| ²é¿´: 185 | »Ø¸´: 5 | |||
| µ±Ç°Ö÷ÌâÒѾ´æµµ¡£ | |||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |||
huxy3321ľ³æ (СÓÐÃûÆø)
|
[½»Á÷]
Çóһƪ¹ýÆÚÎÄÏ×£¬ÓÐЧÆÚÖÁ11ÔÂ30ÈÕ
|
||
|
ƪÃû£ºOn the formation of methane and hydrogen during cracking of alkanes Journal of Molecular Catalysis Volume 32, Issue 3, 15 August 1985, Pages 365-375 ÕâÆªÎÄÕÂËÓа¡£¬Ñ§Ð£Í¼Êé¹ÝûÓÐÈ«ÎÄ¡£Òªµç×Ӱ棬»òÕßɨÃèºóµÄ°æ±¾¶¼¿ÉÒÔ£¬È«ÎÄŶ£¬ ллÀ² [ Last edited by huxy3321 on 2008-11-15 at 09:47 ] |
» ²ÂÄãϲ»¶
ת³¤Æ¸ÁË
ÒѾÓÐ7È˻ظ´
085400µç×ÓÐÅÏ¢Àࣨ´¨´ó¿ØÖƹ¤³Ì£©Çóµ÷¼Á¿É¿çרҵ ÇóÀÏʦÁªÏµ
ÒѾÓÐ4È˻ظ´
Çóµ÷¼Á
ÒѾÓÐ13È˻ظ´
ҩѧÇóµ÷¼Á
ÒѾÓÐ6È˻ظ´
327Çóµ÷¼Á
ÒѾÓÐ24È˻ظ´
284Çóµ÷¼Á
ÒѾÓÐ17È˻ظ´
¿¼Ñе÷¼Á
ÒѾÓÐ14È˻ظ´
RY£ºÖйú²ú³öµÄ¿ÆÑ§À¬»øÂÛÎÄ£¬¾ø¶ÔÊýÁ¿ºÍ±ÈÀý¶¼ÊÀ½çµÚÒ»
ÒѾÓÐ17È˻ظ´
085404 22408 309·ÖÇóµ÷¼Á
ÒѾÓÐ4È˻ظ´
Çóµ÷¼Á
ÒѾÓÐ16È˻ظ´
²Îµ°
ľ³æ (ÕýʽдÊÖ)
Ç§ÔØÌ«ÐéÎÞ·ÇÃÎ
- Ó¦Öú: 5 (Ó×¶ùÔ°)
- ½ð±Ò: 4043.6
- É¢½ð: 1153
- Ìû×Ó: 587
- ÔÚÏß: 166.7Сʱ
- ³æºÅ: 314131
- ×¢²á: 2007-02-24
- רҵ: ÉúÎﻯ¹¤ÓëʳƷ»¯¹¤
¡ï ¡ï ¡ï ¡ï
huxy3321(½ð±Ò+4,VIP+0):ÕýÊÇÎÒÒªÕҵģ¬Ð»Ð»À²
huxy3321(½ð±Ò+4,VIP+0):ÕýÊÇÎÒÒªÕҵģ¬Ð»Ð»À²

5Â¥2008-11-15 10:19:46
steaven163
ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 4538.6
- É¢½ð: 3219
- ºì»¨: 7
- Ìû×Ó: 1624
- ÔÚÏß: 184.5Сʱ
- ³æºÅ: 505303
- ×¢²á: 2008-02-17
- ÐÔ±ð: GG
- רҵ: »·¾³¹¤³Ì
¡ï
huxy3321(½ð±Ò+1,VIP+0):ËäÈ»²»ÊÇÈ«ÎÄ£¬ÒÀ¾É±íʾ¸Ðл
huxy3321(½ð±Ò+1,VIP+0):ËäÈ»²»ÊÇÈ«ÎÄ£¬ÒÀ¾É±íʾ¸Ðл
|
Abstract A qualitative explanation of the low dehydrogenation/cracking ratio observed in reactions with long-chain n-alkanes catalyzed by superacids is attempted via calculation of the MINDO/3 reaction profiles for the complete dehydrogenation intermolecular interconversion cracking (D.I.C.) set of unimolecular processes that a protonated n-alkane can undergo. It is shown that the three simplest systems can suitably model all possible D.I.C. surfaces that can be found in a long-chain linear alkane. The importance of the primary protonation site in the distribution of products is discussed. Some experimental results from cracking of n-heptane over a set of acid zeolites are used, together with those of this theoretical study, to show that a recent controversy about the presence of methane and hydrogen as primary or secondary products in saturated alkane cracking catalyzed by zeolites can be settled. ºÇºÇ£¬Ö»ÕÒµ½ÕªÒª |
2Â¥2008-11-15 10:01:19
huxy3321
ľ³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 4893.9
- É¢½ð: 2
- Ìû×Ó: 197
- ÔÚÏß: 485.6Сʱ
- ³æºÅ: 582313
- ×¢²á: 2008-07-25
- ÐÔ±ð: MM
- רҵ: ÄÜÔ´»¯¹¤
4Â¥2008-11-15 10:14:41














»Ø¸´´ËÂ¥