HEMISKI Zbirka re{eni zada~i REAKTORI 3

More documents

Recommendations

Info

Vtor del. [arèn reaktor od {to sleduva deka vleznata temperatura treba da bide poniska od 12,24 o C (ova e dobieno so zamenata t = 0 vo ravenkata (7)). Ako vo ravenkata (6) se odi so ovaa vlezna temperatura, za protokot na vodata }e se dobie beskone~no! Zatoa za vleznata temperatura se izbira vrednost, na primer: T 12, 24 C 10 C . W , vlez Ravenkata (6) se re{ava so ovaa izbrana vrednost za vleznata temperatura na vodata za ladewe. Se dobivaat rezultati koi pokaùvaat kako so vremeto treba da se kontrolira protokot na vodata za ladewe za da se obezbedat izotermni uslovi za polimerizacija na stirenot: t (min) 0 5 10 15 20 30 40 50 60 wW (g/min) 217 124 70 48 35 20 12 8 5 Zna~i, protokot na vodata so vremeto }e se namaluva zatoa {to toplinata {to treba da se odzema od reakcionata smesa isto taka }e se namaluva (poradi namaluvaweto na brzinata na reakcijata so vremeto). Ova izgleda vaka: kako da sme zastanale pokraj ~e{mata i ventilot go zategame postepeno! Ako se zanemari ~lenot „akumulacija“ vo toplinskiot bilans (5), toga{ ravenkata (6) }e izgleda vaka: 513, 71exp( 0, 0387 t) wW W ( T TW , vlez ) 7, 76 exp( 0, 0387 t) o o w ( t) , (61) od {to se gleda deka za protokot na vodata bi se presmetuvale vrednosti za 513,71/483,68 = 1,062, odnosno za 6,2% pogolemi od prethodnite. Ova e taka zatoa {to toplinata {to bi ja zadrùvala vodata za ladewe (~lenot akumulacija) sega bi trebalo da se odveduva so dopolnitelna koli~ina voda! Varijantata so zanemarena akumulacija na toplina, izrabotena vo POLYMATH, so izve{taj, rezultati i grafi~ko pretstavuvawe e kako {to sledi: 81
POLYMATH Results Calculated values of the DEQ variables Variable initial value minimal value maximal value final value t 0 0 60 60 Ca 2 0.1961545 2 0.1961545 R 0.0774 0.0075912 0.0774 0.0075912 V 0.4 0.4 0.4 0.4 UA 66.2 66.2 66.2 66.2 T 20 20 20 20 Delta 1.66E+04 1.66E+04 1.66E+04 1.66E+04 Twvlez 10 10 10 10 Q 513.936 50.405422 513.936 50.405422 Tw 12.236616 12.236616 19.238589 19.238589 Ww 229.78282 5.4559655 229.78282 5.4559655 ODE Report (RKF45) Differential equations as entered by the user [1] d(Ca)/d(t) = -R Explicit equations as entered by the user [1] R = 0.0387*Ca [2] V = 0.4 [3] UA = 66.2 [4] T = 20 [5] Delta = 16600 [6] Twvlez = 10 [7] Q = Delta*R*V [8] Tw = T-(Q/UA) [9] Ww = (UA*(T-Tw))/(Tw-Twvlez) 82 CA(t) t (min) Vremenska promena na koncentracijata na reaktantot, C A (t)
Page 1 and 2:
HEMISKI REAKTORI 3 Zbirka re{eni za
Page 3 and 4:
Skopje, 2010
Page 6 and 7:
Predgovor . . . Hemiskiot reaktor e
Page 8 and 9:
lot da se stekne so ve{tina da gi k
Page 10:
~ite }e mu ovozmoì preku niv da go
Page 13 and 14:
