| ²é¿´: 570 | »Ø¸´: 2 | ||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | ||
ankang276½ð³æ (ÕýʽдÊÖ)
|
[ÇóÖú]
Çë°ïæ·ÒëÕâ¶Î»°£¬·Ç³£¸Ðл£¡
|
|
|
Clearly, there was no significant change in the zeolite micropore size distribution upon addition of Mg, although there was a small reduction in micropore volume (Table 1).The pore size distribution data of Fig. 2 shows the reduced volume associated with the mesopores in the range 30¨C50 Å for the 2%Mg¨CMo2C/HY compared to the Mo2C/HY and the HY alone. Together these data suggest that the MgO/K2O (the metal oxides formed during calcination) are located throughout the zeolite mesopores outside of the zeolite micropores. The size of the Mo2Ccrystallites (Table 1) confirm that the Mo2C was located outside of the zeolite micropores and so the reduction in the micropore volume must be due to pore-mouth blocking by Mo2C or MgO/K2O crystals. |
slz146
ľ³æ (ÕýʽдÊÖ)
- ·ÒëEPI: 75
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.055
- ½ð±Ò: 1657.8
- É¢½ð: 966
- ºì»¨: 7
- Ìû×Ó: 713
- ÔÚÏß: 225.5Сʱ
- ³æºÅ: 1097156
- ×¢²á: 2010-09-13
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï
°®ÓëÓêÏÂ(½ð±Ò+1): ¼ÓÓÍ£¡~ 2011-08-10 11:15:27
°®ÓëÓêÏÂ(½ð±Ò+1): ¼ÓÓÍ£¡~ 2011-08-10 11:15:27
| ËäÈ»Óɱí1ÖÐ΢¿×¿×ÈÝÖпÉÒÔÇå³þµÄ¿´µ½ÆäÓнÏСµÄ¼õÉÙ£¬µ«ÊÇÔÚÌí¼ÓMgÖ®ºó·Ö×ÓɸµÄ΢¿×¿×¾¶·Ö²¼²¢Ã»ÓÐÃ÷ÏԵı仯¡£ ͼ2µÄ¿×¾¶·Ö²¼Êý¾Ý±íÃ÷½é¿×Ëù¼õÉٵĿ×ÈÝÔÚ30¨C50 ·¶Î§ÄÚ£»¶ÔÓÚ2%Mg¨CMo2C/HY ÒÔ¼°Mo2C/HYºÍµ¥¶ÀHYÀ´½²£¬ËùÓеÄÊý¾Ý¶¼±íÃ÷ MgO/K2O £¨ÔÚìÑÉÕ¹ý³ÌÖÐËùÐγɵĽðÊôÑõ»¯Î¾Í´æÔÚÓÚ·Ö×ÓɸµÄ½é¿×ÖУ¬Î¢¿×ÒÔÍâ¡£Mo2C¾§°ûµÄÁ£¾¶£¨±í1£©±íÃ÷Mo2C´æÔÚÓÚ·Ö×ÓɸµÄ΢¿×Ö®Í⣬ËùÒÔÆä΢¿×¿×ÈݵļõÉٿ϶¨ÊÇÓÉÓÚ Mo2C »òMgO/K2O¾§Ìå¶ÂÈûÔÚ¿Õ¿Úµ¼Öµġ£ |
2Â¥2011-08-10 10:06:43
Eric.Rainman
ľ³æ (ÕýʽдÊÖ)
- ·ÒëEPI: 1
- Ó¦Öú: 10 (Ó×¶ùÔ°)
- ½ð±Ò: 3638.9
- É¢½ð: 1200
- ºì»¨: 1
- Ìû×Ó: 680
- ÔÚÏß: 96.7Сʱ
- ³æºÅ: 955658
- ×¢²á: 2010-02-15
- ÐÔ±ð: GG
- רҵ: ʳƷ¼Ó¹¤¼¼Êõ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï
°®ÓëÓêÏÂ(½ð±Ò+1): ¹ÄÀøÐ³棡~ 2011-08-10 11:15:05
ankang276(½ð±Ò+40, ·ÒëEPI+1): 2011-08-10 11:22:40
°®ÓëÓêÏÂ(½ð±Ò+1): ¹ÄÀøÐ³棡~ 2011-08-10 11:15:05
ankang276(½ð±Ò+40, ·ÒëEPI+1): 2011-08-10 11:22:40
| ÏÔ¶øÒ×¼û£¬µ±Ìí¼ÓMgºó£¬·Ðʯ΢¿×Ìå»ýËäÉÔ΢¼õС£¬µ«Æä³ß´ç·Ö²¼Î´·¢ÉúÏÔÖø±ä»¯£¨¼û±í1£©¡£ÔÚ±í2ÖУ¬Í¨¹ý±È½Ï2% Mg¨CMo2C/HY ×éÓëMo2C/HYºÍHY×éµÄ΢¿×³ß´ç·Ö²¼Êý¾Ý£¬¿ÉµÃ³ö½á¹û£ºÎ¢¿×µÄ´óСÓë30-50 Å£¨Â¥Ö÷£¬Õâ¸öÓ¦¸ÃÊǵ¥Î»°É£¬ÎÒû¼û¹ý£©µÄ½é¿×Ïà¹Ø¡£ÕâЩÊý¾Ý¶¼±íÃ÷ÔÚ·Ðʯ΢¿×ÍâµÄ·Ðʯ½é¿×ÖÜΧ¶¼·Ö²¼ÓÐMgO/K2O £¨ìÑÉÕÖÐÉú³ÉµÄ½ðÊôÑõ»¯Î¡£Mo2C΢¾§µÄ³ß´ç£¨±íÒ»£©Ö¤ÊµÁËMo2CÔÚ·Ðʯ΢¿×ÍâµÄ´æÔÚ£¬¹Ê΢¿×Ìå»ýµÄ¼õС¶¨ÊÇMo2C»òMgO/K2O¶ÂÈû΢¿×¿ÚËùÖ¡£ |

3Â¥2011-08-10 10:17:45














»Ø¸´´ËÂ¥