Energy Resources 2 Flashcards
Fossil Fuels-Coal
-are things that burn.
Fuels
-are remains of things that lived long ago.
Fossils
- general term used to refer to all deposits of organic
materials capable of being burnt as fuels
Fossil Fuels
What are the three
types of fossil fuels?
- coal
- oil
- natural gas.
-It is a carbon-rich deposit formed from dead plant material through the process of coalification.
-The organisms that form __- are usually trees, ferns, and other plants that lived 300 to 400 million years ago, though there are much younger coal deposits that exist. These dead organisms may have been deposited in swamps covered by either saltwater or freshwater.
-Over time, buried remains experience changes in pressure and temperature conditions that altered its composition.
Coal
Coal is a carbon-rich deposit formed from dead plant material through the process of ___.
coalification
Forms of Fossil Fuels
___is a precursor to coal formed through
peatification or partial decay of plant debris in
swampy, waterlogged environments.
Peat
Forms of Fossil Fuels
Peat is a precursor to coal formed through
___ or ____ in
swampy, waterlogged environments.
peatification,
partial decay of plant debris
Process of Making Coal
- ____ are buried in swamp environments
- burial results to formation of ____
- greater burial results to formation of ____
- burial and metamorphism results to the formation of
___
organic materials,
peat,
lignite,
anthracite
What are the 4 types of coal?
- Lignite
- Bituminous
- Sub-bituminous
- Anthracite
Types of Coal
1.)
-soft brown coal
-used mainly at power generation plants and for industrial energy needs.
-increasing moisture content
CARBON CONTENT: 25-30%
Lignite
Types of Coal
2.)
-Generally used for power generation
-increasing power content
CARBON CONTENT: 35-45%
Sub-Bituminous
Types of Coal
3.)
-soft black coal
-widely used for power generation and in the steel and iron industries
-Increasing heat & carbon
CARBON CONTENT: 34-86%
(coking coal is heated in air-less conditions to produce “coke”, a hard, porous fuel for steel making.)
Bituminous
coking coal is heated in air-less conditions to produce “____”, a hard, porous fuel for steel making.
coke
Types of Coal
4.)
-hard black coal
- used mainly at electricity-generating plants
-Increasing heat & Carbon
CARBON CONTENT: 86-97%
Anthracite