5. TOPLINSKI BILANSI ..............
Page 15 and 16:
XIV êtvrti del IDEALEN CEVEN REAKT
Page 17 and 18:
Zada~a 4. Adijabatski PBR so pretho
Page 20 and 21:
1. STEHIOMETRIJA 1.1. Prost reakcio
Page 22 and 23:
Prv del. Definicii, koncepti, stehi
Page 24 and 25:
2. TOPLINA NA REAKCIJA I HEMISKA RA
Page 26 and 27:
Page 28 and 29:
3. IZRAZI ZA BRZINA NA REAKCIJA 3.1
Page 30 and 31:
Page 32:
Page 35 and 36:
Molskite koncentracii vklu~eni vo b
Page 37 and 38:
kako ravenkata (52). Razlikata e vo
Page 39 and 40:
Ravenkite za dizajn na cevniot reak
Page 41 and 42:
Ravenkata za dizajn na ceven reakto
Page 43 and 44:
Za presmetka na brojot na reaktorit
Page 45 and 46:
28 Po~eten uslov za re{avawe na sis
Page 47 and 48: Toplinski bilansi za adijabatska ra
Page 49 and 50: 32 T H ( r ) V r A a, vlez Ta, vle
Page 51 and 52: Toplinski bilansi za izotermna rabo
Page 53 and 54: Osnovnata ravenka na toplinskiot bi
Page 55 and 56: 38 H / L Q q dz Ua ( T T ) dz ;
Page 58 and 59: Prv del. Definicii, koncepti, stehi
Page 70: Vtor del [arèn reaktor
Page 73 and 74: Re{enie: a) Za izotermna rabota na
Page 75 and 76: POLYMATH Results Calculated values
Page 77 and 78: Explicit equations as entered by th
Page 79 and 80: Jasno e deka vremeto potrebno za re
Page 81 and 82: Zada~a 2 64 [arèn reaktor i CSTR s
Page 83 and 84: Rezultatot e deka so eden {arèn re
Page 85 and 86: Vo ravenkata za dizajn (48) gi zame
Page 87 and 88: a) Brojot na {arìte koj }e go obez
Page 89 and 90: Kone~nata forma na brzinskiot izraz
Page 91 and 92: Explicit equations as entered by th
Page 93 and 94: 76 Mi % (w/w) 1 3 Cio smesa kmol/m
Page 95 and 96: Re{enie: Samo so primena na ravenka
Page 97: data e so sè pomali temperaturni r
Page 101 and 102: ) Za varijantata na razmena na topl
Page 103 and 104: ( H r )( rA ) V TW , vlez T
Page 105 and 106: Vkupnata koli~ina toplina {to }e se
Page 107 and 108: ) Za presmetka na vremeto na reakci
Page 109 and 110: ( 1 X ) To C A C Ao ; (1) ( 1 0, 5
Page 111 and 112: 11620 X T To . (6) 38, 73 12, 91X
Page 113 and 114: 96 t r t r C P dP dP C Ao ; 0, 5(
Page 115 and 116: a) Od kineti~kite podatoci da se op
Page 117 and 118: 100 C C W n C Wo / V Wo W rastvor
Page 119 and 120: A B ; ( rA) k1C A k2C B ; 7 1 k
Page 121 and 122: ) Vremeto na reakcija za 80% konver
Page 123 and 124: presmetki za izotermna rabota na re
Page 126 and 127: Zada~a 1 Hidrogenacija na etilen vo
Page 128 and 129: Tret del. Proto~en reaktor od rezer
Page 134 and 135: 1 Tret del. Proto~en reaktor od rez
Page 136 and 137: POLYMATH Results Tret del. Proto~en
Page 148 and 149:
Tret del. Proto~en reaktor od rezer
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156 and 157:
Page 158 and 159:
Page 160 and 161:
F F X X A1 B1 1 1 Tret del. Proto~e
Page 162 and 163:
C B2 0, 1056 F F X 2 A2 B2 2 Tre
Page 164 and 165:
Page 166 and 167:
Page 168 and 169:
Zada~a 8 Tret del. Proto~en reaktor
Page 170 and 171:
Explicit equations [1] R = 0 [2] T
Page 172 and 173:
Page 174 and 175:
X * XMB XEB X*; XMB; XEB 1 0.8 0.6
Page 176 and 177:
Page 178 and 179:
XMB XEB 1 0.8 0.6 0.4 0.2 Zada~a 10
Page 180 and 181:
Page 182 and 183:
( C C A1 ( C C A2 ( C C A3 A Tret d
