olefins

简明释义

英[ˈoʊlɪfɪnz]美[ˈoʊlɪfɪnz]

n. 烯烃，链烯（olefin 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Meanwhile, coke yield increase and octane number loss should be considered when reducing olefins through hydrogen transfer reactions.

同时，在加强氢转移反应减少烯烃时，还需考虑焦炭选择性变差和汽油辛烷值下降的问题。

2.The concentration of carbenium ions plays key role in the hydrogen transfer ability of olefins.

正碳离子浓度对烯烃的氢转移反应起决定性作用。

3.It is necessary to know the formation mechanism and influencing factors of the olefins content of FCC gasoline for developing new processes and catalysts.

了解影响FCC汽油烯烃含量的因素和生成机理对开发新工艺和催化剂十分必要。

4.Hydroformylation of olefins with different functional groups as Well as the effect of Solvent are also investigated.

溶剂也有显著影响，溶剂甲苯的结果最好。还考察了几种官能团烯烃的氢甲酰化反应。

5.Polymers of propylene or of other olefins, in primary forms.

初级形状的丙烯或其他烯烃聚合物。

6.By adopting two stage etherification technology, the total conversion of tertiary carbonic olefins in light gasoline is up to 75%.

采用二段醚化技术，轻汽油中叔碳烯烃醚化总转化率可达到75 %以上。

7.Metallocene ligands, metallocene compounds and metallocene catalysts, their synthesis and their use for the polymerization of olefins.

金属茂配体，金属茂化合物和金属茂催化剂，它们的合成以及它们用于聚合烯烃的用途。

8.ExxonMobil chemical Company licenses a multitude of technologies covering a broad range of petrochemicals from aromatics to olefins and polymers.

埃克森美孚化工可对众多技术进行技术转让，覆盖了石油化工的多个领域，从芳烃、烯烃再到聚合物。

9.The production of olefins (烯烃) is a key process in petrochemical industries.

烯烃的生产是石油化工行业的一个关键过程。

10.Polyethylene is made from the polymerization of olefins (烯烃).

聚乙烯是由烯烃的聚合反应制成的。

11.In the laboratory, we often analyze the properties of olefins (烯烃) to understand their reactivity.

在实验室中，我们常常分析烯烃的性质以了解它们的反应性。

12.The catalyst used in the reaction significantly affects the yield of olefins (烯烃).

反应中使用的催化剂显著影响烯烃的产率。

13.Industrial processes often use steam cracking to produce olefins (烯烃).

工业过程中通常使用蒸汽裂解来生产烯烃。

作文

Olefins, also known as alkenes, are a class of hydrocarbons that contain at least one carbon-carbon double bond. These compounds play a crucial role in the petrochemical industry and serve as building blocks for various chemical processes. The most common examples of olefins (烯烃) include ethylene and propylene, which are used to produce plastics, synthetic fibers, and other valuable materials. Understanding the properties and applications of olefins (烯烃) is essential for anyone studying chemistry or working in related fields. The significance of olefins (烯烃) can be traced back to their versatility in industrial applications. Ethylene, for instance, is one of the most produced organic compounds globally. It serves as a precursor for polyethylene, a widely used plastic in packaging, containers, and various consumer goods. Similarly, propylene is utilized to manufacture polypropylene, another important plastic known for its durability and resistance to various chemicals. The production of olefins (烯烃) typically occurs through processes such as steam cracking, where hydrocarbons are heated to high temperatures, resulting in the breaking of carbon-carbon bonds. This method not only generates olefins (烯烃) but also produces other valuable byproducts that can be further processed into fuels and chemicals. The efficiency of these processes has improved over the years, making the production of olefins (烯烃) more cost-effective and environmentally friendly. In addition to their industrial importance, olefins (烯烃) have significant implications in the field of organic chemistry. The presence of a double bond in olefins (烯烃) allows for various chemical reactions, such as polymerization, hydrogenation, and oxidation. These reactions enable chemists to create a wide range of products with specific properties tailored to meet market demands. For example, the polymerization of ethylene leads to the formation of polyethylene, while the hydrogenation of olefins (烯烃) can produce saturated hydrocarbons, which are often more stable and desirable for certain applications. As the world moves toward more sustainable practices, the role of olefins (烯烃) is evolving. Researchers are exploring bio-based feedstocks to produce olefins (烯烃), reducing reliance on fossil fuels. This shift not only addresses environmental concerns but also opens new avenues for innovation in the chemical industry. By utilizing renewable resources, manufacturers can create olefins (烯烃) that align with global sustainability goals. In conclusion, olefins (烯烃) are fundamental compounds in the field of chemistry and the petrochemical industry. Their unique properties and versatile applications make them invaluable for producing a wide range of materials. As the industry continues to evolve, understanding olefins (烯烃) will remain essential for scientists, engineers, and anyone interested in the future of chemical manufacturing. The continued research and development in this area promise exciting advancements that could shape the way we use and produce chemicals in a more sustainable manner.