分离工程试题� - 百度文库

²éµÃK¹Ø=0.56 £¨P-T-Kͼ£©

¢ÙÔÚ×îÐ¡ÒºÆø±ÈÏ N=¡Þ£¬A¹Ø=ÖйØ=0.9

£¨L£©?K¹Ø?A¹ØVmin=0.56 ?0.9=0.504

¢Ú.VL?1.£¨1L£©Vmin=1.1?0.504=0.5544 A¹Ø?L0.5544??0.99K¹ØV¹Ø0.56log£¨N?ËùÒÔ ÀíÂÛ°åÊýΪ

A??0.99?0.9£©log£¨£©1??1?0.9?1??1?9.48logAlog0.99

AiN?1?AL¢ÛËü×é·ÖÎüÊÕÂʹ«Ê½ Ai?£¬?i?N?1

VKiAi?1¼ÆËã½á¹ûÈçÏ£º ×é·Ö ½øÁÏÁ¿ ÏàÆ½ºâ³£ÊýKi Ai?i±»ÎüÊÕÁ¿ Ëþ¶¥Î²Æø ÊýÁ¿ 74.05 3.834 2.009 0.250 0.045 0.0 0.0 0.0 ×é³É 0.923 0.048 0.025 0.003 0.0006 0.0 0.0 0.0 CH4 C2H6 C3H8 76.5 4.5 3.5 17.4 3.75 1.3 0.56 0.4 0.18 0.144 0.056 ¡ª 0.032 0.032 2.448 0.148 0.148 0.668 0.426 0.426 1.491 0.99 0.90 2.250 4.455 1.500 2.500 4.500 19.810 i-C4H10 2.5 n-C4H10 4.5 i-C5H12 1.5 n-C5H12 2.5 n-C6H14 4.5 ºÏ¼Æ 100.0 1.386 0.99 3.08 3.85 9.9 ¡ª 1.00 1.00 1.00 ¡ª 80.190 ÒÔCH4ΪÀý£º Ai=

L0.5544??0.032VKi17.4

?0.0329.48?1?0.99?0.329.48?1i0.032?1=

V1£¨CH4£©=£¨1-

y£¨1CH4£©?V£¨1CH4£©V1??i£©VN+1=£¨1-0.032£©?76.5=74.05

74.05?0.92376.5v?¢ÜËþÄÚÆøÌ寽¾ùÁ÷ÂÊ£º

100?80.190?90.102Kmol/h

ËþÄÚÒºÌ寽¾ùÁ÷ÂÊ£ºL=

L0?£¨L0?19.81£©?L0?9.9052

LÓÉv=0.5544£»?0=40.05Kmol/h

l9. ÒÑ֪ij»ìºÏ0.05ÒÒÍé,0.30±ûÍé0.65Õý¶¡Íé(Ħ¶û·ÖÂÊ),²Ù×÷ѹÁ¦Ï¸÷×é·ÖµÄƽºâ³£Êý

¿É°´ÏÂʽ½øÐмÆËã,ÊÔÇóÆä¶µãζÈ. ÒÒÍé:K=0.13333t+46667 ±ûÍ飺 k=0.6667t+1.13333

Õý¶¡Í飺 k=0.02857t+0.08571 (tµÄµ¥Î»Îª¡æ) ÉèζÈΪ24¡æ£¬ÓÃÅݵ㷽³Ì¡Æyi/Ki=1 ½øÐÐÊԲ²»Âú×㶵㷽³Ì£¬ÉèζÈΪ 23¡æ£¬

ÖØÐÂÊԲÂú×㶵㷽³Ì£¬Â¶µãζÈΪ23¡æ,½á¹û¼û±í¡£ ×é·Ý ÒÒÍé ±ûÍé Õý¶¡Íé ¦² 0.05 0.30 0.65 1.00 ÉèζÈΪ24¡æ ×é·Ý Ki 8.6666 2.7334 0.7714 Kixi 0.006 0.110 0.843 0.959 ÉèζÈΪ23¡æ Ki 8.5333 2.6667 0.7428 Kixi 0.006 0.112 0.875 0.993 Ô²Õû 0.006 0.113 0.881 1.000 10. Ò»ÇáÌþ»ìºÏÎï½øÐо«ÁóËþµÄ¼ÆË㣬ÇóµÃÑôС»ØÁ÷±ÈRm=1.45,×îСÀíÂÛ°åÊý

