Kriya Corporation

1

MECHANICAL CLEANING PROGRAMME

AGITATION, MOVEMENT AND PHYSICAL SEPARATION ARE TYPICAL COMPONENTS of mechanical cleaning. Usually the sludge must be removed from the tank before implementing a hydrocarbon recovery method. Removal presents quite an obstacle if the sludge is apshaltic, very compact or not fluid.

Once removed, the SLUDGE IS TREATED TO RECOVER THE HYDROCARBON. External recovery systems include belt presses, hot pit, centrifuges and portable storage tanks which allow separation. These methods do not recover all the hydrocarbon, leaving residual amounts on the solids which may classify them as hazardous. Hazardous waste is reduced, but not eliminated. Mechanical methods can also impact tank integrity, thereby risking odor nuisances, vapour release and soil contamination.

2

WASTE MINIMIZATION CHEMICAL PROGRAMME

The chemical methods discussed here minimize waste through source reduction and reduce recovery. Crude tank sludge is transformed into high quality crude, water and nonhazardous solids.

To do this, water and a chemical are added to the tank along with a diluent or light oil in which the recovered hydrocarbon can get dissolved. The water layer is heated to solubilize the surface area of the sludge, allowing the chemical penetrate to break up the sludge. THe density of the primarily oil laden sludge forces the sludge to ascent through the water to the diluent / water interface while the cleaning solution extracts solids and water from the oil. At this interface the chemical continus to penetrate the sludge, stripping the solids out. An emulsion breaking component assures separate oil and water layers. The heavy hydrocarbons from the sludge disperse evenly through the diluent for recovery.

DISOLVITE is a wonder chemical which dissolves the crude-oil sludge in petroleum refinery and pipeline oil storeage tanks and converts sludge into crude oil, water and residual mud and muck. It is a liquid additive that disperses the sludge by lowering the interface tension between sludge and oil, resulting in a homogenous mixture.

DISOLVITE is environment friendly chemical which elimeinates the manual cleaning of the sludge. The entire sludge is dissolved, mud is removed out of the tank and tank is ready for recommissioning within 15 days. The major technical, financial and environmental advantages are as under :

1.	No sludge is required.
2.	No idle period of 4 to 8 months for recommissioning of huge capactity crude oil storage tanks, just 15 days only, saving approximately Rs. 5 to 12 lakh (US $ 10638.29 to 25531.91) per tank according to the size of the tank.
3.	No effect on environment.
4.	No spillage of sludge on roads, which normally occurs if sludge is removed manually.
5.	No fire hazards, human accidents.
6.	No paper work for inviting tenders for sale of sludge from lagoons and nuisanse of vehicle traffic inside installation for removal of sludge.
7.	Lot of saving in foreign exchange due to minimum 85% recovery of crude crude oil from sludge inside the tank itself in 15 days.
8.	Best way of house keeping of the oil installations.