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  Áõ·ùž condenser ¾Ð·Â¿¡ °üÇÑ ¹®Á¦Àä
  ±Û¾´ÀÌ : À±»ó¿¬   °íÀ¯ID : sangyeon123     ³¯Â¥ : 12-04-04 04:53     Á¶È¸ : 9873    
 
¾Æ Ç®´Ù°¡ µµÁ®È÷ ¸ð¸£°Ú¾î¼­ ´ä´äÇؼ­ Áö±Ý À̽ð£±îÁö ÀáÀÌ ¾È¿Í¼­ »ý°¢ÇÏ´Ù »ý°¢ÇÏ´Ù ¿©±â´Ù Áú¹®Çմϴ٤̤Ì
 
 
A saturated liquid mixture containing 60 mol% benzene and 40 mol% toluene is to be distilled to produce a saturated liquid distillate of 95% benzene and a bottom product of 90% toluene.
calculate
 
a. the pressure of the condenser when the temperature of a total condenser is at 90oC.

b. the temperature of the reboiler, allowing a 0.15 atm condenser pressure drop and a 0.35 atm pressure drop through the column.
 
c. the average relative volatility of this column.
 
 
Boiling Point (oC) Vapor Pressure (mmHg)
benzene 80.1 ln (Pv) = 15.9008 – 2788.51/(T(K)-52.36)
toluene  110.6 ln (Pv) = 16.0137 – 3096.52/(T(K)-53.67)
 
 
¹®Á¦´Â ÀÏ´Ü Àú·¸°Ô ÁÖ¾îÁ³´Âµ¥
¹®Á¦¿¡¼­ Feed¶û »ý»ê¹°ÀÌ ¸ðµÎ Æ÷È­¾×ü´Ï±î
a¹ø¿¡¼­ ¿Âµµ°¡ 90µµ¾¾À϶§ Áõ±â¾ÐÀÌ ¿ÜºÎ¾Ð·ÂÀ̶û °°´Ù´Â°É ÀÌ¿ëÇؼ­
Àú±â Àú Ç¥¾È¿¡ ÀÖ´Â °ø½ÄÀ» ÀÌ¿ëÇØ ¿ÜºÎ¾Ð·ÂÀ» ±¸Çϴ°Ŷó°í »ý°¢ÇÏ°í Àִµ¥
condenserÀÇ Àüü¾Ð·ÂÀ» ±¸ÇÏ·Á¸é 90µµ¿¡¼­ÀÇ º¥Á¨ÀÇ Áõ±â¾Ð+Åç·ç¿£ÀÇ Áõ±â¾ÐÀΰ¡¿ä
¾Æ´Ï¸é º¥Á¨ÀÇ Áõ±â¾Ð/0.95 Àΰ¡¿ä
¾Æ´Ï¸é ´Ù¸£°Ô °è»êÇؾßÇϳª¿ä?
 
b ¹ø¿¡¼­ ž¾Æ·¡ÀÇ ¾Ð·ÂÀÌ Å¾À§¿¡ ¾Ð·Âº¸´Ù ³ôÀ¸´Ï±î
a¹ø¿¡¼­ ±¸ÇØÁØ ¾Ð·Â¿¡´Ù°¡ 0.15+0.35 = 0.5atm ¸¸Å­ ´õÇØÁØ°Ô reboilerÀÇ Àüü ¾Ð·ÂÀε¥
¿©±â´Ù°¡ (1-0.9)= 0.1À» °öÇؼ­ º¥Á¨ÀÇ Áõ±â¾Ð½Ä¿¡ ´ëÀÔÇؼ­ ¿Âµµ¸¦ ±¸ÇØÁà¾ßÇϳª¿ä
¾Æ´Ï¸é º¥Á¨ÀÇ Áõ±â¾Ð½Ä+Åç·ç¿£ÀÇ Áõ±â¾ÐÀ» ´õÇÑ °ªÀÌ reboilerÀÇ ¾Ð·ÂÀ̶ó ³õ°í °è»êÇؾßÇϳª¿ä?
 
c ¹øÀº a,b¿¡¼­ ±¸ÇÑ ¿Âµµ¸¦ ÅëÇؼ­ žÀ§¿Í ž¾Æ·¡ »ó´ëÈֹߵµ¸¦ ±¸Çؼ­ Æò±Õ»ó´ëÈֹߵµ¸¦ ±¸Çϴ°Š¸Â³ª¿ä?
 
