焦油馏分

But because of its high moisture content, high oxygen content and some impurity, biomass tar needs to be purified or modified before using it as bunker oil.

生物质焦油150℃以下下层馏分的主要含量为羧酸类和酚类物质等多种有机化合物，具有较高的综合利用潜力。

The new elucidation of distributed activation energy was given in which not only an analytic expression of activation energy was obtained for the first time,but also the theoretical proof of Miura′s integration method in DAEM model was realized.

对分布活化能模型进行了新的理论阐述，不仅给出了分布活化能模型中活化能项的解析表达式，得到了Miura积分法的理论证明，还系统研究了这一新的DAEM表述对焦油馏分模拟蒸馏二级反应体系的适用性。

The pumps have been specifically designed to avoid reverse fractionation, minimize tar formation and pump back streaming.

该泵是专门设计用来防止反向分馏、减少焦油的形成和泵回流。

With gas chromatographic and mass spectrum analysis technology,the chemical composition of biomass tar and its distillation s were analyzed.

主要采用色谱-质谱联机成分分析法对生物质焦油及其馏分试样进行成分分析。

In the experiment distillation method is adopted and distillations in the different temperature range are collected.

组成成分分析采用色谱—质谱联用分析技术，得到生物质焦油及其馏分的组成成分；热动力学特性采用综合热分析仪进行研究，通过测定不同气氛和不同升温速率的热重曲线、微商热重曲线和差热曲线，定性分析生物质焦油及其馏分的蒸发和燃烧等特性，并定量求解热动力学参数。

By studying TG curve, DTG curve and DTA curve recorded by the computer, nature of the evaporation and combustion of biomass tar and its distillations is analyzed and parameters of their thermal kinetics are computed.

生物质焦油150℃以下上层馏分和150℃～210℃馏分含有多种有用的有机化合物，部分化合物的含量较明显，经济价值很高，具有一定的分离提纯价值。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。