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Page 196 and 197:
Page 198 and 199:
Page 200 and 201:
Page 202 and 203:
Page 204 and 205:
Page 206 and 207:
1 Tret del. Proto~en reaktor od rez
Page 208 and 209:
Page 210 and 211:
Zada~a 15 Tret del. Proto~en reakto
Page 212 and 213:
C C C C Bo Bo Wo Wo Tret del. Proto
Page 214 and 215:
Page 216 and 217:
Page 218 and 219:
dT dt Tret del. Proto~en reaktor od
Page 220:
Page 224 and 225:
Zada~a 1 Endotermna reakcija vo gas
Page 226 and 227:
êtvrti del. Idealen ceven reaktor
Page 228 and 229:
Page 230 and 231:
Re{enie: êtvrti del. Idealen ceven
Page 232 and 233:
POLYMATH Results Calculated values
Page 234 and 235:
Page 236 and 237:
A (NO) B (O2) C (NO2) I (N2) êtvrt
Page 238 and 239:
Page 240 and 241:
Page 242 and 243:
Page 244 and 245:
Page 246 and 247:
Page 248 and 249:
Page 250 and 251:
Page 252 and 253:
Page 254 and 255:
Page 256 and 257:
X 0 0, 2 êtvrti del. Idealen ceve
Page 258 and 259:
Page 260 and 261:
Page 262 and 263:
Page 264 and 265:
Page 266 and 267:
Page 268 and 269:
Page 270 and 271:
Page 272 and 273:
Page 274 and 275:
Explicit equations as entered by th
Page 276 and 277:
Re{enie: a) Izotermna rabota: êtvr
Page 278 and 279:
Page 280 and 281:
Page 282 and 283:
Page 284 and 285:
T (K) k (T) izraz (4) êtvrti del.
Page 286 and 287:
Page 288 and 289:
( r êtvrti del. Idealen ceven reak
Page 290 and 291:
0,22 êtvrti del. Idealen ceven rea
Page 292 and 293:
Page 294 and 295:
Zada~a 16 êtvrti del. Idealen ceve
Page 296 and 297:
V PFR k F Ao êtvrti del. Idealen c
Page 298 and 299:
Page 300 and 301:
Page 302 and 303:
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
Page 310 and 311:
Page 312 and 313:
Page 314 and 315:
Page 316 and 317:
Page 318 and 319:
Page 320 and 321:
Page 322 and 323:
Page 324 and 325:
Page 326 and 327:
Page 328 and 329:
Page 330 and 331:
Ropt=1,5 Vmin=1884litri êtvrti del
Page 332:
Petti del Kataliti~ki reaktor so fi
Page 335 and 336:
ili 318 - diferencijalen oblik, kak
Page 337 and 338:
Od izve{tajot i od rezultatite od p
Page 339 and 340:
Grafi~ka prezentacija na site rezul
Page 341 and 342:
Ponatamu podgotvuvame brzinski izra
Page 343 and 344:
Zada~a 3 326 Reakcija vo gasna faza
Page 345 and 346:
Iako brzinskiot izraz e prili~no go
Page 347 and 348:
330 Fio Fi() Fi(X) pi = yiP = (Fi/F
Page 349 and 350:
332 A FAo B Bo Fio Fi() Fi(X) F 2F
Page 351 and 352:
Ako reakcijata se odviva vo pove}ec
Page 353 and 354:
Isto taka, dobro e da znaeme kolku
Page 355 and 356:
Prvo, brzinskiot izraz se pi{uva vo
Page 357 and 358:
340 Yexp X Ycalc 6087E-12 0.105 8.0
Page 359 and 360:
Re{enie: Rabota so razmena na topli
Page 361 and 362:
344 dT dV dT dT dT FT CP 65, 9 6,
Page 363 and 364:
Kako {to moè da se vidi od dobieni
Page 365 and 366:
Komentari: 1) So adijabatska rabota
Page 367 and 368:
za KC(T) se dobiva sledniov izraz:
Page 369 and 370:
352 W (kg) W (kg) (-rA) = f(W) W (k
Page 371 and 372:
354 - toplina na reakcijata: Hr = 1
Page 373 and 374:
356 dT dV ( H r )( r C A ) smes
Page 375 and 376:
358 Potrebniot broj reaktorski cevk
Page 377 and 378:
360 C TS r a, T kT pT Cv K
Page 379 and 380:
