fossil fuel (coal,oil shale, petroleum) Flashcards
(23 cards)
How many type of coal are there? name it.
5
1. peat
2.lignite
3.sub-bituminous
4.bituminous
5.anthracite
black/ brownish-black sedimentary rock that can be burned for fuels.
coal
-an accumulation of partly decomposed plant matter such as root/s stems/ and leaves
-20 % carbon (low energy)
peat
-brown coal
-lowest quality of coal
-25-30 % carbon (low carbon energy)
-high moisture content
lignite
-coal/black lignite
-buried for a long time
-35-45% carbon
-grey-black to dark brown
-generating electricity.
sub-bituminous
-second highest quality of coal
-higher carbon content
-lower moist content
-steel production
bituminous
-highest quality of coal
-lower moist content
-highest carbon content are more that 80%
anthracite
Fine-grained sedimentary rock that is rich in kerogen.
Oil-shale
Waxy insoluble organic matter found in sedimentary rocks that break down and releases hydrocarbons when heated.
Kerogen
petroleum is mixture of hydrocarbons found beneath the Earth’s surface that can be refined into a fuel.
Petroleum
_______ is a fossil fuel formed mainly from marine organism
petroleum
______ trap is a subsurface area where rocks spilt along a fault line.
anticline trap
____ trap. layers of rock spilt along a fault line.
-cause the permeable reservoir rock to be adjacent.
fault trap
__ __ __ rocks moves upward slowly.
salt dome trap
____ ____ trap deposition of different type of sediments.
stratigraphic trap.
exists as a liquid in the subsurface traps and remains as a liquid when brought to the surface.
crude oil
the component of crude oil can be separate through a process called?
fractional distillation
petroleum products from fractional distillation (1-4)
1.petroleum gas
2.light naphtha
3.Heavy naphtha
4.kerosene
petroleum products from fractional distillation (5-9)
5.diesel
6.lubrication oils
7.wax and fuel oil
8.bitumen
9.crude oil
beneath the earth’s surface, petroleum exists in two forms ______ and _______
crude oil and natural gas
a ______ gas is a hydrocarbon gas mixture consisting mostly of methane.
-commonly contains other hydrocarbons.
natural gas
____ _____ gas is natural gas that is composed mostly of methane.
-contain very little condensates or liquid.
dry natural gas
__ ______ __ is natural gas that has some methane and good quantity of heavier compounds like ethane.
Wet natural gas