¾Æ µµÁ®È÷ ´äÀÌ ¾È³ª¿À´Â°Å °°¾Æ¼­ Áú¹®Çմϴ٤̤̤̤Ì
ÀÚ²Ù reboilerÀÇ ¿Âµµ°¡ ¸¶À̳ʽº °ªÀÌ ³ª¿Í¼­.....±×·³ Á¦ °è»êÀÌ Æ²¸°°Çµ¥ ¾Æ... ¿À´Ã ¾È¿¡ ²ÀÁ» ºÎŹµå¸³´Ï´Ù!!!!
³Ê¹« Ç®°í½Í½À´Ï´Ù!!!!!!!!!!!

½ºÅ×Æijë Stefano   12-04-06 20:44
(1) TopÀÇ »óºÎ(ȤÀº Condenser)³ª ÇϺο¡¼­ÀÇ ¾Ð·ÂÀº ±× À§Ä¡¿¡¼­ÀÇ ¾×»óÈ¥ÇÕ¹°ÀÇ Á¶¼º¿¡ ÀÇÇÑ Áõ±â¾Ð¿¡ ÀÇÇØ °áÁ¤µÇ´Âµ¥  ÁÖ¾îÁø ¹®Á¦¿¡¼­´Â Top¿¡¼­ 90 m% Benzene(B) 10 m% Toluene(T)ÀÇ Áõ±â¿Í ÆòÇüÀ» ÀÌ·ç°í ÀÖ´Â ¾×»óÀÇ Á¶¼ºÀ» ±¸ÇÏ¿©¾ß ÇÕ´Ï´Ù. 

Top Áõ±âÁß Benzene ³óµµ, 90 m% ¿Í ÆòÇüÀ» ÀÌ·ç´Â ¾×»óÁ¶¼ºÀº ¾Æ·¡ÀÇ °ü°è¼ö½ÄµéÀ» ÀÌ¿ëÇØ ±¸Çغ¸¼¼¿ä.

y1 = P1'(º¥Á¨ÀÇ Àý´ë¿Âµµ T¿¡¼­ÀÇ Áõ±â¾Ð) *(ÆòÇü ¾×»óÀÇ º¥Á¨ ¸ôºÐÀ² x1)/(ÀüÁ¦ ¾Ð·Â P) ......1= Benzene, 2= Toluene,

P=ÀüüÀÇ ¾Ð·Â = (±â»óÀÇ º¥Á¨ºÐ¾Ð P1)+(±â»óÀÇ Åç·ç¿£ ºÐ¾Ð P2)
= (º¥Á¨ Áõ±â¾Ð P'1 * º¥Á¨ ¾×»ó¸ôºÐÀ² x1) + (Åç·ç¿£ Áõ±â¾Ð P'2 * Åç·ç¿£ ¾×»ó ¸ôºÐÀ² x2)

y1+y1=x1+x2=1

(2) ¼ø¼ö ¹°ÁúÀÇ Vapor Pressure¸¦ ±¸ÇÏ´Â ¼ö½ÄÀº Antoine ¼ö½ÄÀ¸·Î ºÎÅÍ ±¸ÇÏ¸é µÇ´Âµ¥  ÁÖ¾îÁø ¼ö½ÄÀº mm Hg ´ÜÀ§·Î °è»êµË´Ï´Ù.   

º¥Á¨Áõ±â¾ÐÀÇ °æ¿ì.. P1v =  exp{15.9008 – 2788.51/(T(K)-52.36)} = 2^{15.9008 – 2788.51/(T(K)-52.36)} mm Hg, T´Â Àý´ë¿Âµµ¸¦ »ç¿ëÇ϶ó´Â ±º¿ä.

¸¶Âù°¡Áö·Î Åç·ç¿£ÀÇ Áõ±â¾Ðµµ ±¸ÇÒ ¼ö Àִµ¥ ½Ã½ºÅÛ ¾Ð·ÂÀ» ¸ÕÀú Á¤ÇØµÎ°í ¿Âµµ¸¦ ³ªÁß¿¡ ã¾Æ³»¾ß Çϱ⠶§¹®¿¡ ½ÃÇà¿ÀÂ÷¹æ¹ýÀÌ »ç¿ëµÇ¾î¾ß ÇÕ´Ï´Ù.
À±»ó¿¬ sangyeon123   12-04-07 14:55
°¨»çÇÕ´Ï´Ù!!!!!! ´öºÐ¿¡ Àß Ç®¾ù¾î¿©!!! ½ºÅ×Æijë´Ô ÃÖ°í¿¡¿ä!!!!!!! ¿­°øÇÏ°Ù½À´Ï´Ù!!!! ´ÙÀ½¿¡ ¸ð¸£´Â°ÅÀÖÀ¸¸é ¶Ç Áú¹®µå¸±°Ô¿ä!!!!!!!! °¨»çÇØ¿ä!!!! ^^
   

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