Page 83 - 62

Engineered Heavy Lifting

and Transport for On-shore

and Off-shore Plants and Buildings

Mammoet Italy is working on the new Yaoundè Stadium in
Cameroon providing four cranes, including a tracked one with a
600 ton lifting capacity, that is used to lift and install the stell
structures of the building, starting from the western tribune and
then going to the lifting and positioning of the roof covering the
stadium stands

uring a signing ceremony in Lagos on, January
16 this year, the Nigerian Dangote Group of
DCompanies and Mammoet, the global leader in
engineered heavy lifting and transport, signed the
contract for the new 12-billion dollar refinery is being
built by Dangote in the Lekki Free Zone to the South-
East of Lagos. It will have s a capacity of 650,000
barrels per day and will boost economic growth in the
country and generate thousands of jobs. The refinery is
scheduled to come on stream in 2019 and will increase
the country’s oil exports and reduce its reliance on
imports of refined petroleum products. The Lekki
refinery covers a 2100 hectares area and will be the
largest single-train facility in the world.
The refinery will include specilized plants for production
of urea (3 million ton per year), polypropilene (3.6 million
tons per year) and natural gas processing (85 milion
cubic meters per day of gas brought to Lekki via a
1,100 km-long submarine gas pipeline). Total refinery economy. With the aim to increase output, the Koren
output will 33 million ton per year of oil-derived S-OIL company was looking to expand the refinery. A
products, including gasoline, diesel and jet fuel and a joint venture lead by Daelim was engaged to construct
number of chemical intermediates. a Residue Upgrading Complex (RUC). The new facility
Under the contract Mammoet, will be transporting, would convert low value residue into high value
lifting and installing all over-dimensional cargo for the products such as gasoline and olefin downstream
refinery. The Dangote contract is but the last of a long products. As part of the construction of the RUC, three
series of jobs Mammoet completed in the last few distillation columns needed to be lifted into an upright
months in the expanding oil-and-gas, chemical and position. The challenge posed was that the columns
industrial plant construction, upgrading, including weighed up to 2000 tons each and had to be lifted
integrated transportation and lifting operation, so called within the confined space of the running refinery. The
“factory-to-foundation”. initial plan to use a gantry system was projected to take
three months to complete because of the need to
relocate it for each lift.
Working both on-shore … However, before these works could begin the project
The Onsan refinery is South Korea’s premier refining experienced a delay, leaving the installation behind
facility and a major contributor to the country’s thriving schedule. To optimize the construction schedule and

IndustrIal Plants - May 2018
79