Page 307 - Pressure Swing Adsorption

; I.I
I

284 PRESSURE SWING ADSORPTION EXTENSIONS OF THE PSA CONCEPT 285

(c)

,1.._ __ _. ___ ..,__ ___ .L_ __ _,,
1
HD OISTAHCII! -
,o

I 0 DELAY TIME, s 2
(b)
80
•• I
70 • ' (d)

• 35 J>
._ " l 95 35
m
80 0
~ 0 ~
~ " 30
"
<
a
• ~ i 90
cl' ,o ~ 0
" !: 85 25 ~
"
"" n
~ :,
40
ii '"'
"
..
5 ~ 80 20 <
0 .5 1.0 1.5
FEED TIME, I
75 15
Figure 7.14 Air separatiOn by RPSA over 40-80 mesh Linde SA zeolite pellets.
PH= 4.4 atm, PL= i atm, L = 150 cm, feed time. 0.5 sec; deiay, 2 sec; exhaust, 15 sec.
(a) Pressure and 0 2 concentration profiles along the coiumn; (b), (c) 1 and (d) effect of
varying feed time, delay ttme, and exhaust ttme on purity and recovery of 0 2 product. 0 5 10 15 20
Product rate, 48 cc STP /sec. (From Doong and Yang, 12 with permission·.) EXHAUST TIME, s
Figure 7.14 (Continued).