Prolonged bypassing of the expander in JT mode led to thermal stresses that caused a plate-fin heat exchanger to fail (cracked). Rather than installing the same heat exchanger design that was prone to the same problems of thermal stresses, RCE designed three two-pass heat exchangers where the flows could be manipulated to avoid thermal stresses when bypassing the expander or under other off-design conditions. This led to a much more robust design with more operating flexibility and faster start-up times. Doing our part to add value to our client’s operations