SCRUBBER DESIGN (PACKED COLUMN)
Prepared by : C$e%&ed by : Dae :
# Ipu Daa Packin Packing g type type Packing size Packing "C
= Intall Intallox ox Saddle Saddles s = 2 !! = PP
$as p%. &%op ' ! (ed ,otal packing height
= =
Colum !a" No# 'ob No# Cle Pro*e%
: : : :
Sream
:
1 !! !!) C ' ! packing height -.2 ! incl/ding all packed (eds0
HCL Vap.
=
1*+.1 6'!20'!
Ga+ , -apour Propere+ $as ' i% flo %ate
=
1333 kg kg'h
=
3.2++4 kg's
$as p%ess/%e at ent%y
=
1.3333 at!
$as te!pe%at/%e at ent%y $as ' i% !ol eight
= =
-3.33 oC 25
Compoe o be +%rubbed Co!ponent 6a!e = Co!ponent flo %ate = 8 co!p. in ai%'gas = "olec/la% eight of co!p. =
3 !-'h
OR
-3-.33 o7
=
HCL Vap +3 7g 7 g'h 9 8 :':0 -9.
3 !-'s
=
p%es/!ed0 p%es/!ed0 ' gi:en (y client0 ' (y p%ocess cal.0
L.ud , S%rubb" meda Propere+ Sc%/((ing !edia = 238 6aH Li;/id flo %ate< L = ++ kg kg'h = 3.321* kg's Li;/id &ensity<
L
=
1133 kg'!-
Li;/id Viscosity< @L
= 3. 3.33-333 6s'!2
Packing facto%< A p
=
Cha%ac. Packing Aacto%
=
Con:e%sion -. Cp
=
3.33-3333
6s'!2
21 !B1 -Re/# !able 0#12 C$ara%er+%+ o/ Radom pa%&"+ 1.3 facto% fo% ade;/ate li;/id dist%i(/tion ? i%%igation ac%oss the (ed
Sheet 1 of 11
Cal%ulao+ !O CALCULA!E COLUMN DIAME!ER Since la%ge% flo ;/antities a%e at the (otto! fo% an a(so%(e%< the dia!ete% ill (e chosen to acco!!odate the (otto! conditions. !o %al%ulae Ga+ de+y :g. !olec/la% eight =
25.* 7g ' 7!ol
If gas flo %ate is gi:en in kg'h
If gas flo %ate is gi:en in !-'h
$as in =
$as in
3.335*-21429 7!ol's k!ol = !ass ' !ol t = k!ol's0 x , in kel:in x 1.3 at! x 22.* 2+p%. In at! 1 3.2-**55 !-'s
=
= !-'s0 x
2+x p%. in at! x , in kel:in 1.3 at!
1 22.*
=
3 7!ol's
=
3 7g's !ass = !ol t x k!ol
Select :ol. flo %ate and !ass flo %ate f%o! a(o:e< Selected !ass flo %ate = 3.2+++++4 7g's Selected :ol. Alo %ate Selected !ola% flo %ate
= 3.2-**55 !-'s = 3.335*-22 7!ol's
!$ere/ore2 "a+ de+y
=
1.14*9 7g'! -
!ass flo %ate ' :ol. Alo %ate0
!o /d L32 G3 ad !o4er %,+ area ss/!ing essentially co!plete a(so%(tion< Co!ponent %e!o:ed = 3.323+ 7g's Li;/id lea:ing = 3.3*23 7g's LF
$
$F
L
3.
Esing
=
5#55678
$F 2 Cf @L3.1 > $
L
BB
!ola% flo %ate x 8 co!p. x !ol. )t.0 Inlet li;/id flo %ate co!p. De!o:ed0
3.33*5+
as o%dinate<
Re/er /"#0#16 /sing a gas p%ess/%e d%op of
=
3.3* f%o! g%aph0
=
5#56
0 gc
$
,he%efo%e< $F
$
BB
0 gc
L
3.1 L
Cf @
$
3.
>
=
1.999 7g ' !2.s
,oe% c's a%ea
=
3.199+ !2
c's a%ea = !ass flo %ate ' $F 0
!o4er dameer
= =
3.*93+ ! 33 !!
=
Sheet 2 of 11
*93.+ !!
968#9
6'! 20'!
