Case History www.tranter.com A 152-MMcf/d natural gas processing facility had been using a brazed aluminum heat exchanger as the low side heater (LSH) on the demethanizer column. The LSH had experienced loss of pressure integrity resulting in leakage on three occasions over 10 years. Each event required repair or replacement of the unit attended by extensive costly downtime. Failure was attributed to a combination of thermal shock, thermal

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