Just as the International Maritime Organization (IMO) has just adopted a new strategy for greenhouse gas emissions, the industry is very optimistic about the application of alternative fuels such as liquefied natural gas (LNG) in the shipping industry. However, some scholars have said that LNG fuel will also release greenhouse gases during its use and production. Shipping companies should carefully consider this. 90 deg elbow
On April 13th, the IMO has just passed its emission reduction strategy. Specifically, by 2050, the total greenhouse gas emissions from the shipping industry will be at least 50% lower than in 2008, and zero carbon emissions will be realized as soon as possible in this century. In addition to reducing emissions, the strategy also stipulates that by 2030, energy efficiency will increase by 40% over 2008 and strive to increase by 70% by 2050. To meet this requirement, clean fuels, including LNG fuels, biofuels, etc., have become the first choice for ship fuels.
But recently, Tristan Smith, a maritime academic expert at University College London, said that shipping companies should carefully consider whether LNG fuel can help reduce greenhouse gas emissions.
He believes that “LNG will not necessarily reduce greenhouse gas emissions. The main problem is that LNG will emit methane during the combustion and production and supply chain processes, while methane is a powerful greenhouse gas and has a destructive effect on the environment. Bigger." pipe fittings
He further explained that with regard to the application of LNG in the shipping industry, there are mainly scientific and cost disputes. "From a scientific point of view, LNG is not necessarily a climate-friendly fuel at present. In addition, from a cost perspective, companies need to invest billions of dollars for the improvement of engines, related equipment and supply chains to ensure that Methane will not be emitted during use.” He added, “But the fuel chosen by shipping companies must be considered for their own cost, so whether this investment is reasonable needs to be considered.” welding overlay
At the same time, industry giant Maersk Line is also studying alternative fuels. Søren Toft, chief operating officer of Maersk Line, recently said on the capital market day in Copenhagen: “LNG is still considered a possible alternative fuel.” However, he also stressed that the prospects for LNG as a marine fuel are still in the assessment stage. Can not be conclusive.
John Kornerup Bang, head of sustainable development strategy at Maersk Group, said: “We are looking for all future technologies that are technically feasible. But so far, we have not yet found an economically viable alternative to LNG. We are working with LNG suppliers. The discussion also welcomes constructive partners to conduct research with us and share development costs." slip on flange
For some time, the debate about LNG applications has been the same as the issue of “first egg or chicken first”. Shipping companies hope that large-scale ports will first install LNG supply facilities, and then use LNG as marine fuel; the port would like to see the shipping companies use a large number of LNG shipping vessels and invest in the construction of related facilities. To solve this problem, I am afraid it will take time and further research on LNG fuel.