subbituminous

简明释义

英[/sʌbˌbɪtʃəˈmɪnəs/]美[/sʌbˌbɪtʃəˈmɪnəs/]

adj. 亚烟煤的

英英释义

单词用法

同义词

反义词

例句

1.The rapid pyrolysis process using solid heat carrier is a developing technology which is used for the comprehensive utilization of lignite, oil shale or subbituminous coal.

固体热载体法低温快速干馏是一项对褐煤、油页岩和长焰煤进行综合加工利用的正在开发的新工艺。

2.The rapid pyrolysis process using solid heat carrier is a developing technology which is used for the comprehensive utilization of lignite, oil shale or subbituminous coal.

固体热载体法低温快速干馏是一项对褐煤、油页岩和长焰煤进行综合加工利用的正在开发的新工艺。

3.In energy production, subbituminous coal is often used as a more economical alternative to bituminous coal.

在能源生产中，亚烟煤常被用作比烟煤更经济的替代品。

4.Environmental regulations have impacted the use of subbituminous coal in power plants.

环境法规对电厂使用亚烟煤产生了影响。

5.Many regions rely on subbituminous coal for their electricity generation needs.

许多地区依赖亚烟煤来满足其电力需求。

6.The coal mine primarily produces subbituminous coal, which is known for its higher moisture content.

这座煤矿主要生产亚烟煤，这种煤以其较高的水分含量而闻名。

7.The heating value of subbituminous coal is generally lower than that of anthracite but higher than lignite.

亚烟煤的热值通常低于无烟煤，但高于褐煤。

作文

Coal is one of the most significant fossil fuels used for energy production worldwide. Among the various types of coal, subbituminous coal plays a crucial role in the energy sector. This type of coal is characterized by its carbon content, which typically ranges from 35% to 45%. It is found between lignite and bituminous coal on the rank scale of coal quality. The formation of subbituminous coal occurs under conditions of increased pressure and temperature compared to lignite but lower than that of bituminous coal. As a result, it possesses unique properties that make it suitable for specific applications in electricity generation and industrial processes.One of the primary uses of subbituminous coal is in power plants where it is combusted to produce steam that drives turbines for electricity generation. Due to its relatively high energy content and lower sulfur emissions compared to higher-ranked coals, subbituminous coal is often favored in regions where environmental regulations are stringent. Additionally, its availability in large quantities makes it an attractive option for energy producers looking to meet demand while minimizing their environmental footprint.Another important aspect of subbituminous coal is its role in the production of synthetic natural gas (SNG). The gasification process transforms subbituminous coal into SNG, which can be utilized for heating, electricity generation, and as a feedstock for chemicals. This process not only diversifies the energy supply but also contributes to energy security, especially in countries with abundant coal reserves.However, despite its advantages, the use of subbituminous coal is not without challenges. The extraction and combustion of coal contribute to greenhouse gas emissions, which have significant implications for climate change. As such, there is ongoing debate regarding the sustainability of coal as an energy source. Many countries are transitioning towards renewable energy sources, which raises questions about the future of subbituminous coal in the global energy landscape.In conclusion, subbituminous coal serves as a vital energy resource, bridging the gap between lower and higher ranked coals. Its unique properties allow it to be effectively used in electricity generation and gasification processes. While it offers certain advantages, the environmental impact of coal usage cannot be ignored. As the world moves towards cleaner energy solutions, the role of subbituminous coal will likely evolve, necessitating careful consideration of its benefits and drawbacks in the context of sustainable development.

煤炭是全球能源生产中最重要的化石燃料之一。在各种类型的煤中，亚烟煤在能源部门中发挥着至关重要的作用。这种类型的煤炭以其碳含量为特征，通常在35%到45%之间。它位于褐煤和烟煤之间，是煤炭质量等级中的一种。亚烟煤的形成发生在比褐煤更高的压力和温度条件下，但低于烟煤。因此，它具有独特的特性，使其适合用于电力生产和工业过程中的特定应用。亚烟煤的主要用途之一是在发电厂中被燃烧，以产生驱动涡轮机的蒸汽。由于其相对较高的能量含量和相比于高等级煤较低的硫排放，亚烟煤常常在环境法规严格的地区受到青睐。此外，其丰富的供应使其成为希望满足需求同时最小化环境足迹的能源生产者的吸引选择。亚烟煤的另一个重要方面是其在合成天然气（SNG）生产中的作用。气化过程将亚烟煤转化为SNG，可用于供暖、电力生成和化学品的原料。这一过程不仅多样化了能源供应，还增强了能源安全，特别是在拥有丰富煤炭储备的国家。然而，尽管有其优势，使用亚烟煤并非没有挑战。煤炭的开采和燃烧会导致温室气体排放，这对气候变化有重大影响。因此，关于煤炭作为能源来源的可持续性仍然存在持续的争论。许多国家正在向可再生能源转型，这引发了对亚烟煤在全球能源格局中未来的质疑。总之，亚烟煤作为一种重要的能源资源，在低等级和高等级煤之间架起了桥梁。其独特的性质使其能够有效用于电力生成和气化过程。尽管它提供了一些优势，但煤炭使用的环境影响不容忽视。随着世界向更清洁的能源解决方案迈进，亚烟煤的角色可能会演变，因此在可持续发展背景下仔细考虑其利弊是必要的。