Multi-fuel prismatic tank lowers barriers to adopting optimal alternative fuel

摘要

DNV has issued an approval-in-principle (AiP) to a multi-fuel tank design that will allow iron ore carriers chartered by Vale to be adapted to operate on LNG, methanol and ammonia. The Brazilian mining giant said the tank design was developed in partnership with Norwegian companies Brevik Engineering and Passer Marine. Passer Marine and Passer Langyu, both part of the Passer Group, specialise in cryogenic insulation for cargo tanks, offering various solutions for IMO type A, B and C tanks, and piping for LNG carriers. Vale said the multi-fuel tank design emerged from its Ecoshipping programme, which investigates the use of technologies to reduce carbon emissions from shipping. A preliminary study estimates that emissions reductions can range from 40% to 80% when a Guaibamax-class very large ore carrier (VLOC) is powered by methanol and ammonia, or up to 23% in the case of LNG.