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Chemical cleaning businessplan

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Chemical cleaning businessplan

  1. 1. CHEMICALCLEANING
  2. 2. SUBJECT OF PRESENTATION Product Knowledge (Sub-Contract, Ready Stock) Application System How to Replace Existing Supplier (Technical & Non-Technical Aspect) Cleaning Process All about chemical cleaning & other business (Marketing Assessment) How to get Customer : Information  Presentation  Closing (PO/MOU)  Survey  Handling  Invoice
  3. 3. BUSINESS PLAN Chemical Cleaning Boiler Treatment Cooling Treatment Media Filter (Carbon Filter & Ion Exchange) Seawage / Waste Water Treatment (Bacteriagard / Biopower  Nutrition for Bacterial) Maintenance Filter & Exchanger (Strainer Local & Import)
  4. 4. SCALE / DEPOSIT REDUCE THE HEAT EXCHANGE CONTINOUS CORROSION METAL WASTES PIPING/EQUIPMENT FAILURE
  5. 5. CLEANING SYSTEM What chemical / scale removal will be apply ? Concentration ? Temperature ? Bath or Circulation ? Time ? Circulation Flow Rate ? Dangerous for Installation/Material of Construction, People, Environment ? Need Mechanical / Manual Cleaning for Pre-Cleaning and Post-Cleaning ?
  6. 6. CIRCULATING SYSTEMSampling inlet Sampling outlet system system EQUIPMENT / SYSTEM Residence Time in Equipment/System = 30 minutes (pump capacities) FILTER MEDIA Residence Time in Circulation Tank = 2 - 3 minutes (Holding Volume of Circulation Tank) Blowdown CIRCULATION TANK Blowdown
  7. 7. ACID CLEANING AGENTS HCl (Hydrochloric Acid) Effective/Economically dosage = 5 – 10% Cleaning Temperature = 150 – 160oF(75 – 80oC) Static Soaking for few hours (for ex : 4 hours) Temporary circulation for mix the chemical for 10 minutes every hour (HCl is quite corrosive) Sometimes need Nitrogen Bubbling from lower header as one of mixing chemicals.
  8. 8. ADVANTAGES OF HCl Effective for carbonate-scale, especially in Boiler Aggressive solvent to deposits It is a good solvent for iron-oxide layered with copper It is the best solvent , containing 0,25% - 1% of Ammonium bi-Fluoride (NH4F-HF, ABF) to remove siliceous scale/deposits. ABF is converted to HF (Hydrofluoric Acid), which is one of the aggressive chemicals toward silicates Inexpensive
  9. 9. DISADVANTAGES OF HCl Very corrosive (Hazardous Material) Chemically inhibitor added to minimize corrosion potential to the base metal (film amine) (For example : Promex (0,1 – 0,3%) for 10% active material = 100 – 300 ppm Safety concern
  10. 10. ACID CLEANING AGENTS PHOSPHORIC ACID Mainly used as rust removal on carbon steel surface and sold under other names, such as “rust killer” or “rust remover” To convert Iron(III)-Oxide (rust) to a water soluble phosphate compound After treatment, the reddish-brown iron oxide will be converted to a black iron phosphate compound that may be scrubbed off.
  11. 11. ACID CLEANING AGENTS SULFAMIC ACID The main use is as a cleaning agent in substitution for hydrochloric acid, in the marine Industry, due to its safe storage characteristics. Use on stainless steel or copper alloyed surface (HE Equipment). Effective dosage = 1% (at pH = 2) Chemical cleaning process maintain at pH = 2, the cleaning process is finished if pH stable at 2 for 3 – 8 hours. Need dispersant / detergent no foam to bind the deposits.
  12. 12. ACID CLEANING AGENTS NITRIC ACID Mainly used for the pickling and passivation of stainless steel surfaces. Effective dosage = 5 – 10% Strong Oxydator
  13. 13. CHELATING AGENTS EDTA Mainly used as chemical cleaning boiler as chelating agents. Most popular is tetra ammonium EDTA Ammonia is alkaline, and a typical EDTA cleaning is performed at a pH of 9 to 9.5. The chemical Is much less corrosive than HCl and the process is performed at an alkaline pH, so if a bit of residual remains in the Boiler after the cleaning and rinses. It will not attack tubes like HCl will. The chemical itself is not as Hazardous as HCl, although an ammonia smell will be evident. Among its disadvantages are that the boiler must be fired (T > 100oC)
  14. 14. CHELATING AGENTS EDTA Another choice is the diammonium EDTA the pH of the solvent is adjusted to a range of 5 to 6. This solvent is more reactive than tetra ammonium EDTA Only needs to be heated to about 200°F (100oC) to be effective. However, the lower heating rate reduces the ability of the Chemical to circulate in the boiler.
  15. 15. CHELATING AGENTS CITRIC ACID similar to EDTA, it is a chelant and will bind both iron and copper ions. Two citric-based solvents are mono-ammonium and di- ammonium. Mono-ammonium, the solvent pH is around 3.5 to 4, and the optimum temperature range is 180°F–200°F (90–100oC)
  16. 16. CHELATING AGENTS CITRIC ACID Diammmonium Citric acid solutions have a higher pH of about 5 to 6, and this solvent is somewhat less aggressive toward deposits, so a higher temperature (240°F–275°F) is required for it to perform efficiently. Citric acid is not as strong a chelant as EDTA, and thus is not as popular for post-operational cleanings, although it can be doped with ABF to remove silica deposits. It is sometimes preferred for pre-operational cleanings, where iron oxides constitute the bulk of deposits, and where an aggressive acid Like HCl is not needed..

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