HEMISKI Zbirka re{eni zada~i REAKTORI 3

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[esti del. Industriski reaktori Toi 689.54414 689.54414 689.54414 689.54414 T 689.54414 689.54414 708.10078 708.10078 CB 11.234203 11.234203 12.199711 12.199711 k1 4.877E-07 4.877E-07 6.363E-07 6.363E-07 K 1.23598 1.1238793 1.23598 1.1238793 CA 39.830356 37.52664 39.830356 37.52664 R 7.238E-04 7.238E-04 8.118E-04 8.118E-04 ODE Report (RKF45) Differential equations as entered by the user [1] d(X)/d(t) = R/FAo Explicit equations as entered by the user [1] FAo = 20 [2] FI = 1.05 [3] n = 8 [4] FToi = 20+n*FI [5] Toi = (FI*298+(27.35*704.576))/FToi [6] T = Toi+(20800/FToi)*(X-0.22) [7] CB = (FAo/FToi)*(5*(10^4)/Toi)*X/(T/Toi) [8] k1 = 0.0125*exp(-7000/T) [9] K = 145.3*exp(-8.395*(T-298)/T) [10] CA = (FAo/FToi)*(5*(10^4)/Toi)*(1-X)/(T/Toi) [11] R = k1*((CA^2)-((CB^2)/K)) Devettiot segment: POLYMATH Results Calculated values of the DEQ variables Variable initial value minimal value maximal value final value t 0 0 660 660 X 0.245 0.245 0.2672067 0.2672067 FAo 20 20 20 20 FI 1.05 1.05 1.05 1.05 n 9 9 9 9 FToi 29.45 29.45 29.45 29.45 Toi 693.47844 693.47844 693.47844 693.47844 T 693.47844 693.47844 709.16263 709.16263 CB 11.996314 11.996314 12.79429 12.79429 k1 5.166E-07 5.166E-07 6.458E-07 6.458E-07 K 1.2107998 1.1179497 1.2107998 1.1179497 CA 36.968233 35.087332 36.968233 35.087332 R 6.446E-04 6.446E-04 7.005E-04 7.005E-04 ODE Report (RKF45) Differential equations as entered by the user [1] d(X)/d(t) = R/FAo 467
Explicit equations as entered by the user [1] FAo = 20 [2] FI = 1.05 [3] n = 9 [4] FToi = 20+n*FI [5] Toi = (FI*298+(28.4*708.1))/FToi [6] T = Toi+(20800/FToi)*(X-0.245) [7] CB = (FAo/FToi)*(5*(10^4)/Toi)*X/(T/Toi) [8] k1 = 0.0125*exp(-7000/T) [9] K = 145.3*exp(-8.395*(T-298)/T) [10] CA = (FAo/FToi)*(5*(10^4)/Toi)*(1-X)/(T/Toi) [11] R = k1*((CA^2)-((CB^2)/K)) Desettiot segment: POLYMATH Results Calculated values of the DEQ variables Variable initial value minimal value maximal value final value t 0 0 660 660 X 0.267 0.267 0.2861111 0.2861111 FAo 20 20 20 20 FI 1.05 1.05 1.05 1.05 n 10 10 10 10 FToi 30.5 30.5 30.5 30.5 Toi 695.00724 695.00724 695.00724 695.00724 T 695.00724 695.00724 708.04036 708.04036 CB 12.595694 12.595694 13.248808 13.248808 k1 5.282E-07 5.282E-07 6.357E-07 6.357E-07 K 1.2012297 1.1242182 1.2012297 1.1242182 CA 34.579189 33.057712 34.579189 33.057712 R 5.618E-04 5.618E-04 5.955E-04 5.955E-04 ODE Report (RKF45) Differential equations as entered by the user [1] d(X)/d(t) = R/FAo Explicit equations as entered by the user [1] FAo = 20 [2] FI = 1.05 [3] n = 10 [4] FToi = 20+n*FI [5] Toi = (FI*298+(29.45*709.162))/FToi [6] T = Toi+(20800/FToi)*(X-0.267) [7] CB = (FAo/FToi)*(5*(10^4)/Toi)*X/(T/Toi) [8] k1 = 0.0125*exp(-7000/T) [9] K = 145.3*exp(-8.395*(T-298)/T) [10] CA = (FAo/FToi)*(5*(10^4)/Toi)*(1-X)/(T/Toi) [11] R = k1*((CA^2)-((CB^2)/K)) 468
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HEMISKI REAKTORI 3 Zbirka re{eni za
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Skopje, 2010
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Predgovor . . . Hemiskiot reaktor e
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lot da se stekne so ve{tina da gi k
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~ite }e mu ovozmoì preku niv da go
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5. TOPLINSKI BILANSI ..............
