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222222222222222 - FCC FCC FCC FCC FCC [email protected] 1...

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Unformatted text preview: * FCC . . FCC . FCC : . FCC FCC . .[ ] abtin_e_a @yahoo.com 1 Fluidization * . . .[ ] . . FCC FCC " . . . [ ]. . . . 1 Fixed bed Expanded bed 3 Impact 2 T Ts . . " . " . . Ts (T) T1 Ts T . Push Back ( ). T1 [ . T1 () : () : Ø Ø . Push Back : () : () () : () 1 Push Back : () : () . . : () :‫ن‬ ‫در‬ () : ( ( ( 1 Collision Inert Heating Model 3 lVaporization Mode 4 Boiling Model 2 . () . () : () . . () : () : () : () : . A=3676.24 () : () . . () . () : () ( Ø . Ø ) Ø . Ø Ø . Ø . . Ø Ø . FCC FCC t . . [ ]: (٢ ) ( . . ) P (bar) . (bar) . / . : () ( ) ( ) () . : () () ( ( (Z/L) ) ) . : . . ( . ( . % . . . . .( . ). FCC FCC . FCC : FCC . (WSD)٣ (NSD) 1 Particle Size Mixing Bihavior 3 Wide Size Distribution 4 Normal Size Distribution 2 – (١ ٤ (٢ . % WSD " , . . . FCC Gs (Axial Peclet Number) Pe a . . [ ] NSD Pea WSD Pea Pea NSD . NSD . WSD WSD WSD WSD WSD . NSD WSD . 1 Phosphor Tracer Laterial Mixing 3 Fluidized 4 Circulation rate 2 . . . NSD WSD NSD FCC – . . . 1- Daizo Kunii Octave Levenspiel “Fluidization Engineering Second Edition” BH publication. 2- Subramanya V. Nayak, Saket L. Joshi, Vivek V. Ranade Modeling ofv aporization and cracking ofliquid oil injected in a gas–solid riser , Chemical Engineering Science 60 (2005) 6049 – 6066. 3- Hui’e Liu, Fei Wei*, Yanhui Yang, Yong Jin , Mixing behavior of wide-size-distribution particles in a FCC riser , Powder Technology 132 (2003) 25– 29. 4- In-Su Han a, Chang-Bock Chung b,*, James B. Riggs , Modeling of a fluidized catalytic cracking process , Computers and Chemical Engineering 24 (2000) 168 1 – 1687. 5- Vishnu K. Pareek, Adesoji A. Adesina, Anurag Srivastava, Raj Sharma , isothermal FCC riser , Chemical Engineering Journal 92 (2003) 101–109. Modeling of a non- 6- Hashem Sabbaghan, Rahmat Sotudeh-Gharebagh*, Navid Mostoufi , Modeling the acceleration zone in the riser of circulating fluidized beds , Powder Technology 142 (2004) 129– 135. ...
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