naphthenes

简明释义

英[ˈnæfθiːnz]美[ˈnæfθinz]

[有化]环烷（naphthene 上午复数形式）

英英释义

单词用法

同义词

反义词

例句

1.That is dehydrogenation and cyclization of paraffins, dehydrogenation and aromatization of naphthenes, and cracking reaction to form C 5 lighter products.

集总组分之间主要发生烷烃脱氢环化、环烷烃脱氢芳构化和加氢裂化反应。

2.That is dehydrogenation and cyclization of paraffins, dehydrogenation and aromatization of naphthenes, and cracking reaction to form C 5 lighter products.

集总组分之间主要发生烷烃脱氢环化、环烷烃脱氢芳构化和加氢裂化反应。

3.Other reactions such as aromatization of naphthenes systems and eventual condensation of the aromatic ring systems will produce coke.

其它诸如环烷系的芳构化与芳环系的最终缩聚等反应将导致焦炭的生成。

4.The hydrogen transfer reaction on the Y zeolite catalyst mainly takes place between gasoline olefins and naphthenes.

分子筛上发生的主要是汽油烯烃和环烷烃之间的氢转移反应。

5.Naphthenes in Saturates Fractions by Refractivity Intercept, Method of Test for 05.

用折射截取法测定饱和馏分中的矿物油的试验方法05。

6.The chemical composition of crude oil includes various hydrocarbons, among which are naphthenes 环烷烃 that contribute to its viscosity.

原油的化学成分包括各种烃类，其中包括使其粘度增加的naphthenes 环烷烃。

7.In the refining process, naphthenes 环烷烃 can be converted into valuable products like gasoline.

在炼油过程中，naphthenes 环烷烃 可以转化为有价值的产品，如汽油。

8.The presence of naphthenes 环烷烃 in a lubricant can enhance its performance under high pressure.

润滑剂中存在的naphthenes 环烷烃 可以提高其在高压下的性能。

9.Scientists are studying the effects of naphthenes 环烷烃 on marine ecosystems.

科学家们正在研究naphthenes 环烷烃 对海洋生态系统的影响。

10.The distillation process separates naphthenes 环烷烃 from lighter hydrocarbons.

蒸馏过程将naphthenes 环烷烃 与较轻的烃类分离。

作文

Naphthenes are a class of hydrocarbons that play a significant role in the petroleum industry. These compounds, characterized by their cyclic structure, are primarily found in crude oil and are known for their unique properties that make them valuable in various applications. Understanding naphthenes is essential for anyone involved in the field of chemistry or petroleum engineering. The term 'naphthenes' refers to a group of saturated hydrocarbons that contain one or more rings in their molecular structure. They are also known as cycloalkanes, which distinguishes them from aliphatic hydrocarbons that consist of straight or branched chains. The presence of these ring structures gives naphthenes distinct chemical properties, such as higher stability and lower reactivity compared to other types of hydrocarbons. This stability makes naphthenes particularly useful in the production of fuels and lubricants. In the context of crude oil refining, naphthenes are often converted into more valuable products through various processes, including cracking and reforming. For instance, during the refining process, naphthenes can be transformed into aromatic hydrocarbons, which are essential for producing high-octane gasoline and other petrochemicals. Additionally, naphthenes can serve as a precursor for the synthesis of various chemicals used in the manufacturing of plastics, synthetic fibers, and other materials. One interesting aspect of naphthenes is their impact on the physical properties of petroleum products. The presence of naphthenes in gasoline, for example, can influence its octane rating, which is a measure of a fuel's ability to resist knocking during combustion. Fuels with higher naphthene content generally exhibit improved performance in engines, making them desirable for automotive applications. Moreover, naphthenes also play a crucial role in the production of lubricating oils. The cyclic nature of naphthenes contributes to the viscosity and thermal stability of these oils, ensuring that they perform effectively under high temperatures and pressures. This characteristic is vital for maintaining engine efficiency and longevity, highlighting the importance of naphthenes in the automotive and machinery sectors. Despite their advantages, the presence of naphthenes in crude oil can also pose challenges during refining. For instance, the formation of unwanted by-products during the conversion processes can lead to operational difficulties and increased costs. Therefore, understanding the behavior of naphthenes and their interactions with other components in crude oil is crucial for optimizing refining operations. In conclusion, naphthenes are an integral part of the hydrocarbon family, with significant implications for the petroleum industry. Their unique structural characteristics and properties allow them to be transformed into valuable products, thereby contributing to various sectors, including transportation, manufacturing, and energy. As the world continues to seek efficient and sustainable energy solutions, the study and understanding of naphthenes will remain vital for advancing technologies and improving industrial processes. Therefore, gaining a comprehensive understanding of naphthenes is essential for professionals in the fields of chemistry, engineering, and environmental science. In Chinese, naphthenes are referred to as '萘烃', which highlights their significance in both language and industry. By exploring the properties and applications of naphthenes, we can better appreciate their role in our daily lives and the broader economy.

萘烃是一类在石油工业中发挥重要作用的烃类化合物。这些化合物以其环状结构为特征，主要存在于原油中，以其独特的性质而闻名，使其在各种应用中具有价值。理解萘烃对任何参与化学或石油工程领域的人来说都是至关重要的。 “萘烃”一词指的是一组饱和烃，它们在分子结构中包含一个或多个环。它们也被称为环烷烃，这使它们与由直链或支链组成的脂肪族烃相区别。这些环状结构的存在赋予了萘烃独特的化学性质，例如比其他类型的烃更高的稳定性和更低的反应性。这种稳定性使得萘烃在燃料和润滑剂的生产中尤其有用。 在原油精炼的背景下，萘烃通常通过各种过程转化为更有价值的产品，包括裂化和重整。例如，在精炼过程中，萘烃可以转化为芳香烃，这对于生产高辛烷值汽油和其他石化产品至关重要。此外，萘烃还可以作为合成用于制造塑料、合成纤维和其他材料的各种化学品的前体。 萘烃的一个有趣方面是它们对石油产品物理性质的影响。例如，汽油中萘烃的存在会影响其辛烷值，这是衡量燃料在燃烧过程中抵抗爆震能力的指标。含有较高萘烃含量的燃料通常在发动机中表现出更好的性能，使其在汽车应用中受到青睐。 此外，萘烃在润滑油的生产中也发挥着关键作用。萘烃的环状特性有助于这些油的粘度和热稳定性，确保它们在高温和高压下有效工作。这一特性对于保持发动机效率和延长使用寿命至关重要，突显了萘烃在汽车和机械行业中的重要性。 尽管萘烃具有优势，但在精炼过程中，原油中萘烃的存在也可能带来挑战。例如，在转化过程中形成不必要的副产品可能导致操作困难和成本增加。因此，理解萘烃的行为及其与原油中其他成分的相互作用对于优化精炼操作至关重要。 总之，萘烃是烃类家族的重要组成部分，对石油工业具有重大影响。它们独特的结构特征和性质使它们能够转化为有价值的产品，从而为包括运输、制造和能源等各个领域做出贡献。随着世界继续寻求高效和可持续的能源解决方案，萘烃的研究和理解将仍然对推动技术进步和改善工业过程至关重要。因此，全面了解萘烃对于化学、工程和环境科学领域的专业人士是必不可少的。 在中文中，萘烃被称为“萘烃”，这突显了它们在语言和工业中的重要性。通过探索萘烃的性质和应用，我们可以更好地欣赏它们在我们日常生活和更广泛经济中的作用。