Chemical Cleaning


Chemical Cleaning

Environmental Restrictions, Safety Hazards, Expensive Disposal of Spent Chemicals, Scheduling Restraints, Critical Time Workloads, Environmental Regulations and safety hazards associated with toxic cleaning chemistries are all common problems with plant start-ups and turn-around maintenance. Verchem Industrial Chemical Cleaning Services minimized these potential difficulties with safe, efficient, custom-engineered chemical cleaning methods.

Pre-operational boiler and process plant chemical cleaning services
Pre-commissioning boiler and process plant chemical cleaning services
Post-operational boiler and process plant chemical cleaning services
Refinery and Petrochemical plants turnaround degassing/decontamination services


Chemistry Selection

Dangers of Choosing Wrong Chemistry

  • Harmful effect may well be long term.
  • Does not manifest itself immediately.

Disadvantages Of Conventional Methods

  • This generates about 2 volume more waste which is today very costly to treat and dispose.
  • Poses maximum exposure hazards to personnel and equipment.

Other Condsiderations


Pre-Operational /


The Need To Clean:

Step Two



To remove operational deposits that have accumulated during normal operation of the unit since the last cleaning. For Boiler, the objective is to remove deposits from the inside of boiler tubes which improves the boiler heat rate, reduces tube failures and improves the stability of boiler chemistry

The Need To Clean:


Proven Chemical Cleaning Technology

VERTAN® V665 Single-fill Chemistry

Our Vertan® 665 Low Chloride Content Chelant removes oil, millscale & passivate the newly cleaned system internal surfaces in a single volume of chemical with very low corrosion rate, low toxicity, less water volume but gives excellent results. Safe for system with Stainless steel components.

VERTAN® V675 Alkaline Copper Removal (ACR) Process

Highly effective solvent for removing operational deposits of Iron oxide and copper oxides and elemental copper from internal boiler surfaces in the alkaline pH range of 9.2 with larger boilers cleaned in hours or less. The ability of V675 process to remove iron and copper oxides and copper as well in a single fill is what makes it valuable to the industry as a solvent.


Used with our Vertan® chelant for Pre-operational Chemical cleaning process. F082 effectively removes grease or oil contaminants from piping and/or equipment’s internal surfaces.

A300 Corrosion Inhibitor

A300 corrosion inhibitor is the inhibitor of choice for VERTAN® V665 and VERTAN®  V675 Chemical Cleaning Process which represents a dramatic breakthrough in corrosion inhibitors. Used with our Vertan® chelant, A300 offers superior corrosion protection and unmatched solubility. No other inhibitor on the market has the most efficient metal protection with reduced hazards and low toxicity features of A300.


After Chemical Cleaning stage, Passivation is a part of our patented VERTAN® V665 & VERTAN® V675 Single-fill Chemical Cleaning Process. The passivation stage, after chemical cleaning stage, protects the system internal surfaces by making it relatively inert to reactions associated with corrosion which is attributed to the formation of a very thin protective iron oxide layer.

Proven Results

Before After
Boiler Steam Drum 1
Before After
Boiler Steam Drum 2
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