Energy Research Essay - Coal -- Energy Research Essays

Energy Research Essay - Coal First of all, coal displace be classified in many different classes. One way of life is known as coal rank. Coal rank is a step of degree of change (metamorphosis) from the peat stage. The ranks range from low rank to high rank. These atomic number 18 called lignite, subituminous, bituminous, and anthracite. Heating value and sulfur content reach maximum set at the bituminous coal rank. This stage contains very important environmental implications. Low ranking coal (eg lignite) releases a smoky fervour when ignited. excitation is also easy. High rank coal (eg antracite) has a clean flame and difficult ignition. Coal contains minerals These are organic constituents derived from different parts of plants. An environmental analysis of coal shows it contain...