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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 '