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

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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.