Mammoet Demobilizes Equipment at Dangote Refinery

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With the final 1,240tonne propylene mounded bullet installed at Dangote Petroleum Refinery and Petrochemical complex in Nigeria, Mammoet is demobilizing equipment it has deployed there over the past two years.

Mammoet was contracted to assist in the construction of the refinery in 2018. The scope consisted of receiving, inland transport, on site lifting and installation of hundreds of refinery components.

Sourced globally and consisting of multiple shipments, these components were delivered to the purpose-built Dangote Quay Lekki in Lagos. They were then transported to the project site. Prior to installation, the components were stored temporarily on freshly paved Enviro-Mat; which Mammoet describes as its innovative and sustainable solution for native soil improvement, which was deployed to provide the main crane hard stands.

To optimize the construction process and schedule and ensure the highest levels of construction uptime, Mammoet says it has drawn on its diverse fleet of heavy lifting and transport equipment. “This has included conventional trailers and trucks, Self-Propelled Modular Trailers (SPMTs), plus mobile and crawler cranes ranging in capacity from 250tonnes to 1,600tonnes,” the report said.

Mammoet reportedly brought two of its largest super heavy lift ring cranes with lifting capacities up to 5,000tonnes – the PTC 200 DS and PT 50 – to bring maximum efficiencies to the execution of the project. Their lifting capacity, combined with a long reach and a small footprint, enabled more efficient approaches to lifting and installing heavy and oversized components, such as a 3,000tonne regenerator- which Mammoet claims is “the heaviest item ever transported over a public road in Africa” and a 2,000tonne crude column “ – the largest crude column in the world.

Throughout the duration of the project Mammoet transported 239 items from the jetty to site, with a combined weight of 84,905tonnes and installed 154 items with a combined weight of 68,415tonnes, Africa Oil + Gas Report said.

Over 100 Mammoet professionals worked on this project for around two years adhering to the strictest safety standards – ensuring transportation and installation activities were efficiently scheduled and safely executed. Precise planning and thorough coordination were crucial to minimize delays and additional costs, maximizing the project’s efficiency.

During the project, Mammoet and its partner in Nigeria – Northridge Engineering, contributed to the local community by ensuring that the operations created value and opportunities by supporting local employment, training and encouraging local businesses to be part of the supply chain. Fifty four local employees were crucial to this work, covering a range of skills including SPMT operators, crane riggers and drivers. Mammoet also subcontracted work to 43 Nigerian businesses throughout its two years on site.

Dangote refinery is a 650,000 barrels per day (bpd) integrated refinery and petrochemical project under construction in the Lekki Free Zone near Lagos, Nigeria. It will be Africa’s biggest petroleum refinery and the world’s biggest single-train facility.

Once onstream, the refinery will increase the country’s oil exports and reduce its reliance on imports of petroleum products, thereby boosting economic growth in Nigeria and generating thousands of jobs.

Chibisi Ohakah, Abuja


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