The principle of this equipment is to prevent the accumulation of sludge on the bottom of the crude oil storage tank using high discharging oil circulating pump, NEOTECHKOREA’s rotary jet mixer. The high discharge pressure of jet mixer breaks the sludge into small pieces after which the sludge is decomposed and dissolved in the crude oil while the sludge floats up.
Characteristics of crude oil storage tank and sludge Oil storage tank
The asphalt, tar, wax, etc. in the crude oil deposit on the bottom of the tank while the oil is stored in the tank and these deposits become high viscosity sludge. It is hard to remove the sludge except mechanical crushing or chemical dissolving methods. Due to the oil washing system, all sediments such as rust, scale, mud, sand, etc. in the cargo oil tank flow into the storage tank. As the sludge accumulates, many problems occur such as oil loss
and reduced storage capacity of tank.
The sludge contains 80-90% of oil and wax which are useful to recycle. Depending on the place of the oil production, oil contains inorganic substances such as sand, mud, iron; sludge containing oil, water, emulsion; organic substances such as oil, wax and asphalt. If these compositions of sludge sediment on the bottom of oil tank, the following problems will occur.