NYK and Nippon Yuka Kogyo have jointly developed a new fuel-oil additive effective in dispersing sludge and reducing fuel consumption in VLSFO.
YK and Nippon Yuka Kogyo have been investigating the properties of VLSFO as one of the measures to comply with SOx emission requirements, and in 2019 developed the sludge-dispersing fuel oil additive Yunic 800VLS.
We observed Yunic 800VLS is effective against most of deteriorated compliant fuel oil, and with taking account into present fuel problem situations, we feel our main target need to be changed to reduction of fuel for contribution of environmental protection, from sludge trouble prevention
Both companies had been developing the Yunic 800VLS “grade-up” version, which has more powerful sludge dispersion characteristics to cover the rest of stubborn deterioration fuel, and provides fuel consumption reductions.
The additive enhances sludge dispersion and improves combustion. In three fuel consumption ratio reduction tests conducted with compliant fuel oils in Japan and overseas, the companies observed fuel consumption was reduced by up to 1.2% compared to when the additive was not used, and carbon monoxide (CO) emissions were also reduced.