FSC 432
Petroleum Processing

ASTM Distillation (ASTM)

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ASTM Distillation (ASTM)

ASTM distillation also uses a batch operation, but in contrast to TBP, it operates without the presence of a contact plate and a reflux ratio (R/P, or RR) of zero, as shown in Figure 4.8a. There may be a slight unintentional reflux because of the condensation of the vapor on the tube that connects the flask to the condenser.

ASTM distillation apparatus as described in text above.
Figure 4.8a. ASTM distillation apparatus.
Credit: Dr. Semih Eser © Penn State is licensed under CC BY-NC-SA 4.0
Distillation curve for ASTM distillation of the binary mixture A and B. More of an s curve as described in text above.
Figure 4.8b. Distillation curve for ASTM distillation of the binary mixture A and B.
Credit: Dr. Semih Eser © Penn State is licensed under CC BY-NC-SA 4.0
TBP distillation curve for distillation of the same binary mixture shown as distinct temperature changes.described in text above.
Figure 4.8c. TBP distillation curve for distillation of the same binary mixture.
Credit: Dr. Semih Eser © Penn State is licensed under CC BY-NC-SA 4.0