Page 308 - Pressure Swing Adsorption

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284 PRESSURE SWING ADSORPTION EXTENSIONS OF THE PSA CONCEPT 285

(c)

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1
HD OISTAHCII! -
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I 0 DELAY TIME, s 2
(b)
80
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70 • ' (d)

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m
80 0
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a ~ 90 30
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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).