Assertion: distillation | /r/MadeOf | vertical tower
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Source sentences:
text: Thus, the distillation at atmospheric pressure (atmospheric distillation unit) consists of a vertical tower (Figure 8.3)—which may have dimension on the order of 13 ft in diameter and 85 ft high, but a tower stripping unwanted volatile material from gas oil may be only 3 or 4 ft in diameter and 10 ft high.