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Catalyst Handling/Reactor Management
Chemical Cleaning/HC Decontamination
Sludge Treatment/Tank Cleaning
Sulphur Pastillation/Solidification
Environmental Services
Reclamation of Contaminated Sites

  Case History - Chemical Cleaning Case History  
Chemical cleaning station with two electrical centrifugal pumps
Alkylation plant -Sasol Augusta


Chemical cleaning of process equipment and piping;

Preliminary alkaline treatment to avoid any HF pockets with H2O which could cause corrosion. Alkaline treatment with solvents and dispersants in order to remove hydrocarbon traces;

Acid treatment in order to dissolve the very hard and compact fouling which mainly consists of iron fluorides and polymers;

Neutralization of the circuits;

Main associated problems:

Toxic fumes if the fouling is removed mechanically;

Acid residues trapped within the equipment.

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