Co%%esponding c's a%ea
3.159- !2
=
!O ES!IMA!E POER RE;UIREMEN! Gfficiency of fan ' (loe%
=
93 8
ass/!ed ' gi:en
!o %al%ulae pre++ure drop *+3.+2 6'!2
P%ess/%e d%op fo% i%%igated = packing
p%ess/%e d%op pe% ! packing x total ht. of packing0
Ao% d%y packing< 1.-35 7g ' !2.s $as inlet flo %ate B Co!ponent %e!o:ed0 ' c's a%ea
'L $as flo %ate< $F
=
'L $as p%ess/%e $as density< $
= 1334*.24 6'!2 =
gas !ol t. x 2+x 22.*1!-'7!ol , in kel:in
= C&
=
&elta P
= C&
s/(t%acting p%ess/%e d%op ac%oss packing0 gas o'l p%. 131--3
1.193 7g'! 59.+
Re/# !able 0#12 C$ara%er+%+ o/ Radom pa%&"+
$F 2 $
=
1*2.45 6'!2
P%ess/%e d%op fo% packing =
91-.91 6'!2
P%ess/%e d%op fo% inte%nals = =
2 !!)C
i%%igated packing d%y packing0 packing s/ppo%ts and li;/id dist%i(/to%s0
2*.1+ 6'!2
$as :elocity
=
+. !'s
Inlet expansion ? o/tlet cont%action losses
= 1. x Velocity heads = *2.15 6 ! ' 7g
=
1. x V2 ' 2g0
=
*5.5+ 6'!2
!oal pre++ure drop
=
534.+ 6'!2
= p%ess/%e d%op<6'! 2 x gas in B co!ponent %e!o:ed0 7g's = =
Po4er /or /a moor
= =
di:ide (y density0 packing inte%nals losses0
'L gas density< 7g'! 231.- 6 .! ' s 3.23 k) 3.-* k) 3.* hp
fan poe% o/tp/t ' !oto% efficiency0
Sheet - of 11
COLUMN DIAME!ER , =>DRAULIC C=ECK Li;.BVap. Alo facto%< A LV
= L ' V0 x = 3.332
'
0
V
&esign fo% an initial p%ess/%e d%op of A%o! 7* :'s ALV<
L
9?
!! H2 '! packing
7*
=
3.4
7* at flooding
=
9.3
,%ial 8 flooding
= 7* ' 7* at flooding0 = -9.1923
$as !ass flo %ate< V !
=
7* .
V
1-.1 Ap @L ' = ,%ial col/!n c's a%ea ,%ial s0
,%ial col/!n dia.< &
=
BB
L
V L
0 x 133
0
1'20
03.1
-.++9- kg'!2.s V ' V!
=
3.3+-9 !2
=
3.-393 !
&=
*'pi0 x ,%ial s
Do/nd off F&F to nea%est standa%d size ,he%efo%e< & = 3.33 !
Col/!n C'S a%ea< s
=
8 flooding
=
3.159- !2
1-.*+2
s = pi'*0 x &2
8 flooding = ,%ial 8 flooding x ,%ial s ' s0
Co%lu+o $ene%ally packed toe%s a%e designed fo% 38 BB 48 flooding. If flooding is to (e %ed/ced< i0 Select la%ge% packing size and %epeat the a(o:e steps. D ii0 Inc%ease the col/!n dia!ete% and %epeat the a(o:e steps.
Sheet * of 11
=E!P PREDIC!ION Noro3+ Correlao : l =E!P @ 5#98 l 5#91 l pplica(le hen< li;/id phase s/%face tension * dyne'c! ? J -9 dyne'c! li;/id :iscosity 3.34 cP ? J 3.4- cP Con:e%sion Ipu Daa 3.314 6'! = 14 dyne'c! Li;/idBphase S/%face ,ension< = 23 dyne'c! Noro3+ Correlao Appl%able Li;/id Viscosity
=
n
=
-. cP
Noro3+ Correlao NO! appl%able
1.1-343
Cal%ulao ln HG,P
= 3.4-+*-99
HG,P
= 2.-13*-94 ft = 3.+3*2211 !
Ao% sepa%ations< less than 1 theo%itical stages< a 238 design safety facto% can (e applied. Co+der" 5F +a/ey /a%or2 HG,P = 3.4*39- !
Ao% sepa%ations< %e;/i%ing 1 to 2 theo%itical stages< a 18 design safety facto% can (e applied. Co+der" 9?F +a/ey /a%or2 HG,P = 3.4354*- !
Sheet of 11
!able 0# Co+a /or =E!P Correlao
Def. Dando! Packings and Packed ,oe%s BBBB St%igle
Def. Che!ical Gnginee%ing< Vol/!eB9 < CELS6 ? DICHD&S6FS
Def. "ass ,%ansfe% pe%ation ,%ey(al
