Nouryon - Flue gas stack - HCG Boiler
The condition of the current flue gas stack was disintegrated due to high levels of hydrochloric acid in the system. Multiple components needed replacement, including the tune mass silencer.
- Material selection was challenging due to the sweet and sour in the system.
- Difficult to weld with proper certifications.
- Using Alloy 59 for the chimney construction; a type of steel that is resistant to sweet and sour.
- Ordering the Alloy 59 before the order was in, due to the long lead time of the material.