INTERNAL PIPE TREATMENTS
List of Chemicals Used in VCN Process
VERTREL SDG
Isopropyl Alcohol
TERGO
Ammonia
N Propyl Bromide
HFEs
Chlorinated Solvents
Alcohols
Per acidic Acid
AE 3000
Hydrogen Peroxide
Amyl Alcohol
Potassium Hydroxide
Sodium Hydroxide
Phosphoric Acid
Citric Acid
Nitric Acid
Surfactants
VIDEO: AQEOUS TUBE TREATMENT
In the video, vapor bubbles are growing within a fluid boundary layer near the tube surface. The surface reaction by-products are carried to the bulk fluid and fresh chemical is convected to the surface. The result is rapid surface treatment during vacuum and a slower reaction rate during the VCN pressure cycle.
