Confirm no yellow metal. AVT (O) applied currently with amine base for pH controller. Carbon steel at the return condensate t demin plant. Length of piping is 100m and observed significant pH dropped in the turbine condensate that maintain at 8.5 to 8.8 against the BFW is 9.2 to 9.4. Confirm no oxygen ingress based on DO reading at the bottom deaerator and able to maintain vacuum pressure at the surface condenser.
Published by Harizan Hawari, Staff Engineer at Petronas Chemicals Group
Confirm no yellow metal. AVT (O) applied currently with amine base for pH controller. Carbon steel at the return condensate t demin plant. Length of piping is 100m and observed significant pH dropped in the turbine condensate that maintain at 8.5 to 8.8 against the BFW is 9.2 to 9.4. Confirm no oxygen ingress based on DO reading at the bottom deaerator and able to maintain vacuum pressure at the surface condenser.