If we can understand the composition of petcoke, then its cleaning becomes easy and smooth. Chemically PET coke is heavy oil residue in solid form, So for cleaning of heavy and hard deposition of petcoke, its softness must be required. Coldwash HD ( For better result can be used more powerful product RXSOL ORG3 ) easily penetrate in PET COKE residue and its cleaner, emulsifier and much more reacts with coke deposition to make a water-soluble emulsion. Then use water with the high-pressure machine, if water temperature can maintain 50 - 60 degree, then cleaning performance result can be achieved.

If the ship hold surface is contaminated with oil, fat and other greasy deposits then simply spray cold wash ( or RXSOL ORG3, more powerful )  on surface area and leave to get dissolved fully. Then after 20 minutes to 1 Hrs apply water with high-pressure machine And if solution temperature can maintain 50 - 60 degree, then cleaning performance can be increased.