Page 73 - Adsorption by Powders and Porous Solids

vacuum adsorptive

reservoir reservoir
L
hb ,To vacuum

vacuum

1 I differential absolute
pressure

glass beads - - adsorbent

Figure 3.6. Differential gas adsorption manometry with double reservoir and biple pressure me1
ment (after Camp and Stanley, 1991).

differential
gas flowmeter -

gas +& I - \ 1 -
mixture
+-iU

(adsorptive + carrier gas)

adsorbent
Figure 3.7. Differential flow technique for gas adsorption (after Nelsen and Eggertsen, 1958).