| 摘要 |
This invention constitutes an improved method for condensing fatty acids, particularly from steam streams exiting from distillation columns. Steam streams containing entrained high-titre fatty acids can be condensed in surface condensers if certain conditions are maintained. A surface condenser, having a shell and tube configuration, is oriented in a vertical position rather than the horizontal position often employed. Quite contrary to normal processing, the cooling medium is passed through the shell side of the surface condenser and the steam stream containing entrained high-titre fatty acids is passed through the tube side. Conditions must be maintained within the tube side of the condenser so that a velocity of at least 30' per second is provided and the steam stream must contain at least about 70% steam, by weight, in the tube side of the surface condenser.
|
