Improved Uptime And Throughput Of Demethanizer Low Side Heater

CHALLENGE

  • Find a more reliable substitute for a brazed aluminum heat exchanger as the low side heater (LSH) on the demethanizer column.
  • Be able to accommodate thermal shock, thermal cycling and hydraulic shock.

SOLUTION

A Tranter Welded Plate Heat Exchanger for the LSH duty, which fit well within footprint of brazed aluminum unit with minimal disruption of pipework.

RESULTS

  • Performed without damage over several years through incidents that damaged the brazed aluminum units.
  • Tower controllability has improved, along with a capacity increase of 5.3%.

This Tranter Welded Plate Heat Exchanger replaced a continuously failing BAHX unit, sucessfully withstanding thermal shock, thermal cycling and hydraulic shock as a demethanizer low side heater.