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XIV êtvrti del IDEALEN CEVEN REAKT
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Zada~a 4. Adijabatski PBR so pretho
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1. STEHIOMETRIJA 1.1. Prost reakcio
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Prv del. Definicii, koncepti, stehi
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2. TOPLINA NA REAKCIJA I HEMISKA RA
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3. IZRAZI ZA BRZINA NA REAKCIJA 3.1
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Molskite koncentracii vklu~eni vo b
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kako ravenkata (52). Razlikata e vo
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Ravenkite za dizajn na cevniot reak
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Ravenkata za dizajn na ceven reakto
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Za presmetka na brojot na reaktorit
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28 Po~eten uslov za re{avawe na sis
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Toplinski bilansi za adijabatska ra
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32 T H ( r ) V r A a, vlez Ta, vle
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Toplinski bilansi za izotermna rabo
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Osnovnata ravenka na toplinskiot bi
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38 H / L Q q dz Ua ( T T ) dz ;
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Vtor del [arèn reaktor
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Re{enie: a) Za izotermna rabota na
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POLYMATH Results Calculated values
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Explicit equations as entered by th
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Jasno e deka vremeto potrebno za re
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Zada~a 2 64 [arèn reaktor i CSTR s
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Rezultatot e deka so eden {arèn re
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Vo ravenkata za dizajn (48) gi zame
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a) Brojot na {arìte koj }e go obez
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Kone~nata forma na brzinskiot izraz
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76 Mi % (w/w) 1 3 Cio smesa kmol/m
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Re{enie: Samo so primena na ravenka
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data e so sè pomali temperaturni r
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) Za varijantata na razmena na topl
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( H r )( rA ) V TW , vlez T
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Vkupnata koli~ina toplina {to }e se
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) Za presmetka na vremeto na reakci
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( 1 X ) To C A C Ao ; (1) ( 1 0, 5
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11620 X T To . (6) 38, 73 12, 91X
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96 t r t r C P dP dP C Ao ; 0, 5(
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a) Od kineti~kite podatoci da se op
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100 C C W n C Wo / V Wo W rastvor
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A B ; ( rA) k1C A k2C B ; 7 1 k
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) Vremeto na reakcija za 80% konver
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presmetki za izotermna rabota na re
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Zada~a 1 Hidrogenacija na etilen vo
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Tret del. Proto~en reaktor od rezer
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1 Tret del. Proto~en reaktor od rez
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POLYMATH Results Tret del. Proto~en
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F F X X A1 B1 1 1 Tret del. Proto~e
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C B2 0, 1056 F F X 2 A2 B2 2 Tre
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Zada~a 8 Tret del. Proto~en reaktor
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Explicit equations [1] R = 0 [2] T
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X * XMB XEB X*; XMB; XEB 1 0.8 0.6
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XMB XEB 1 0.8 0.6 0.4 0.2 Zada~a 10
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( C C A1 ( C C A2 ( C C A3 A Tret d
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1 Tret del. Proto~en reaktor od rez
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Zada~a 15 Tret del. Proto~en reakto
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C C C C Bo Bo Wo Wo Tret del. Proto
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dT dt Tret del. Proto~en reaktor od
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Zada~a 1 Endotermna reakcija vo gas
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êtvrti del. Idealen ceven reaktor
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Re{enie: êtvrti del. Idealen ceven
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A (NO) B (O2) C (NO2) I (N2) êtvrt
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X 0 0, 2 êtvrti del. Idealen ceve
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Re{enie: a) Izotermna rabota: êtvr
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T (K) k (T) izraz (4) êtvrti del.
