lignite

简明释义

英[ˈlɪɡnaɪt]美[ˈlɪɡnaɪt]

n. [矿物] 褐煤

英英释义

单词用法

同义词

反义词

例句

1.To sum up, the study of coal metamorphism has guiding significance in bituminous coal prediction in Yimin coalfield and Hailar lignite basin.

研究该区煤变质规律对伊敏煤田及海拉尔褐煤盆地烟煤预测具有指导作用。

2.We have successfully completed an assignment for Asian Development Bank for an environmental evaluation of a power plant and lignite mine.

我们成功地为亚洲发展银行完成了一项发电厂和褐煤矿的环境的评核。

3.The adsorption equilibrium constant of germanium in lignite was determined.

测定了煤对锗的吸附平衡常数。

4.The kinetics of preparation active carbon from Yunnan Xianfeng lignite with phosphoric acid activation was studied.

研究了磷酸一步炭活化云南先锋褐煤的炭活化动力学。

5.Some properties of Hailaer lignite char were studied in lab, such as the reactivity and electric resistivity.

在实验室研究了海拉尔褐煤半焦的反应性能、比电阻等性质。

6.This paper describes the solvent extraction of germanium from the leached solution of uranium - and germanium-containing lignite ash.

本文叙述了从含铀锗褐煤灰的浸出液中萃取锗的研究。

7.Natural Resources: coal, sulfur, copper, natural gas, silver, lead, salt, zinc, magnesite, lignite, crude oil.

自然资源：煤、硫磺、铜、天然气、银、铅、盐、锌、菱美矿、褐煤、原油。

8.The methods of making solid coal sorbent and liquid gelsorbent from lignite are also discussed in this paper.

列举了由褐煤制取固体煤质吸附剂和液体凝胶吸附剂的方法。

9.The power plant uses lignite as a primary fuel source due to its low cost.

这座电厂由于成本低，使用褐煤作为主要燃料来源。

10.Mining lignite can be an environmentally challenging process.

开采褐煤可能是一个环境挑战的过程。

11.In some regions, lignite is abundant and used for heating homes.

在某些地区，褐煤丰富，用于家庭取暖。

12.The calorific value of lignite is lower than that of hard coal.

褐煤的热值低于硬煤。

13.Scientists are studying the potential of lignite in carbon capture technologies.

科学家们正在研究褐煤在碳捕集技术中的潜力。

作文

Lignite, often referred to as brown coal, is a type of coal that is considered to be the lowest rank in the coal classification system. It is primarily used as a fuel source for electricity generation and is characterized by its high moisture content and low carbon content compared to other types of coal. The formation of lignite (褐煤) occurs from the compression of peat over millions of years, resulting in a soft, brownish-black substance. This process of transformation from peat to lignite (褐煤) involves geological and biological factors, including pressure, heat, and time. The use of lignite (褐煤) has been a subject of debate due to its environmental impact. When burned, lignite (褐煤) emits a significant amount of carbon dioxide and other pollutants compared to higher-grade coals like bituminous coal and anthracite. This high level of emissions contributes to climate change and air pollution, raising concerns among environmentalists and policymakers. Despite these drawbacks, many countries continue to rely on lignite (褐煤) for energy production due to its abundance and low cost. In regions where lignite (褐煤) is readily available, such as Germany, Australia, and parts of the United States, it plays a crucial role in the energy sector. Power plants that utilize lignite (褐煤) are often designed specifically for its unique properties, given its lower calorific value and higher moisture content. These plants typically require larger quantities of lignite (褐煤) to produce the same amount of energy as higher-grade coals. The economic implications of lignite (褐煤) extraction and usage are also significant. Mining operations can provide jobs and stimulate local economies, especially in rural areas where alternative employment opportunities may be limited. However, the environmental costs associated with mining and burning lignite (褐煤) can lead to long-term damage to ecosystems and public health concerns. As the world moves towards cleaner energy sources, the future of lignite (褐煤) remains uncertain. Many countries are investing in renewable energy technologies, such as wind, solar, and hydroelectric power, which offer more sustainable alternatives to fossil fuels. Transitioning away from lignite (褐煤) may be necessary to meet global climate targets, but this shift poses challenges for communities reliant on coal for their livelihoods. In conclusion, lignite (褐煤) is a critical resource in the energy landscape, particularly in certain regions where it is abundant. While it provides economic benefits and serves as a significant energy source, its environmental impact cannot be overlooked. The challenge lies in balancing the immediate energy needs with the long-term goal of creating a sustainable and healthy environment. As we explore new energy solutions, the role of lignite (褐煤) will undoubtedly evolve, reflecting the broader changes in our approach to energy consumption and environmental stewardship.

褐煤，通常被称为棕色煤，是一种被认为是煤炭分类系统中最低等级的煤。它主要用作发电的燃料来源，其特征是与其他类型的煤相比，水分含量高且碳含量低。褐煤（lignite）的形成是由于泥炭在数百万年的压缩下产生的，形成一种柔软的、棕黑色的物质。从泥炭到褐煤（lignite）的转变过程涉及地质和生物因素，包括压力、热量和时间。 由于其环境影响，褐煤（lignite）的使用一直是一个争论的话题。当燃烧时，褐煤（lignite）排放的二氧化碳和其他污染物的数量相对于更高等级的煤如烟煤和无烟煤要显著得多。这种高排放水平助长了气候变化和空气污染，引起了环保人士和政策制定者的关注。尽管存在这些缺点，许多国家仍然依赖于褐煤（lignite）作为能源生产，因为它的丰富性和低成本。 在褐煤（lignite）容易获得的地区，如德国、澳大利亚和美国部分地区，它在能源部门发挥着至关重要的作用。利用褐煤（lignite）的发电厂通常专门为其独特性质设计，因为其热值较低和水分含量较高。这些工厂通常需要更多的褐煤（lignite）才能产生与更高等级煤相同数量的能量。 褐煤（lignite）的开采和使用的经济影响也非常显著。采矿作业可以提供就业机会，并刺激地方经济，尤其是在农村地区，替代就业机会可能有限。然而，与开采和燃烧褐煤（lignite）相关的环境成本可能导致生态系统的长期损害和公众健康问题。 随着世界向更清洁的能源来源迈进，褐煤（lignite）的未来仍然不确定。许多国家正在投资可再生能源技术，如风能、太阳能和水电，这些技术提供了更可持续的替代化石燃料的选择。过渡离开褐煤（lignite）可能是实现全球气候目标所必需的，但这一转变对依赖煤炭谋生的社区构成挑战。 总之，褐煤（lignite）在能源格局中是一个关键资源，特别是在某些地区其资源丰富。尽管它提供了经济利益并作为重要的能源来源，但其环境影响不能被忽视。挑战在于平衡即时的能源需求与创造可持续和健康环境的长期目标。当我们探索新的能源解决方案时，褐煤（lignite）的角色无疑会随着我们对能源消费和环境管理方法的广泛变化而演变。