What is the chemical formula of bituminous coal?
Fillers – Origin, Chemical Composition, Properties, and Morphology
| Names: anthracite, semi-anthracite coal, bituminous coal | |
|---|---|
| Chemical formula: C | Functionality: OH |
| Chemical composition: carbon – 77%, ash – 6-16% | |
| Trace elements: sulfur – 0.23-1.2%, silica oxide – 2.2-5.4%, alumina – 2%, ferric oxide – 0.4% | |
| PHYSICAL PROPERTIES |
What is the chemical composition of coal?
Coal is defined as a readily combustible rock containing more than 50% by weight of carbon. Coals other constituents include hydrogen, oxygen, nitrogen, ash, and sulfur. Some of the undesirable chemical constituents include chorine and sodium.
What minerals are in bituminous coal?
Abstract. The four most abundant minerals generally found in Euramerican bituminous coals are quartz, kaolinite, illite and pyrite.
What is bituminous coal called?
bituminous coal, also called soft coal, the most abundant form of coal, intermediate in rank between subbituminous coal and anthracite according to the coal classification used in the United States and Canada.
What percent of carbon is in bituminous coal?
60 – 80Bituminous coal / Carbon content (%)
Is bituminous coal clastic organic or chemical?
Coal – organic sedimentary rock composed of the remains of plant material. Various grades of coal include peat, lignite, bituminous coal, and anthracite coal.
Where does bituminous coal form?
Like other ranks of coal, bituminous coal forms from thick accumulations of dead plant material that are buried faster than they can decay. This usually takes place in peat bogs, where falling plant debris is submerged in standing water.
What is the chemical properties of coal?
The mean coal composition (dry, mineral free basis) ranges from 69.6% carbon, 4.85% hydrogen, 1.05% nitrogen, 1.25% sulphur, 21.0% oxygen, 1.14% calcium, 0.19% magnesium, 0.2% aluminium, 0.49% iron, 0.06% sodium, 0.043% boron (5.0% ash) for Mangatoi seam 2 to 70.2% carbon, 5.27% hydrogen, 1.0% nitrogen, 3.08% sulphur, …
What is bituminous made of?
Bitumen is a product of oil refining and is a long chain complex hydrocarbon. It typically contains 82–88% carbon and 8–11% hydrogen, the rest being sulfur, oxygen and nitrogen.
How is bituminous coal made?
Bituminous coal (all coal) forms from the destructive distillation of plant remains under anaerobic conditions. It results from burial and compression, and the driving off of hydrogen and other volatiles leaving behind fixed carbon, with varying amounts of sulfur, and other elements.
Where does bituminous coal come from?
Bituminous coal is the second highest quality of coal (below anthracite) and the most abundant type. Usually, bituminous coal comes from fairly old coal deposits (around 300 million years) and exhibits a carbon content that ranges from 76-86%.
Is bituminous coal crystalline?
Coal is not a mineral, because it can not be expressed as a chemical formula, and therefore, does not have a definate crystaline structure.
How much carbon is in bituminous coal?
60 – 80Bituminous coal / Carbon content (%)
What is the difference between bituminous and anthracite varieties of coal?
Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter. Bituminous: Bituminous coal is a middle rank coal between subbituminous and anthracite.
What is the chemical and physical properties of coal?
Result of chemical composition and physical characteristic (proximate, ultimate analysis and calorific value of coal and mangrove wood were as follow: coal from Kaltim Prima Coal were moisture: 16.11%, ash: 3.77%, volatile matter: 43.10%, fixed carbon: 37.01%, carbon content: 44.86%, sulfur content: 0.130% and …
Is bituminous coal inorganic?
What's the deal with coal? It's classified as an organic sedimentary rock, but rocks are combinations of minerals, and minerals are inorganic.
How is bituminous coal formed?
Bituminous coal is formed when a sub bituminous coal is subjected to increased levels of organic metamorphism. It has a carbon content of between 77 and 87% on a dry ash-free basis and a heating value that is much higher than lignite or sub bituminous coal.
What is the hardness of bituminous coal?
between 2 and 2.5 The scratch hardness (Mohs hardness) is the relative hardness determined by scratching the coal surface with 10 types of standard mineral. The scratch hardness of bituminous coal is usually between 2 and 2.5.