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( r êtvrti del. Idealen ceven reak
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0,22 êtvrti del. Idealen ceven rea
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Zada~a 16 êtvrti del. Idealen ceve
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V PFR k F Ao êtvrti del. Idealen c
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Ropt=1,5 Vmin=1884litri êtvrti del
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Petti del Kataliti~ki reaktor so fi
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ili 318 - diferencijalen oblik, kak
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Od izve{tajot i od rezultatite od p
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Grafi~ka prezentacija na site rezul
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Ponatamu podgotvuvame brzinski izra
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Zada~a 3 326 Reakcija vo gasna faza
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Iako brzinskiot izraz e prili~no go
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330 Fio Fi() Fi(X) pi = yiP = (Fi/F
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332 A FAo B Bo Fio Fi() Fi(X) F 2F
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Ako reakcijata se odviva vo pove}ec
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Isto taka, dobro e da znaeme kolku
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Prvo, brzinskiot izraz se pi{uva vo
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340 Yexp X Ycalc 6087E-12 0.105 8.0
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Re{enie: Rabota so razmena na topli
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344 dT dV dT dT dT FT CP 65, 9 6,
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Kako {to moè da se vidi od dobieni
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Komentari: 1) So adijabatska rabota
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za KC(T) se dobiva sledniov izraz:
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352 W (kg) W (kg) (-rA) = f(W) W (k
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354 - toplina na reakcijata: Hr = 1
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356 dT dV ( H r )( r C A ) smes
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358 Potrebniot broj reaktorski cevk
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360 C TS r a, T kT pT Cv K
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364 Za brzinski izraz preku konverz
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366 0, 2 0 h f ( X ) dX 3 0, 2 0
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368 Sega go pi{uvame bilansot na ak
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Re{avawe na ravenkata (8) zna~i pre
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Analizata za razli~ni vrednosti na
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Re{enie: 1) Ravenkata za dizajn na
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[8] Po = (1-X)*P/(2-X) [9] Ph = (1-
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1 ( rO ) f ( W ) ili D f ( X )
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380 f 9, 375 ( 1, 75 0, 0585 ?) 9
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Za da zaklu~ime dali ovoj volumen e
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pritisokot i konverzijata. Zavisnos
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k 3.194E-05 3.194E-05 3.194E-05 3.1
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[esti del Industriski reaktori
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392 - vlez vo reaktorot: T C o 650
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Izleznata konverzija normalno raste
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gramata se vnesuvaat ovie dve raven
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Toplinskiot bilans vo ovoj slu~aj }
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400 X 0.5 0.4 0.3 0.2 0.1 1 2 3 4 5
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402 1060 1032 T(K) X 1004 976 948 9
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Zada~a 2 404 Piroliza na etan do et
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406 C A C Ao ( 1 X ) ; ( 1 0, 6X )
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408 X 1 0.8 0.6 0.4 0.2 0 900 950 1
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T 1053 930.72495 1053 930.72495 FAo
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sokot, potoa podatokot za konstante
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Za vrednosti na Re-brojot pome|u 30
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Page 443 and 444: Ramnoteà: Za da se kompletira slik
Page 445 and 446: Explicit equations [1] Feo = 0.0034
Page 447 and 448: POLYMATH Results Calculated values
Page 449 and 450: 432 T (K) Presek na ramnote`na i ad
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Page 453 and 454: 436 - vodorod, H: - benzen, B: - et
Page 455 and 456: Za da se re{i sistemot od 7+1 difer
Page 457 and 458: 440 FE(V) Promena na molskite proto
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Page 461 and 462: enzen izvedena pod dadenite uslovi
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Page 465 and 466: dX (rA ) . (3) dW FAo Ravenkata (3
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Page 469 and 470: 2) Novata varijanta na adijabatskat
