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Industrial Chemical Cleaning

Radical Cleaning programs include Precleaning and Passivation. Both these processes are a critical preparatory component of commissioning activity before taking plant units and equipment online. Precleaning and passivation are also conducted after shutdown and turn around. These treatment programs are essential because pre start up actions can increase system life expectancy and efficiency and reduce corrosion and fouling in the long run.

Chemical Cleaning

Chemical pre-cleaning activities generally consist of removal of

Extraneous matter
Dirt, dust, grease, oil
Welding slag
Loose rust and oxide scales
Other debris that can form deposits within the system and interfere with operating equipments.

Passivation

After metal oxide layers are removed during cleaning, the equipment is prone to corrosion. Hence passivating chemicals are administered in the system to promote rapid formation of protective corrosion inhibitor film on the cleaned metal surfaces. Key reasons for passivation

Effective passivation is imperative for optimum corrosion inhibition.
Regular chemical treatment will function well only in the system where the initial passivation is correctly done

Optimal cleaning and passivation is combined with the following to ensure optimum efficacy

Use of heat for better cleaning/passivation
Flushing activities
Continuous monitoring of influent/effluent water parameters
Formation of loops for closed/open circulation

Equipment We Clean

Boilers
Piping Systems
Heat exchangers
Storage Tanks
Reactors
Condensers/Chillers/Compressors