Standard test method for determination of octane number of spark - ignition engine fuels by on - line direct comparison technique 用在线直接比较技术测定火花点火式发动机燃料辛烷值的标准试验方法
Even worse , the products with vapor pressures corresponding to gasoline were largely linear hydrocarbons with poor octane numbers 更糟糕的是，蒸气压与汽油相当的产品主要是低辛烷值的链状烃。
Based on the above research results , an online nir analyzing system has been developed to predict gasoline ron 基于上述研究成果，并结合炼油过程的实际情况，研制了汽油辛烷值的近红外光谱在线分析系统。
Some properties of petroleum products in refinery such as gasoline octane number and diesel cetane number are necessary to be online monitored 在炼油过程中，通常需要对产品的关键品质比如汽油辛烷值或柴油十六烷值等进行在线监测。
The introduction of acidic aluminosilicates as cracking catalysts in the 1940s led to higher yields of branched hydrocarbons with improved octane numbers 40年代作为裂化催化剂的酸性的铝硅酸盐的引入提高了辛烷值较高的支链烃的产量。
This system has been installed in a catalytic reforming unit in a refinery , and industrial applications show its good performance in the prediction of ron 该系统已用于某炼油厂重整汽油研究法辛烷值的在线分析，实际应用显示了其良好的预测效果。
Along with the value - added utilization of methanol to a high value clean gasoline , xxxxwill achieve a net gain of approximately 71 million octane - barrels per year 除了把甲醇转化为高价清洁汽油增加附加值外， xxxx将获得每年大约7100万辛烷值的净收益。
Experimental results show that the pls model gains higher prediction accuracy with the mean prediction error 0 . 2 octane number . 3 实验结果表明pls模型在预测精度上优于mlr模型，其平均预测误差0 . 2个辛烷值单位，完全可以满足实际应用的需要。
An alternative increasingly being used is ethanol , which has an octane rating of 108 or 110 ; gasoline with 10 percent ethanol is marketed as gasohol 还有一种逐渐普及的替代方案是乙醇，乙醇的辛烷值为108或110 ，添加10 %乙醇的汽油在市场上称为酒精汽油。
However , the yield of gasoline was still low relative to the amount of petroleum processed , and the quality , as measured by octane number , was inadequate for high - performance engines 然而，相对于所消耗的石油来讲，汽油的产量仍较低，而且其质量，以辛烷值的大小来衡量，也不适用于高性能的发动机。
