Condensation is the heat transfer process that changes a gas or vapor to a liquid. It is employed in the reflux process to improve the efficiency of distillation. Condensation can also be employed for producing saturated liquid products, for sub-cooling, or to serve an environmental or vapor recovery function. Condensation is carried out in a variety of configurations. By properly monitoring chemical condensers, plants can ensure that distillation and other processes run as efficiently as possible.
Magnetrol® has produced a brochure detailing different applications throughout the ethylene industry and exploring measurement challenges and solutions for each one. This blog post is part of an occasional series exploring each application in detail.
Level Measurement Challenges and Considerations
In the distillation process, tower vapors are condensed prior to entering an accumulator. The condenser’s level can be used to control tower pressure where the liquid level set point serves as the manipulated variable (MV) for the pressure controller. Adjusting liquid level in chemical condensers changes the effective heat-transfer area.
Level Instrumentation Solutions
MAGNETROL offers a range of level instrumentation solutions for chemical condensers:
- For point level measurement
Series 3 float-actuated external cage level switch
- For continuous level measurement
Eclipse® Model 706 guided wave radar transmitter
- For visual indication
Atlas™ or Aurora® magnetic level indicators can be supplied with switches or transmitters
For more information on level measurement solutions for chemical condensers and other ethylene industry applications, download the ethylene industry brochure.