Reducing Equipment Emissions with Welded Plate Kettle Type Solution

Not only must we focus on reducing the CO₂ footprint of our processes, but we also need to address emissions from the equipment itself. Kettle-type reboilers and vaporizers have long been standard in industries where low operating pressures and design constraints prevent the use of vertical thermosyphon systems. Traditionally, these units employ a TEMA K-shell with a U-shaped tube bundle—a proven design, but one that comes with challenges: large footprint, high material usage, significant service space requirements, and tube vibration risks.

To overcome these limitations and improve sustainability, Plate and Shell type heat exchangers have been introduced for kettle applications. This design integrates a round, fully welded plate pack into an eccentric shell, similar to how a tube bundle fits into a K-shell. Over three decades of operational experience confirm benefits such as reduced footprint, lighter weight, tighter temperature approaches, and improved reliability. These advantages translate directly into lower material consumption and reduced CO₂ emissions compared to traditional shell-and-tube designs. Case studies show up to 50% reduction in shell length without compromising performance—making Plate and Shell kettles an ideal solution for industries seeking efficiency, space savings, and environmental responsibility.