középszén

Középszén is a Hungarian term that translates to "middle coal" or "medium coal." It refers to a type of coal that falls between lignite (barnaszén) and hard coal (keményszén) in terms of its properties, particularly its calorific value and carbon content. This classification is often used in geological and industrial contexts, especially in Hungary and surrounding regions where these coal types are found.

Geologically, középszén is typically formed from peat under moderate pressure and temperature over millions of years. This process results in a coal with a higher energy content than lignite but lower than hard coal. Its moisture content is generally lower than lignite, and it burns with more heat. The exact characteristics can vary depending on the specific deposit.

Industrially, középszén has been utilized as a fuel source for power generation and heating. While not as energy-dense as hard coal, its availability and relative ease of extraction have made it a significant resource in certain areas. However, like other fossil fuels, its combustion releases greenhouse gases and other pollutants, leading to ongoing considerations regarding its environmental impact and the transition to cleaner energy sources.