MARINE BOILER ON A LNG TANKER

MALAYSIA

MARINE BOILER ON A LNG TANKER

A LNG vessel, fitted with two Babcock Marine
Boilers to generate steam to drive the
propulsion and steam turbines, experienced
heavy deposits in the Combustion and Radiant
sections of the boilers.

After Therma-Chem Treatment

Therma-Chem’s MB9 was applied on-line on a
pre-docking dosing programme for a period
of 2 months to loosen deposits and neutralise
the corrosive components prior to docking.
The pictures on the right show the condition of the economiser before and after cleaning,
highlighting the success of MB9 in removing
and preventing sulphur corrosion.

The boiler load remained steady throughout
the period while the economiser outlet
temperature declined slightly, indicating that
Therma-Chem were having a positive effect on
the boiler.

The success of this treatment was evidenced
in the clean and well-maintained surfaces
within the Combustion and Radiant sections of the boiler and the reduced cleaning time when docked. This resulted in Therma-Chem being commissioned to treat a further 15 vessels.