sub-bituminous coal

简明释义

次烟煤

英英释义

例句

1.Some regions rely heavily on sub-bituminous coal for their heating needs during winter.

一些地区在冬季严重依赖亚烟煤来满足供暖需求。

2.The combustion of sub-bituminous coal produces less carbon dioxide compared to bituminous coal.

与烟煤相比，燃烧亚烟煤产生的二氧化碳更少。

3.The power plant uses sub-bituminous coal to generate electricity efficiently.

该发电厂使用亚烟煤高效发电。

4.In the mining industry, sub-bituminous coal is often extracted for its lower sulfur content.

在采矿行业，亚烟煤常因其较低的硫含量而被提取。

5.Environmental regulations are changing the way we use sub-bituminous coal in energy production.

环境法规正在改变我们在能源生产中使用亚烟煤的方式。

作文

Coal is one of the most important fossil fuels used worldwide for energy production. Among the various types of coal, sub-bituminous coal plays a significant role in the energy sector. This type of coal is characterized by its carbon content, which is lower than that of bituminous coal but higher than lignite. The carbon percentage in sub-bituminous coal typically ranges from 35% to 45%, making it a valuable resource for power generation and industrial processes.The formation of sub-bituminous coal occurs over millions of years through the geological process of coalification. During this process, peat, which is an accumulation of decayed plant material, undergoes physical and chemical changes due to heat and pressure. Over time, as the peat transforms into coal, it passes through different stages, eventually becoming sub-bituminous coal. This type of coal is found in various regions across the globe, including the United States, Indonesia, and parts of Australia.One of the primary uses of sub-bituminous coal is in electricity generation. Power plants often utilize this type of coal because it burns more efficiently than lignite, producing more energy per unit of weight. Additionally, sub-bituminous coal has a lower sulfur content compared to other types of coal, which helps to reduce harmful emissions when burned. This aspect makes it a more environmentally friendly option relative to higher-sulfur coals.Moreover, sub-bituminous coal is also used in industrial applications, such as cement production and steel manufacturing. In these industries, the coal serves as a crucial source of energy and heat, contributing to the overall efficiency of the production processes. The versatility of sub-bituminous coal highlights its importance in various sectors, not just in electricity generation but also in supporting industrial growth.However, the use of sub-bituminous coal is not without challenges. As the world shifts towards more sustainable energy sources, the demand for coal, including sub-bituminous coal, has faced scrutiny. Environmental concerns regarding greenhouse gas emissions and air pollution have prompted many countries to explore alternatives such as wind, solar, and hydroelectric power. Despite these challenges, sub-bituminous coal remains a critical component of the energy mix in many regions, especially where renewable energy infrastructure is still developing.In conclusion, sub-bituminous coal is an essential type of coal that plays a vital role in energy production and industrial processes. Its unique properties, such as lower sulfur content and higher energy output compared to lignite, make it a preferred choice for many applications. However, as the global focus shifts towards sustainable energy solutions, the future of sub-bituminous coal will depend on balancing energy needs with environmental considerations. Understanding the characteristics and uses of sub-bituminous coal is crucial for policymakers and industry leaders as they navigate the complex landscape of energy production in the 21st century.

亚烟煤是全球用于能源生产的重要化石燃料之一。在各种类型的煤中，亚烟煤在能源领域中扮演着重要的角色。这种煤的特点是其碳含量低于烟煤，但高于褐煤。亚烟煤的碳含量通常在35%到45%之间，使其成为发电和工业过程中的宝贵资源。亚烟煤的形成经历了数百万年的地质过程，称为煤化作用。在这个过程中，泥炭，即累积的腐烂植物材料，因热和压力而发生物理和化学变化。随着时间的推移，泥炭逐渐转变为煤，最终成为亚烟煤。这种类型的煤在全球多个地区发现，包括美国、印度尼西亚和澳大利亚部分地区。亚烟煤的主要用途之一是发电。发电厂通常利用这种煤，因为它比褐煤燃烧得更有效，单位重量产生的能量更多。此外，亚烟煤的硫含量低于其他类型的煤，这有助于减少燃烧时的有害排放。这一方面使其相对于高硫煤而言，更加环保。此外，亚烟煤还用于工业应用，如水泥生产和钢铁制造。在这些行业中，煤作为重要的能源和热源，促进了生产过程的整体效率。亚烟煤的多功能性突显了其在各个领域的重要性，不仅在发电中，也在支持工业增长方面。然而，使用亚烟煤并非没有挑战。随着世界向更可持续的能源来源转变，对包括亚烟煤在内的煤的需求面临审查。关于温室气体排放和空气污染的环境问题促使许多国家探索风能、太阳能和水电等替代能源。尽管面临这些挑战，亚烟煤仍然是许多地区能源组合中的关键组成部分，特别是在可再生能源基础设施仍在发展的地方。总之，亚烟煤是一种重要的煤，在能源生产和工业过程中发挥着至关重要的作用。其独特的特性，如较低的硫含量和相对于褐煤更高的能量输出，使其在许多应用中成为首选。然而，随着全球关注转向可持续能源解决方案，亚烟煤的未来将取决于平衡能源需求与环境考虑。了解亚烟煤的特征和用途对政策制定者和行业领导者来说至关重要，因为他们在21世纪的能源生产复杂格局中航行。