Page 381 and 382:
364 Za brzinski izraz preku konverz
Page 383 and 384:
366 0, 2 0 h f ( X ) dX 3 0, 2 0
Page 385 and 386:
368 Sega go pi{uvame bilansot na ak
Page 387 and 388:
Re{avawe na ravenkata (8) zna~i pre
Page 389 and 390:
Analizata za razli~ni vrednosti na
Page 391 and 392:
Re{enie: 1) Ravenkata za dizajn na
Page 393 and 394:
[8] Po = (1-X)*P/(2-X) [9] Ph = (1-
Page 395 and 396:
1 ( rO ) f ( W ) ili D f ( X )
Page 397 and 398:
380 f 9, 375 ( 1, 75 0, 0585 ?) 9
Page 399 and 400:
Za da zaklu~ime dali ovoj volumen e
Page 401 and 402:
pritisokot i konverzijata. Zavisnos
Page 403 and 404:
k 3.194E-05 3.194E-05 3.194E-05 3.1
Page 406:
[esti del Industriski reaktori
Page 409 and 410:
392 - vlez vo reaktorot: T C o 650
Page 411 and 412:
Izleznata konverzija normalno raste
Page 413 and 414:
gramata se vnesuvaat ovie dve raven
Page 415 and 416:
Toplinskiot bilans vo ovoj slu~aj }
Page 417 and 418:
400 X 0.5 0.4 0.3 0.2 0.1 1 2 3 4 5
Page 419 and 420:
402 1060 1032 T(K) X 1004 976 948 9
Page 421 and 422:
Zada~a 2 404 Piroliza na etan do et
Page 423 and 424:
406 C A C Ao ( 1 X ) ; ( 1 0, 6X )
Page 425 and 426:
408 X 1 0.8 0.6 0.4 0.2 0 900 950 1
Page 427 and 428:
T 1053 930.72495 1053 930.72495 FAo
Page 429 and 430:
sokot, potoa podatokot za konstante
Page 431 and 432:
Za vrednosti na Re-brojot pome|u 30
Page 433 and 434:
416 V (m 3 ) P(V) V (m 3 ) X(T) T (
Page 435 and 436:
eaktorot: dali toa }e bide izotermn
Page 437 and 438:
2) Da se povtori re{enieto pod 1),
Page 439 and 440:
e{avawe na zada~ata da se koristi p
Page 441 and 442:
ni ravenki, (5), (6) i (7), zavisno
Page 443 and 444:
Ramnoteà: Za da se kompletira slik
Page 445 and 446:
Explicit equations [1] Feo = 0.0034
Page 447 and 448:
Page 449 and 450:
432 T (K) Presek na ramnote`na i ad
Page 451 and 452:
cionen mehanizam koj, pokraj glavna
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
Page 459 and 460:
442 F F F F F F F E FEo 1) 1 ( 1
Page 461 and 462:
enzen izvedena pod dadenite uslovi
Page 463 and 464:
- toplinski kapaciteti na reaktanto
Page 465 and 466:
dX (rA ) . (3) dW FAo Ravenkata (3
Page 467 and 468:
FAo 20 20 20 20 T 527.23 527.23 812
Page 469 and 470:
2) Novata varijanta na adijabatskat
Page 471 and 472:
454 C P, A F C i H r C P, i P, B
Page 473 and 474:
Zna~i, so ovaa varijanta razreduvaw
Page 475 and 476:
segment }e treba da se presmetuva p
Page 477 and 478:
dodeka izrazite za molskite koncent
Page 479 and 480:
Page 481 and 482:
Toi 650.66442 650.66442 650.66442 6
Page 483 and 484:
Sedmiot segment: POLYMATH Results C
Page 485 and 486:
Page 487 and 488:
470 X 0.4 0.32 0.24 0.16 0.08 0 500
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
Page 495 and 496:
478 Vmax / K m 1 5 3 k 0, 016 h
Page 497 and 498:
te~nata reakciona smesa se odrùva
Page 499 and 500:
482 r r , r , 1 r , 2 r , 3 C
Page 501 and 502:
azot za vkupno sozdadena kiselina (
Page 503 and 504:
486 CB(t) CM(t) t (s) t (s) t (s) A
Page 505 and 506:
Zada~a 7 488 Kataliti~ka oksidacija
Page 507 and 508:
490 dX dW ( rA ) F1 ( X , T ) (2)
Page 509 and 510:
Podolu se izve{taite i grafi~kite p
Page 511 and 512:
K2 13.126279 5.2903007 13.126279 5.
