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第七章. 多相催化反应器的设计与分析. 7.1 固定床内的传递现象 7.2 固定床反应器的数学模型 7.3 绝热式固定床反应器 7.4 换热式固定床反应器 7.5 自换热式固定床反应器 7.6 参数敏感性 7.7 流化床反应器. 本章的主要内容.

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第七章

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7.1

7.2

7.3

7.4

7.5

7.6

7.7


1


7.1



()/()

7.1

12



12



dS

f L

u0

Re10f = 1/Re Re1000 f = 1.75


15


(a)

(b)

(c)

(d)


1.

ee(e0)eer


h0tmtW

Ah061.2320kJ(m2hK)

h0


h0

20Re7600 0.05dPd t0.3

20Re8000.03dPd t0.2

d tdP


er erer


erRePr

ab

hWtRtW


2.

hPhP

am= Sa/B

Sa

=1 =0.9

=0.81 =0.9


jH

Q:


DrDadpPeLr


Per513Re20 Per10


7.3


1.

0


GAwAOdZA

(7.9)

0

(7.10)


(7.11)

(7.12)

(7.13)

(7.14)

(7.9)(7.11)

TC


(7.12)

MK


2.

5


(1)

(2)

(3)

(7.9)(7.10)


7.3


(1).

(2).

(3).


SO2

(1).

(2).;

(3).


(7.21)

(7.22)

(7.22)

(7.10)

(7.9)(7.21)


(7.23)

(7.24)

(7.25)

()

(7.9)

(7.24)


()()()()()


1.

7.4T-XAABCDABCDBCDE


7.4



(7.28)

(7.30)

(7.29)

WxAT


W:


(1)(7.30)(7.23)

(2)(7.28)

(3)(7.30)(7.23)N

N


7-3 COH2OCO2H20.12670.58330.3940.15758.9mm7.67mm633K91.6?


rAkPA(10) PCPD/(PAPBKP)

PAPBPCPD

KP

KP0.0165exp(4408/T) (A)

k

k2.172104exp(6542/T)mol/(gminPa) (B)

155.2K


T'1T2T2


T633155.2xA

0.85

PA1.283104(1xA)


PB5.9091041.283104xA

PC3.9911031.283104xA

PD1.5951041.283104xA

663K


663K


0.85


6.4

()




(7.31)

D

P

M

xA

F

N

B

K

Q

H

G

E

A

7.6DMNPBQHHDDMND

T


TATETGABDEFDGD

ABDdT/dXA>0dT/dXA<0

dT/dXA0(7.33)dT/dZ


7.6T-XA


1.

7.7T0=628635KT0633K635K2K20636K


2.

7.8(CO+CO2)

628K83.4633K80.5


T2,in

T10

T1,f xAf

7.5

7.9


7.9(a)7.9(b)



(7.51)

(7.52)

(7.53)

(7.9)(7.10)


(7.54)

0TCTC0

GC0

1GCptGCPt

TC0TLrXALr


7.6

TmT0(T0+)

A0TCT0U/dt


7.7



(umf )

umf

umf


ut


7.1-3


7.1-3u0Pu0(WAt)P(WAt)

Lmfmfsf


(1)

(2)

(3)

(1)

(2)

(3)


1.(umf )

umfReP=dPumf/


2.u t


3. utumf

utumf 1090

4.

0.150.5m/s

5.

u0F01.510 ( F0=u0umf )


1.

7.11



2.

ubr

ub


3.

ubruf

RCRb

q


CVCVb


4.

0.0010.01


1.

7.1-5

(a)(b)

(c)



(d)

(e)

250mm

PdPb102035cm1


2.


7.1-6


u0umf611


: dpWKs

n47



1.

(+)(+)

(+)(+)


()


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