Dear Hussien Treatment ...

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Dear Hussien


Treatment equipment to remove dispersed oil from water relies on one or more of the following principles:

In applying these concepts, one must keep in mind the dispersion of large oil droplets to smaller ones and the coalescence of small droplets into larger ones, which takes place if energy is added to the system. The amount of energy added per unit time and the way in which it is added will determine whether dispersion or coalescence will take place.

The greater the difference in density between the oil droplet and the water phase, the greater the vertical velocity; that is, the lighter the crude, the easier it is to treat the water.

The higher the temperature, the lower the viscosity of the water and, thus, the greater the vertical velocity; that is, it is easier to treat the water at high temperatures than at low temperatures.

Small oil droplets contained in the water-continuous phase are subject to the competing forces of dispersion and coalescence. An oil droplet will break apart when kinetic-energy input is sufficient to overcome the surface energy between the single droplet and the two smaller droplets formed from it.

The greater the pressure drop (and, thus, the shear forces that the fluid experiences in a given time period), the smaller the oil droplets will be. Large pressure drops, which occur in small distances through chokes, control valves, and instruments, result in small oil droplets and water that is harder to treat.

Within water-treatment equipment, in which the energy input to the fluid is very small, the process of coalescence takes place; that is, small oil droplets collide and form bigger droplets. Because of the low energy input, these are not dispersed.

The Macro Porous Polymer Extraction (MPPE) Technology is a highly effective, fully automated, remote controlled and guaranteed method for removing dissolved and dispersed hydrocarbons from water with efficiencies of 99.9% down to below ppb levels.

The Macro Porous Polymer (MPP) acts as a carrier for nontoxic and biodegradable extraction media and absorbs and extracts hydrocarbons from water. The miniscule plastic spheres are capable of reducing contaminant concentrations in water by a factor of more than 1 million, which means that concentrations of thousands ppm (parts per million) can be lowered to below 1 ppb (parts per billion). This is done in only one cycle. The water purification provides clean water for recycling or discharging, and yields almost 100% pure hydrocarbons suitable for reuse. In the MPPE water treatment process, hydrocarbon-contaminated water is passed through a column packed with MPPE particles. The particles are porous polymer beads that contain a specific extraction liquid. The immobilised extraction liquid removes the hydrocarbon components from the process water. The purified water can either be reused or discharged.

If the quantity of HC in water is more then distillation process may be used. And in stripping section steam can be introduced direct and HC overhead product can be recover from top product, The reflux stream also given for mass transfer and purification.

Oil Free Hydrocarbon Removal Matrix (HRM)

The oil free technology is engineered to remove hydrocarbons from water instantly. Oil free immobilizes and permanently bonds the hydrocarbon compounds without developing pressure. The Oil free technology removes oily sheen, synthetic and natural oils, BTEX, PCB's, solvents and organically bound metals. The pressure drop across a saturated Oil free cartridge is less than 1 psi. Oil free technology is available in turn-key systems with operational ranges from 1 gpm - 5000 gpm.

Applications

Regards,

Prem Baboo




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