Page 513 and 514:
Reakcioniot plan pretstavuva grafik
Page 515 and 516:
498 Podatoci potrebni za re{avawe n
Page 517 and 518:
nosno ravenka za dizajn (preku konv
Page 519 and 520:
0, 01094 kmol ( rA ) k 0, 425 P ; P
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
Page 531 and 532:
514 - Kinetika r ( r k r k 1 1 2 2
Page 533 and 534:
516 k k r k k 1 1 1 2 2 2 dF C dV d
Page 535 and 536:
So solverot za diferencijalni raven
Page 537 and 538:
na koncentracijata na kislorodot. T
Page 539 and 540:
522 Varijanta 2. Proces so kislorod
Page 541 and 542:
Ravenka za dizajn na PBR: Ravenkata
Page 543 and 544:
Sistemot diferencijalni ravenki (11
Page 545 and 546:
528 FA(W) FB(W) FC(W) W (kg) FD(W);
Page 547 and 548:
Page 549 and 550:
Ravenkite {to treba da se kombinira
Page 551 and 552:
vo 7648.55 7648.55 7648.55 7648.55
Page 553 and 554:
536 r2(W) r1(W) Grafik na zavisnost
Page 555 and 556:
Y = 1 7, 077 ( 1 0, 45) ( 1 0, 4
Page 557 and 558:
540 r2(W) r1(W) W (kg) Grafik na za
Page 559 and 560:
1 ( rA ) 1 r1 k1 p A pB kmol/(kg
Page 561 and 562:
544 Za specifi~nata povr{ina se zam
Page 563 and 564:
na toplina i za protokot na vodata
Page 565 and 566:
Cpa 44.257982 44.257982 65.187219 5
Page 567 and 568:
Na prviot grafik ne e pretstavena z
Page 569 and 570:
552 Da se presmetaat i analiziraat
Page 571 and 572:
FMo 9, 07 3 CMo 0, 169 kmol/m .
Page 573 and 574:
povtorno treba da se re{at ravenkat
Page 575 and 576:
da se odviva taka vleznata temperat
Page 577 and 578:
560 ~ , i iC P 35 12, 518 0, 05
Page 579 and 580:
Vremeto na nestacionarniot period n
Page 581 and 582:
564 C C C Ao Bo Mo F F Ao o Bo
Page 583 and 584:
Kako {to se gleda od dobienite rezu
Page 585 and 586:
Zada~a 11 568 Proizvodstvo na akril
Page 587 and 588:
na izreagiran propilen (AK/P 0,82-
Page 589 and 590:
se dobivaat preku stehiometriskite
Page 591 and 592:
Granicite za re{avawe na ravenkite
Page 593 and 594:
Page 595 and 596:
578 T(V) Grafik 2. Promena na tempe
Page 597 and 598:
turata e T 520 K. Vo ovaa presmetk
Page 599 and 600:
smesa moè da se izrazi preku edins
Page 601 and 602:
inerti i amonijak. Koga vtoroto e s
Page 603 and 604:
586 k1 pC 2 R 0 K P ( atm ) ; (
Page 605 and 606:
duvanata reakcija. Ovaa operacija t
Page 607 and 608:
I dvata grafika, 2 i 3, pokaùvaat
Page 609 and 610:
( r A 592 F C F F F F To T T F
Page 611 and 612:
Sledniot ~ekor e da se sostavat mol
Page 613 and 614:
na i specifi~nata povr{ina na topli
Page 615 and 616:
[5] k1 = 1.79*(10^4)*exp(-20800/1.9
Page 617 and 618:
Stepen na konverzija na azot Stepen
Page 619 and 620:
602 1) UaV = 25000 kJ/(m 3 ·h·K)
Page 622 and 623:
LITERATURA 1. Levenspiel, Octave, C
Page 626:
ISBN 978-608-65044-3-4
show all

HEMISKI Zbirka re{eni zada~i REAKTORI 3

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?