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首页> 外文期刊>日本舶用機関学会誌 >Utility and the method of approximate calculation of carbon distribution and structural group analysis for marine heavy fuel oil
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Utility and the method of approximate calculation of carbon distribution and structural group analysis for marine heavy fuel oil

机译：船用重质燃油的碳分布和结构基团分析的实用方法和近似计算

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We developed the method of approximate calculation of the percentage of paraffinic carbon (%C{sub}P), the percentage of naphthenic carbon (%C{sub}N), the percentage of aromatic carbon (%C{sub}A) and the average number of naphthene ring per molecule (R{sub}N), the average number of aromatic ring per molecule (R{sub}A) from density g/cm{sup}3 @15℃, kinematic viscosity mm{sup}2/s @50℃ and mass % sulfur content of marine C heavy fuel oils. It be possible to distinct the property (straight series, visbreake series, FCC series) using this method and as the results, it will be possible to guess from enginetroubles before the fact, and the countermeasure of prevention will be accepted properly. The method for calculation distribution and structural group analysis of petroleum oils from density, refractive index, average molecular weight and sulfur contents is defined by ASTM D3238. On this method, the inconvenience appears that it couldn't apply to residual heavy fuel oils having high sulfur contents. In that place, we developed the method applicable to petrolume less than sulfur content 5.0wt%.
机译：我们开发了近似计算链烷烃碳百分比（％C {sub} P），环烷碳百分比（％C {sub} N），芳烃百分比（％C {sub} A）和15℃时密度g / cm {sup} 3，每分子平均环烷烃环数（R {sub} N），每分子平均芳族环数（R {sub} A），运动粘度mm {sup}船用C重质燃料油在50℃下2 / s和硫的质量％。使用此方法可以区分属性（直线序列，减粘序列，FCC序列），结果是，有可能在事前从发动机故障中进行猜测，并且可以适当接受预防措施。 ASTM D3238定义了根据密度，折光率，平均分子量和硫含量计算石油分布和结构基团的方法。这种方法的不便之处在于，它不适用于硫含量高的残留重质燃油。在那个地方，我们开发了适用于硫含量低于5.0wt％的汽油的方法。

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