Coal Chemistry and Technology Essay example -- Coal Research Paper

1. combust composition burn was formed from remains of plants from several hundred millions age ago partially decomposed. These remains were settled in regions where waterlogged or swampy regions prevailed. These conditions avoid complete decomposition making possible the step-by-step peat formation. Peat is not considered sear actually, entirely is an essential step to coal formation. This formation parade is called coalification and it is essentially a progressive change from peat to anthracite transition through diametrical types of coals. This process not only depends on the time, but also on temperature and burial pressure (Speight 1983). Schematic representation of the coalification process (Speight 1983) 2.Coal ClassificationCoals can be classified by its glaring. The rank of the coal can be defined as the stage of alteration that coal experiments during the coalification. On the one hand there argon Lignite and sub-bituminous coals which are Low rank coals. These have a dispirit content in Carbon, are lighter and have higher moisture levels. On the other hand there is Bituminous coals and Anthracite which are high rank coals. They have a higher content in carbon which means they have more energy content. They have tear down moisture levels and a more vitreous appearance (University of Kentucky, 2012). 3.Coal penningCoal is an organic sediment which can be described in several ways. The most common way is in terms of the uncomplicated composition. J. G. Speight, (1991) suggested that coal can classified on the basis of the general economy Cn Hm Nx Oy Sz (where n, m, x, y and z are number of atoms of each element)Coal is not a homogeneous material. It is heterogeneous and is contaminated by different types of impurities w... ...rcel Dekker Inc.Classification and Rank of Coal. University of Kentucky. (2012). ONLINE Available at http//www.uky.edu/KGS/coal/coalkinds.htm. Accessed 12 November 13. shed G. R, (1991). Advanced coal cleaning technology IEA Coal Research. (IEACR/44)Vernon J.L, Jones T, (1993) Sulphur and Coal. capital of the United Kingdom IEA Coal Research (IEACR/57)Ryan, B, Ledda L, (1997). A review of sulphur in coal with specific reference to the telkwa deposit, North-western british Columbia. Geological Fieldwork, Paper 1998, Pages 1-10Morrison G. F, (1981). Chemical desulphurisation of coal IEA Coal Research. (ICTIS/TR15)Blzquez B.L, Ballester A, Gonzlez F, Mier J.L, (1991). Desulfuracin de Carbones, la biodesulfuracin como alternativa. Minera del Carbn. Pages 40-49Morrison G. F, (1982). inhibit of sulphur oxides from coal combustion IEA Coal Research. (ICTIS/TR15)