coal property

简明释义

煤质

英英释义

例句

1.Different coal properties affect the emissions produced during burning.

不同的煤炭性质会影响燃烧过程中产生的排放。

2.Understanding the coal property is essential for optimizing combustion efficiency.

理解煤炭性质对于优化燃烧效率至关重要。

3.The coal property of sulfur content is crucial for environmental assessments.

煤炭性质中的硫含量对环境评估至关重要。

4.Geologists study coal properties to find the best locations for mining.

地质学家研究煤炭性质以寻找最佳的开采位置。

5.The analysis of coal property helps determine its suitability for energy production.

对煤炭性质的分析有助于确定其在能源生产中的适用性。

作文

Coal has been a vital resource for energy production and industrial processes for centuries. Understanding the coal property is essential for optimizing its use and minimizing environmental impacts. The term coal property refers to the various characteristics of coal, including its chemical composition, physical structure, and heating value. These properties determine how coal behaves during combustion, its efficiency as an energy source, and its suitability for different applications.One of the primary coal properties is its carbon content. Coal is primarily composed of carbon, which is the main element responsible for its energy content. Higher carbon content typically results in higher heating value, making it more efficient for energy production. In addition to carbon, coal also contains hydrogen, sulfur, oxygen, and nitrogen. The presence of sulfur, in particular, is significant because it can lead to the formation of sulfur dioxide when coal is burned, contributing to air pollution and acid rain.Another important coal property is its rank, which indicates the degree of metamorphism the coal has undergone. Coal ranks vary from lignite, which is low-grade and has a high moisture content, to anthracite, which is high-grade and has a high carbon content. The rank affects not only the energy content but also the emissions produced when the coal is burned. For instance, anthracite produces less smoke and fewer pollutants compared to lignite, making it a cleaner option for combustion.The physical characteristics of coal, such as its size and density, also play a critical role in its coal property. The size of coal particles can influence combustion efficiency; smaller particles tend to burn more completely, resulting in higher energy output and reduced emissions. Density is another factor that affects how coal is transported and stored. Denser coals are often preferred for their energy content, but they may also present challenges in terms of handling and processing.Moreover, the coal property includes its ash content, which is the residue left after combustion. High ash content can reduce the overall efficiency of coal as an energy source, as it does not contribute to energy production and can lead to increased emissions and waste. Therefore, understanding the ash content is crucial for evaluating the environmental impact of coal use.In recent years, there has been a growing emphasis on the environmental implications of coal properties. As concerns about climate change and air quality intensify, the focus has shifted towards cleaner and more sustainable energy sources. However, coal remains a significant part of the global energy mix, particularly in developing countries where access to alternative energy sources is limited. Consequently, improving the understanding of coal property is vital for developing technologies that can mitigate the environmental impacts associated with coal combustion.In conclusion, the coal property encompasses a range of characteristics that are fundamental to its use as an energy source. By gaining a deeper understanding of these properties, we can enhance the efficiency of coal utilization while minimizing its environmental footprint. As we move towards a more sustainable energy future, recognizing the importance of coal property will be crucial in balancing energy needs with environmental stewardship.

煤炭作为一种能源和工业过程的重要资源，已经被人类使用了几个世纪。理解煤炭性质对于优化其使用和减少环境影响至关重要。术语煤炭性质指的是煤的各种特性，包括其化学成分、物理结构和热值。这些特性决定了煤在燃烧过程中的行为、作为能源的效率以及其适用性。煤炭性质的一个主要方面是其碳含量。煤主要由碳组成，而碳是其能量含量的主要元素。较高的碳含量通常意味着更高的热值，使其在能源生产中更为高效。除了碳，煤还含有氢、硫、氧和氮等元素。特别是硫的存在非常重要，因为燃烧煤时会形成二氧化硫，这会导致空气污染和酸雨。另一个重要的煤炭性质是其等级，这表明煤经历的变质程度。煤的等级从褐煤（低级煤，含水量高）到无烟煤（高级煤，含碳量高）不等。煤的等级不仅影响能量含量，还影响燃烧时产生的排放。例如，无烟煤相比于褐煤产生的烟雾和污染物更少，因此在燃烧时是一种更清洁的选择。煤的物理特性，如大小和密度，也在其煤炭性质中起着关键作用。煤颗粒的大小会影响燃烧效率；较小的颗粒往往燃烧得更完全，从而提高能量输出并减少排放。密度是另一个影响煤运输和储存的因素。密度较大的煤通常因其能量含量受到青睐，但在处理和加工方面也可能带来挑战。此外，煤炭性质还包括其灰分含量，即燃烧后留下的残渣。高灰分含量可能降低煤作为能源的整体效率，因为它不贡献于能量生产，并可能导致增加的排放和废物。因此，理解灰分含量对评估煤使用的环境影响至关重要。近年来，人们越来越关注煤炭性质的环境影响。随着对气候变化和空气质量的关注加剧，焦点转向更清洁和可持续的能源来源。然而，煤炭仍然是全球能源组合的重要组成部分，特别是在获取替代能源有限的发展中国家。因此，提高对煤炭性质的理解对于开发能够减轻煤燃烧相关环境影响的技术至关重要。总之，煤炭性质涵盖了一系列基本特征，这些特征对于其作为能源来源的使用至关重要。通过深入理解这些特性，我们可以提高煤的利用效率，同时最小化其环境足迹。在迈向更可持续的能源未来的过程中，认识到煤炭性质的重要性将对平衡能源需求与环境保护至关重要。