ENERGY RESOURCES Flashcards
what are fossil fuels
refers to remains of organic matter trapped and buried in sediment which can be used for fuel
types of fossil fuel
- coal
- oil
- natural gas
- tars
- oil shale
what type of fossil fuel forms
depends on the kind of sediment, type of organic matter and physical conditions/chemical processes that take place as result of burial
what is coal
sold hydrocarbon sedimentary rock composed of clastic material (ash) and lithified plant remains
types of coal
humic (in-situ)
sapropelic (or drift)
what is coal rank lowest to highest ranks
coal rank is present of carbon present
–Peat (lowest rank) –Brown Coals and Lignite (and Jet) – Subbituminous coal (hard brown coal) – Bituminous coal (hard coal) – Semi-anthracite – Anthracite (high rank)
BTU
British Thermal Unit
amount of energy of heat required to raise temp of 1 pound of liquid water by 1 degree from 60-61 at a constant pressure of one atmosphere
stages of coalification
aerobic decay
anaerobic decay
coalification
controlling parameters of coal
burial pressure, heat and time