Nm=ÇóµÃ×îС»ØÁ÷»¯ÎªR=1.25Rm,È«Ëþƽ¾ù°åЧÂÊΪn£½0.60£¬ÇóËùÐè×îСËþ°å°åÊý¡£

R£½1.25¡Á1.45=1.8125

ÓÉ´Ëͼ²é£¬µÃ£º

ÓÉÓÚ£¬Nm£½8.6ËùÒÔ£¬N£½19.43 ʵ¼Ê°åÊýΪ£º19.43/0.6=32.4=33¿é

11. ij¶à×é·Ö¾«ÁóËþµÄÔ­ÁÏ×é³É¡¢²úÆ·×é³É£¨×é·Ö1ΪÇá¹Ø¼ü×é·Ö£©¼°¸÷×é·ÖµÄÏà¶Ô»Ó½¨·¢¶ÈÈç±íËùʾ£¬ÒÑÖªÌáÁó¶ÎµÚn°åÉÏÉýµÄÆøÏà×é³É,ÌáÁó¶Î²Ù×÷Ïß·½³ÌΪ,¾«Áó¶Î²Ù×÷Ïß·½³ÌΪxn,i=1.2yn-1,i-0.2xD,i ÊÔÇóÀ뿪µÚn+2°åµÄÒºÏà×é³É.(ÒªÇó¸÷°å×é³ÉÁбí)(ËþÐò´ÓÏÂÍùÉÏ,µÚn+1°åΪ½øÁϰå).

(1)ÓÃÌáÁó¶Î²Ù×÷Ïß·½³Ìxni=0.8yn-1,i+0.2xWi¼ÆËãx'n+1,i ,¼´

xn+1,1=0.8¡Á0.473+0.2¡Á0.013=0.381 ÆäËû×é·ÖµÄ¼ÆËã½á¹ûÁÐÓÚ±í¡£. (2)ÓÃÏàÆ½ºâ·½³Ì

¼ÆËãy'n+1,i¼ÆËã½á¹ûÁÐÓÚ±í.

(3)ÓÉÓÚµÚn+1°åΪ½øÁϰåΪ½øÁϰå,ËùÒÔ,Óþ«Áó¶Î²Ù×÷Ïß·½³Ì¼ÆËãxn+2,I,¼´ ÆäËû×é·ÖµÄ¼ÆËã½á¹ûÁÐÓÚ±í¡£ (4)¼ÆËã½á¹û»ã×Ü

xn+1,i ¦Áx'n+1,i y'n+1,i x'n+2,i xn+2,i

1 0.3810 0.9335 0.6223 0.5004 0.5508 2 0.5234 0.5234 0.3489 0.4097 0.4147 3 0.0502 0.0246 0.0164 0.0465 0.0197 4 0.0454 0.0186 0.0124 0.0434 0.0149 ¡Æ 1.0000 1.5000

12. ij³§ÁÑ½âÆø×é³É£¨Ä¦¶û%£©ÈçÏ£º13.2%Çâ¡¢37.18%¼×Íé¡¢30.2ÒÒÏ©¡¢9.7%ÒÒÍé¡¢8.4% ±ûÏ©¡¢1.32Òì¶¡Íé¡¢ËùÓõÄÎüÊÕ¼ÁÖв»º¬ËùÎüÊÕ×é·Ö¡£ÒªÇóÒÒÏ©µÄ»ØÊÕÂÊ´ïµ½99%¡£¸ÃÎüÊÕËþ´¦ÀíµÄÆøÌåÁ¿Îª100kmo1/h£¬²Ù×÷Ìõ¼þϸ÷×é·ÖµÄÏàÆ½ºâ³£ÊýÈçÏ£º

Çâ ¼×Íé ÒÒÏ© ÒÒÍé ±ûÍé Òì¶¡Íé

¡Þ 3.1 0.72 0.52 0.15 0.058

²Ù×÷񼮿»¯Îª×îÐ¡ÒºÆø±ÈµÄ1.5±¶ ÊÔÇó: (1) ×îÐ¡ÒºÆø»¯;

(2) ËùÐèÀíÂÛ°åÊý;

(3) ¸÷×é·ÝµÄÎüÊÕÒò×Ó¡¢ÎüÊÕÂÊ (4) Ëþ¶¥Î²ÆøµÄ×é³É¼°ÊýÁ¿£» (5) Ëþ¶¥Ó¦¼ÓÈëµÄÎüÊÕ¼ÁÁ¿ ½â£º(1) ×îÐ¡ÒºÆø»¯

(2)ËùÐèÀíÂÛ°åÊýN

(3)¸÷×é·ÝµÄÎüÊÕÒò×Ó¡¢ÎüÊÕÂÊ ÎüÊÕÒò×Ó£¬ÒÔ¼×ÍéΪÀý£º

ÎüÊÕÂÊ£¬ÒÔ¼×ÍéΪÀý£º

(4)Ëþ¶¥Î²ÆøµÄ×é³É¼°ÊýÁ¿£¨¼û±í£©

¦ÍN+1 A ¦Õ ¦ÍN+1¦Õ ¦Í1 H 13.2 0 0 0 13.2 C10 37.2 3.449 0.34 12.64 24.56 C2= 30.2 1.485 0.99 29.90 0.030 C20 9.7 2.058 0.9982 9.68 0.020 C3= 8.4 7.128 1.000 8.40 0.00 iC40 1.32 18.48 1.000 1.32 0.00

y1

34.68 64.48 0.79 0.05 0.00 0.00

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ìæ»»Îª@)