removal of oil residues - sitas tech
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Removal of Oil Residues
EBOCLEAN 1210 - Additive for the Removal of Oil Residues in Tanks and Pipelines
Chemical Tank Cleaning and Recycling of Oil Residues An unsolved problem of crude oil industry is the environmentally accep-table removal of oil residues in tanks and pipelines. In the course of time highly viscous oil accumulate at the ground of the storage tanks. The capacity of these tanks is several thousand cubic meters.
To this day the most usual cleaning method for this storage tanks is the mechanical treatment to remove the oil emulsive and solid sediments. This method is costly in terms of time, produces emissions and causes high costs for the disposal of the residues.
The chemical tank cleaning and recycling of oil residues reduce the cleaning time in comparison with the mechanical cleaning. The grave advantage of the chemical cleaning is the recycling of approx. 90 % of the oil emulsive sludge. This will protect the environment, because up to 90 % of the sludge can be reused in the refinery and expensive actions of disposal are not necessary anymore.
Technical Data Description: light, clear liquid Density [g/cm³] approx. 0.8 Solubility in water: emulsifiable
Application and Properties EBOCLEAN 1210 is a metal cleaning agent containing solvents which can be used as additive for kerosene, diesel fuel resp. fuel oil, to remove oil residues in tanks and pipelines. It consists of aliphatic hydrocarbons, surfactants and organic corrosion inhibitors.
EBOCLEAN 1210 even dissolves viscous crude oil residues resp. makes them pumpable so that such substances can be reused in the refinery and expensive actions of disposal are not necessary anymore.
Dosing: EBOCLEAN 1210 can be used in undiluted form to dissolve persistent scales in the crude oil industry. For cost reasons, however, we recom-mend the application of 10 – 20 % EBOCLEAN 1210 in the kerosene at continuous recirculation of this cleaning mixture. The temperature may vary from 20 – 60 °C. The performance of the cleaning process will be improved at increasing temperature. The exact dosing rate highly depends on the kind and viscosity of the oil residues. A very rough guide would be 500 l cleaning solution for 1 m³ oil residues, i.e. 50 – 100 l EBOCLEAN 1210 per m³ oil sludge to be dissol-ved.
Storage: In closed original packages EBOCLEAN 1210 is storable for at least one year. Protect from frost and humidity.
Packing:• 160 kg PE-barrels • 800 kg containers Other packing sizes on request.
Description of Cleaning Process: The cleaning process depends on the kind and viscosity of the oil resi-dues. Below the cleaning process will be described exemplary with integ-rated reuse of oil residues and cleaning liquid.
1. EBOCLEAN 1210 will be mixed with the calculated amount of kero-sene and pumped to the storage tank. The cleaning liquid can take effect at the surface of the oil residues only. 2. Therefore the cleaning liquid will be pumped out of the tank and retur-ned to it with the effect, that fresh cleaning liquid has contact to the sur-face of the oil residues. Kerosene and oil residues in solution are pumpa-ble. When all oil residues are in solution the cleaning process is finalized. 3. Agitators, assembled on the roof of the tank, can support the process of dissolving. 4. When all oil residues are of liquid consistence, the mixture can be pumped to the refinery to be redistilled to new products. Only the indisso-luble fraction remains in the tank and has to be disposed or incinerated. 5. The indissoluble fraction must be mechanical removed from the tank and disposed. The minerally amount of oil residues is depending to the quality of oil 4 to 10 %. Now the inside walls of the tank can be cleaned by a high-pressure cleaner and after that the tank is ready for inspection.
The Advantage of Chemical Tank Cleaning and Recycling of Oil Residues
Reuse of 90 % of the oil residues Reduction of the amount of waste deposits up to 90 % Time required to clean the tank chemically is only half of the time for me-chanical cleaning
This procedure of tank cleaning sets new economical and environmental standards.
