air separation

简明释义

吹气分离

英英释义

例句

1.The efficiency of air separation processes can significantly affect production costs.

在生产过程中，空气分离工艺的效率可以显著影响生产成本。

2.In the air separation unit, different gases are separated based on their boiling points.

在空气分离装置中，不同的气体是根据其沸点进行分离的。

3.The process of air separation is crucial in producing high-purity oxygen for medical use.

进行空气分离的过程对于生产高纯度的医疗用氧至关重要。

4.Cryogenic air separation is commonly used to liquefy and separate gases.

低温空气分离通常用于液化和分离气体。

5.Industries rely on air separation technologies to obtain nitrogen for various applications.

各行各业依赖空气分离技术来获得氮气用于各种应用。

作文

Air separation is a crucial process in various industries, primarily for the extraction of oxygen and nitrogen from the atmosphere. This process involves separating the components of air based on their physical properties. The atmosphere is composed of approximately 78% nitrogen, 21% oxygen, and trace amounts of other gases such as argon and carbon dioxide. Understanding the significance of air separation (空气分离) can provide insights into its applications and benefits in modern society.In industrial applications, air separation (空气分离) plays a vital role in producing high-purity gases needed for various processes. For instance, oxygen produced through this method is essential in medical settings, where it is used for patients with respiratory issues. Additionally, oxygen is crucial in steel manufacturing, where it enhances combustion efficiency and improves the quality of the final product.The primary methods of air separation (空气分离) include cryogenic distillation, pressure swing adsorption (PSA), and membrane separation. Cryogenic distillation is the most common technique, which involves cooling air to extremely low temperatures to liquefy it. Once liquefied, the different components can be separated based on their boiling points. Nitrogen, for example, has a lower boiling point than oxygen, allowing it to be collected first during the distillation process.Pressure swing adsorption (PSA) is another effective method of air separation (空气分离), especially for producing nitrogen. This technique uses adsorbent materials that selectively capture certain gases under high pressure. When the pressure is released, the adsorbed gases are released, allowing for the collection of the desired component. PSA is widely used because it is energy-efficient and can produce nitrogen at various purity levels depending on the requirements of the application.Membrane separation is a newer technology that utilizes selective permeability of membranes to separate air components. This method is gaining popularity due to its simplicity and lower operational costs. However, it may not achieve the same purity levels as cryogenic distillation or PSA, making it suitable for specific applications where ultra-high purity is not required.The environmental impact of air separation (空气分离) processes is also an important consideration. While the production of gases is necessary for many industries, the energy consumption associated with these processes can contribute to greenhouse gas emissions. Therefore, ongoing research aims to improve the efficiency of air separation (空气分离) technologies and develop more sustainable practices. Innovations such as using renewable energy sources and optimizing existing processes are being explored to reduce the carbon footprint of gas production.In conclusion, air separation (空气分离) is a fundamental process with significant implications for various sectors, including healthcare, manufacturing, and environmental sustainability. As industries continue to evolve, the demand for purified gases will likely increase, highlighting the need for advancements in air separation (空气分离) technologies. By understanding and improving these processes, we can ensure a reliable supply of essential gases while minimizing environmental impacts.