Mammoet lifted the five components at three different lifting positions: two columns at the crude distillation unit (CDU) and vacuum distillation unit (VDU), followed by three reactors and other lighter columns at the full-conversion hydro-cracker unit (FCHCU). The Stage 1 reactor at the FCHCU area weighs 1,646 Ton, making it the heaviest reactor ever installed in India.
Owned by a state-owned company Hindustan Petroleum Corporation Limited (HPCL), the project entails modernisation and enhancement of its refining capacity from 8.33MMTPA to 15MMTPA at a new process area on the east of its original plant.
L&T Hydrocarbon Engineering, the biggest engineering, procurement and construction (EPC) contractor in India engaged Mammoet’s MSG 80 ring crane, which has a 3,000 Ton lifting capacity and the ability to lift several items from a single position, due to its height. Unlike a gantry system, the MSG 80 does not need a concrete foundation.
With support from L&T, Mammoet took the modularised transport approach by moving the crane in big blocks to expedite the two relocation activities.
Another lifting solution employed at the site was a 2,000T capacity tailing frame mounted on a self-propelled module transporter (SPMT). For lifting of the Stage 1 reactor, none of the cranes on site had a sufficient lifting capacity to function as a tailing crane for MSG80. Bringing in a heavy-duty crane just for one lift was not an economical solution on top of the fact that the site was a highly congested area with no practical space to place such a large tailing crane. The in-house designed tailing frame on SPMT eliminated the need of a heavy-duty tailing crane and saved space, which improved the overall cost efficiency and productivity of the surrounding construction activity.
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