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[ CPI Coalescers ]

The process principle

CPI (Corrugated Plate Interceptor) or TPI (Tilted Plate Interceptor) separators are predominantly used in separation of free oil from effluent water or suspended solids for oily water treatment in oily water systems in order to save space and improving efficiency compared to API separators.

The principle of difference in gravity between the phases (liquid – liquid or solid – liquid) is the basis of the separation of the two phases (Gravity Separation).
The effectiveness of this technique is affected by various factors such as difference in the density, viscosity, temperature, turbulence, and also the nature of impurity etc. and in some cases chemical coagulation and flocculation is needed to improve the separation.

Unidro CPI equipment

Unidro provides engineered units, designed case by case to fit all process and project requirements.

When the stream to be treated is Produced Water, CPI has to be installed in closed drum, normally blanketed with fuel gas or nitrogen to prevent oxygen from air to dissolve into the water. The drum can be an atmospheric tank or, when the downstream system requires feed pressure, the unit shall be installed in pressure vessels.

Material selection for vessels and for corrugated plate packs is carefully evaluated for each case in order to prevent corrosion and guarantee equipment lifetime even in the severe conditions occurring when produced water is handled. PE, GRP, SS, special alloy steels are the available choices for the plate packs to meet each project requirements. Vessels may be lined or metal internal surface may be properly designed including corrosion allowance and/or sacrificial anodes.

Biomass Power Plant
Copenhagen’s ambition is becoming the world’s first CO2-neutral capital by year 2025, and the whole project was born as environmental-friendly.
North Field East Project (NFE)
Unidro has been awarded the water treatment packages by CTJV, a joint venture of Chiyoda Corporation (Japan) and Technip Energies, for the North Field East Project (“NFE”). The NFE Project covers the delivery of 4 mega trains, each with a capacity of 8 million tons per annum (“Mtpa”) of Liquified Natural Gas (“LNG”), and associated utility facilities.
Southern US
The availability of low cost natural gas has reduced operating costs of large petrochemical plants down to modern day record lows which has created a “once in a century opportunity” for the petrochemical industry.
KNPC
This is one of the strategic mega-projects of Kuwait National Petroleum Company (KNPC) with the goal to upgrade and expand the two existing KNPC refineries at Mina Abdulla (MAB) and Mina Al-Ahmadi (MAA).
Papua New Guinea LNG Project
Started in 2008 and completed in 2014, Papua New Guinea (PNG) LNG project is an integrated development that is commercializing the gas resources of Papua New Guinea.
Rasgas, LNG and Gas Processing Trains, Ras Laffan (Qatar)
Ras Laffan Liquefied Gas Company (Rasgas) was established in 1993 by Qatar Petroleum and ExxonMobil.