查询词典 aromatic hydrocarbon

The average relativeerror was 3.63%, less much than mostly used group-contribution methods for alkyne, chlorine derivative, iodine derivative, especially for alkane, bromine derivative, aromatic hydrocarbon, alicyclic hydrocarbon and sulfur-containing organic compounds.

对4068种有机物的正常沸点进行了估算，其平均相对误差为3.63%，总体估算精度明显优于相比较的基团贡献法，对炔烃、氯衍生物、碘衍生物，尤其是对烷烃类、溴衍生物、芳烃、脂环烃和含硫化合物的估算误差明显减小。

It is used to obtain saturated hydrocarbon and aromatic hydrocarbon before C9 through chromatographic analysis on reservoir samples with a temperature of 90℃.

该技术通过对储层样品进行90℃温度条件下的色谱分析得到C9以前的饱和烃及芳烃。

A method to finely separate saturated hydrocarbon and aromatic hydrocarbon by high performance liquid chromatography was introduced.

该文介绍了用高压液相色谱对族组分中的饱和烃、单环芳烃、二环芳烃及三环以上芳烃的精细分离方法。

Among the aromatic hydrocarbon, there are not only the compound of sulphur but also a lot of normal aromatic hydrocarbon.

硫的加入有利于提高残渣中的有机碳含量。

Besides these methods of introducing different halogen atom to aliphatic hydrocarbon and aromatic hydrocarbon were also reviewed.

根据目标分子结构的特点，可以分为两种情况：一是直接在脂肪醇中引入不同的卤素原子；二是在含有多官能团的芳香烃中引入卤素原子。

The invention provides a method for homopolymerizing conjugated dialkene or co-polymerizing conjugated dialkene and monovinyl aromatic hydrocarbon. The method comprises the following steps: the conjugated dialkene is homopolymerized or the conjugated dialkene and the monvinyl aromatic hydrocarbon are co-polymerized randomly. The method is characterized in that at least one alkali metal alkoxide compound expressed by the formula is used as a structure regulator; in the formula, R is linear chain or branched chain alkylidene radical having 1 to 10 carbon atoms; M is alkali metal selected from Li, Na, K, Rb and Cs.

本发明提供了一种使共轭二烯烃均聚或者使共轭二烯烃与单乙烯基芳烃共聚的方法，包括在阴离子聚合条件下使共轭二烯烃进行均聚或者使共轭二烯烃与单乙烯基芳烃进行无规共聚，其特征在于采用至少一种式所示的碱金属醇盐化合物作为结构调节剂，其中R为具有1-10碳原子的直链或支链亚烷基；以及M为选自Li、Na、K、Rb和Cs的碱金属。

Pseudocumene, mesitylene, 1,2,3-trimethylbenzene and durene among theheavy aromatic hydrocarbon from catalytic reformation in oil refinery areimportant fine chemical materials, they have not only high additional value butalso particularly useful property, therefore, the exploiting and utilizing the sourceof the heavy aromatic hydrocarbon are of large commercial benefit and promisingapplication future.

炼油厂催化重整装置重芳烃中偏三甲苯、均三甲苯、连三甲苯、均四甲苯等都是精细化工的重要原料，不仅附加价值高，而且具有独特的优良性能。因此开发利用重芳烃资源具有较大的经济价值和广泛的应用前景。

2 Petroleum crude oil: Refers to naturally occurring crude oil that is mixtures of hydrocarbon compounds that contain mainly paraffin hydrocarbon, cycloparafin hydrocarbon, and aromatic hydrocarbon.

二石油原油：指一种源于自然界之原油，为碳氢化合物之混合物，其主要成分为石蜡烃、环烷烃、芳香烃等。

2 Petroleum crude oil: Refers to naturally occurring crude oil that is mixtures of hydrocarbon compounds that contain mainly paraffin hydrocarbon, cycloparafin hydrocarbon, and aromatic hydrocarbon.

二石油原油：指一种源于自然界之原油，为碳氢化合物之混合物，其主要成分为石蜡烃、环烷烃、芳香烃等。你知道它的英文吗？

The results indicate the mutual effect exists between the single coals, which could increase the maximum of thermal weight loss obviously and has a small effect on the temperature extent of the weight loss. The main pyrolysis production of coal is coke, but the main production of waste plastics is tar; the yield of water became decrease and the gas became increase by adding the waste plastics. And the CRI and CSR decreased with the ratio of waste plastics in coal. The main ingredients of tar from blend coal are aromatic hydrocarbon and alkane, while those of waste plastics are alkane and alkene. The result of co-coking with coal and waste plastics make the light tar and the aromatic hydrocarbon increase obviously. The combustible ingredient(CO、H2、CH4) of gas from co-coking with coal increase at different ratio; Co-coking with coal and waste plastics could increase the combustible ingredient and thermal value of gas.

结果表明，废塑料与煤混合物在煤的塑性温度区间内存在明显的相互作用，使最大热解失重峰迁移，热解速率变大，且随着废塑料配比的增加呈现规律性的变化；煤热解产物固体焦炭为主，而废塑料的热解产物以焦油为主，废塑料的添加使得总体焦炭和水产率下降，焦炉煤气和焦油的产率增加，即共焦化呈现出明显的&增油减水&效应；随着塑料添加量的增加，焦炭热强度呈现劣化趋势；废塑料代替瘦煤配煤炼焦可使其比例提高到3%而不影响焦炭的质量；纯煤焦化所得焦油以芳香烃类和烷烃类为主，而废塑料热解焦油以烷烃和烯烃为主；废塑料配煤炼焦，可使得的焦油呈现&环构化&和&轻质化&趋势；废塑料的添加可使煤气中的可燃组分(CO、H2、CH4)的含量均有不同程度的增加；废塑料配煤炼焦可以优化焦炉煤气的组成，增加煤气中的可燃组分，提高焦炉煤气的热值。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。