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From the Lab to the Field, how new chemistry can solve the operating issues of 2-stroke engines transiting ECA zones
【作者】
Valérie Doyen
【摘要】
该论文已在赫尔辛基举行的第28届CIMAC大会上发表,论文的版权归CIMAC所有。ABSTRACT Up until January 2015 vessels transiting ECAs switched between high sulphur residual fuel and low sulphur residual fuel. For the liners operated in and out of ECAs, it was found not to be absolute necessary to switch cylinder oils as the engines were operated safely with a 70BN conventional cylinder oil. Since January 2015 vessels are running on high sulphur residual fuel such as HS RMK700 (<3.5% Sulphur) and ULSFO or DMO (<0.1% Sulphur). With these very different fuels it is now necessary to use two cylinder oils typically a BN 70 and a BN25. This adds complexity particularly with vessels with one day tank. At switch over the lubricant in the day tank risked ending up with a BN between 25 and 70 and not 25 or 70 as required. To further complicate matters, the sustained use of slow steaming combine with the TierII engine tuning has promote the introduction on the market of engines that are more challenging to lubricate. New generation engines and de-rated engines require a BN 100 lubricant. So the challenge now is to switch between a BN 100 and a BN 25 cylinder oils in coordination with the fuel switchover. As operators we decided to look for alternative simpler solutions. After several exchanges, TOTAL came to us with a new generation of lubricant. This cylinder oil will build on the Single Oil already proposed to the market 8 years ago by TOTAL. This will allow the use of only one lubricant in operation with any kind of fuel, even when operating in ECAs for at least 10 days. With a new organic chemistry called Ash-free Neutralising Molecules (ANM), more efficient neutralization is obtained, as well as an improved resistance to deposit formation. Without the mineral component hard deposits can be avoided. This innovative way of formulating a lubricant has been evaluated in an extensive field trial in comparison with classical formulations. The aim of the field test was to demonstrate that operation and technical issue can be answered by the use of innovative chemistry.
【会议名称】
第28届CIMAC会议
【会议地点】
芬兰 赫尔辛基
【下载次数】
2

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