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Page 473 and 474: Zna~i, so ovaa varijanta razreduvaw
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Page 479 and 480: Explicit equations as entered by th
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Page 483: Sedmiot segment: POLYMATH Results C
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Page 489 and 490: Zada~a 5 472 Proizvodstvo na glukon
Page 491 and 492: 30 24 / 144 5 . Zna~i, na po~etok
Page 493 and 494: T a b e l a 1 Po~etok na ciklus 10
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Page 497 and 498: te~nata reakciona smesa se odrùva
Page 499 and 500: 482 r r , r , 1 r , 2 r , 3 C
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Page 505 and 506: Zada~a 7 488 Kataliti~ka oksidacija
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Page 509 and 510: Podolu se izve{taite i grafi~kite p
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Page 513 and 514: Reakcioniot plan pretstavuva grafik
Page 515 and 516: 498 Podatoci potrebni za re{avawe n
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Page 521 and 522: - proizvod od koeficientot na preno
Page 523 and 524: 506 - Drugite podatoci se: sloj 5
Page 525 and 526: 508 X(W) W (kg) Zavisnost konverzij
Page 527 and 528: temperatura dava podobar efekt i vo
Page 529 and 530: Bidej}i reakcijata e egzotermna so
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Page 533 and 534: 516 k k r k k 1 1 1 2 2 2 dF C dV d
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So solverot za diferencijalni raven
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na koncentracijata na kislorodot. T
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522 Varijanta 2. Proces so kislorod
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Ravenka za dizajn na PBR: Ravenkata
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Sistemot diferencijalni ravenki (11
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528 FA(W) FB(W) FC(W) W (kg) FD(W);
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Ravenkite {to treba da se kombinira
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vo 7648.55 7648.55 7648.55 7648.55
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536 r2(W) r1(W) Grafik na zavisnost
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Y = 1 7, 077 ( 1 0, 45) ( 1 0, 4
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540 r2(W) r1(W) W (kg) Grafik na za
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1 ( rA ) 1 r1 k1 p A pB kmol/(kg
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544 Za specifi~nata povr{ina se zam
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na toplina i za protokot na vodata
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Cpa 44.257982 44.257982 65.187219 5
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Na prviot grafik ne e pretstavena z
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552 Da se presmetaat i analiziraat
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FMo 9, 07 3 CMo 0, 169 kmol/m .
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povtorno treba da se re{at ravenkat
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da se odviva taka vleznata temperat
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560 ~ , i iC P 35 12, 518 0, 05
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Vremeto na nestacionarniot period n
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564 C C C Ao Bo Mo F F Ao o Bo
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Kako {to se gleda od dobienite rezu
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Zada~a 11 568 Proizvodstvo na akril
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na izreagiran propilen (AK/P 0,82-
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se dobivaat preku stehiometriskite
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Granicite za re{avawe na ravenkite
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578 T(V) Grafik 2. Promena na tempe
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turata e T 520 K. Vo ovaa presmetk
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smesa moè da se izrazi preku edins
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inerti i amonijak. Koga vtoroto e s
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586 k1 pC 2 R 0 K P ( atm ) ; (
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duvanata reakcija. Ovaa operacija t
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I dvata grafika, 2 i 3, pokaùvaat
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( r A 592 F C F F F F To T T F
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Sledniot ~ekor e da se sostavat mol
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na i specifi~nata povr{ina na topli
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[5] k1 = 1.79*(10^4)*exp(-20800/1.9
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Stepen na konverzija na azot Stepen
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602 1) UaV = 25000 kJ/(m 3 ·h·K)
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LITERATURA 1. Levenspiel, Octave, C
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ISBN 978-608-65044-3-4
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HEMISKI Zbirka re{eni zada~i REAKTORI 3

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