Ceramic Polymer: Internal coating of cooling water intake risers for extensive FLNG-Project

BIELEFELD, Germany - Sept. 9, 2016 - PRLog -- The liquid gas tanker „Prelude FLNG" is the world's biggest swimming offshore facility. For the protection of the cooling water intake risers the company EUPEC Pipecoatings applied the internal coating CERAMIC-POLYMER SF/LF-3, which provides outstanding resistances against abrasion and corrosion.

The ship is huge; 488 m long, 75 m wide and 90 m high. It anchors above the „Prelude"-gas field, 200 km off the Australian coast, extracts the natural gas out of the ground and liquefies it. The storage capacity is 600,000 metric tons.

Per hour, 50 million (!) liters of sea water are required to cool down the gas during the liquefaction process at minus 162°C (-260°F). The internal coating of the risers has to feature an outstanding abrasion resistance to withstand such strong streaming water.

Technical Details
Project: Internal coating of cooling water intake risers
Diameter of the pipes: 1.07 m + 0.76 m
Total area: 3,800 m2 internal coating
Coating product: CERAMIC-POLYMER SF/LF-3
Product requirements: excellent abrasion resistance and stability against sea water
Application of the coating: EUPEC Pipecoatings, FR-Gravelines/France


Product of CERAMIC-POLYMER SF/LF-3
•    superior abrasion resistance
•    excellent chemical resistance
•    temperature stability up to 150°C (300°F)
•    long-lasting corrosion protection
•    1-layer-system
•    short curing times (after post-curing of 1 h at 30°C (86°F) the pipes were already transportable!)
•    free from solvents
•    offshore-suitable - Test according to ISO 20340 (Performance requirements for protective paint systems for offshore and related structures)

One thin film, fast drying-time by post-curing

The internal coating for the cooling water intake risers was applied with a layer thickness of 500 µm (20 mils) simply by airless spraying method. Just one layer is sufficient to prevent the pipelines long-term from serious abrasion and heavy corrosion damages.

The curing time of the freshly coated pipes was reduced effectively by post-curing. Already after 1 hour warming in the oven at 30°C (86°F) the pipelines were transportable!

http://www.ceramic-polymer.de