L4.2: Types of Fossil Fuels and Formation

• Coal

  ● Rock formed from the decomposition of plants. Mainly composed of carbons along with other minerals

  ● Coal's high energy density and extensive reserves found in nature make it useful as a fuel for electricity generation in coal-fired power plants, and in some places, heating.
• Coal

  ● Formation: 300 million years ago nadeadz yung mga ancient giant plants tapos natabunan sila nang natabunan ng dirt, rocks, or soil (deposition ata?). Due to heat and pressure exerted by the soil, nagturn yung dead plants into coal. (based sa comics ni sir)
• Coal

  ● Types of Coal

  ○ Based on the kinds and concentrations of carbon that coal contains and the quantity of heat energy that coal can provide.

  ○ Peat: the initial stage of the development of coal. Made from decayed plant fibers. High moisture content and won't last long for burning.

  ○ Lignite: “brown coal” that is soft and has a woody texture. Less moisture.
• Coal ● Types of Coal

  ○ Bituminous: a sedimentary rock that contains impurities like sulfur. Dark or brown in color and soft. High hydrocarbon content and low moisture; used in industries. ○ Anthracite: metamorphosed into almost pure carbon. Hard and Brittle. The least amount of moisture; is also used in industries.
• PETROLEUM & NATURAL GAS

  ● Petroleum: made from decomposed organisms that were often found in oceans and seas. The organism's sediments accumulate and are digested over time under pressure and heat, and eventually convert into liquid. On the other side, the crude oils are refined into diesel, gasoline, and kerosene.
• PETROLEUM & NATURAL GAS

  ● Natural Gas: formation is similar to petroleum. The methane rises from the oil; therefore, the sources of this gaseous fossil fuel are above the oil source.
• PETROLEUM & NATURAL GAS

  ● Formation: 300-400 million years ago obvi nadeadz yung mga ancient marine plants and animals tapos natabunan sila nang natabunan ng sand and silt (deposition din ata?); REMEMBER USUALLY UNDER THE SEA. They’re buried deeper and deeper so mas enormous yung heat and pressure that turns yung remains ng animals into oil and gas. (based sa comics ni sir)

  ● Extraction: Drilling down through the sand and silts to reach the rock formation that contains oil and gas deposits.