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Wax Filtration Plant – Chevron

Posted on 28 Apr 2022, Thu


Chevron Nigeria Limited (CNL) (75% share) and the Nigerian National Petroleum Company (NNPC) (25% share) constructed the 33,000 barrels per day (bpd) Escravos Gas-to-Liquids (EGTL) plant in Escravos, Nigeria.

The plant commenced operations in mid-2014. Located approximately 100 km southeast of the Nigerian capital Lagos, the Escravos site receives gas from Chevron-operated Escravos Gas Plant (EGP).

The $10bn EGTL project is an integral part of the owner’s overall gas use strategy, which includes domestic natural gas sales, regional natural gas sales through the West Africa Gas Pipeline (WAGP) and international sales of GTL products.


The Wax Filtration technology was developed in South Africa on behalf of Sasol. Due to the significant intellectual property, the owners of the technology were very specific about what they wanted the Wax Filtration Modules to be built in South Africa on a “Black Box”, and Non-Disclosure of technologies agreement. 

Duys were contracted to build the Modules, fully trail assemble in our yard, manage subcontractors, disassembled the structures into 8 modules for shipment and supervise assembly by others in Nigeria. The contract was for approximately 1500 tons of steel structures, piping, and installation of the “Black Box” components. The build and assembly took place over 8 months, with an additional 2 months on-site in Nigeria thereafter.

During this time, Duys worked very closely with the Chevron project team, the technology providers and the other contractors, and despite a very tight project schedule, the project was very successful thanks to all involved.
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