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Tugas : Pengolahan Gas Buang & Partikulat
Tema : Perencanaan Unit Adsorption
Nama : Rachmad Ardhianto
NRP : 3315!1!!"
#tudi $asus:
A sol%ent degreaser is designed to reco%er toluene rom a 5 m3' air stream at 5() *++(,- and
atmosphere pressure. The compan/ is planning to use a t0o2ed car2on adsorption s/stem
0ith a c/cle time o h The ma4imum concentration o toluene is kept 2elo0 ! o the lo0er
e4plosi%e limit *676- or saet/ purposes Using ,igure 8.19 the adsorption isotherm or toluene
and the additional operational data estimate:
1. The amount o car2on re;uired or a h c/cle
. #;uare eet o surace area re;uired 2ased on a !.58 m'sec *1!! pm- ma4imum %elocit/
3. R Tolune : ".1 kg'kgmol
)ar2on densit/ : 8! kg'm3 *3! l2't3-
#olution:
#tep 1: )alculate the toluene flow rate:
5 m3'sec 4 ! 4 15 ? !.!3 m3'sec toluene
#tep :
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#tep 3.
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? 5 m3'sec'*!.5!8 m'sec-
? ".8 m
Ne4t )alculated:
,or a horiFontal o0 adsor2er this 0ould correspond to a %essel appro4imatel/ m *9.9
t- in 0idth and m *13.1 t- in length to gi%e 8.! m *8+ t- surace area. This 0ould
suppl/ more than the re;uired area *http://67.199.58.32/products.php?id=16-. The o0
rate is too high to 2e handled 2/ a single %ertical o0 adsor2er
7ach %essel then must 2e siFed to handle 1.8" m3'sec *!!! acm-
The area re;uired or a limiting %elocit/ o !.5!8 m'sec is:
Area to andle hal lo0 A ? *1.8" m3'sec- ' *!.5!8 m'sec- ? 3.+ m
This crosssectional area corresponds to a %essel diameter o:
#tep 9 . Eolume that the car2on 0ould occup/ in horiFontal 2ed:
Eolume o car2on ? eight o car2on '
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