L

DETECTOR RÇAfclNÔ — FIGURE 12.2.1 RRy SCAN - CASE STuOy rfo.

(i) Feed point was changed to tray 21

(ii) The hole dia* eter of trays in the upper section was increased from 1/2 inch to 5/8 inch, thus effecting a fractional hole area increase.

No more fluctuations occurred after this, even though column vapor rates were at times far greater than the increase achievable from increasing the fractional hole area.

Feed

Feed

Figure n.u Dumping Theory

Olefins Depropanizer

CASE Siufty N* 2

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