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2003
- 2003-04-08 JP JP2003136581A patent/JP4406541B2/en not_active Expired - Fee Related
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