Petroleum and coal form from the accumulated organic matter of ancient organisms
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Reference materials and scientific literature confirm that petroleum and coal are fossil fuels formed from the accumulated and transformed organic matter of ancient organisms.
fossilized as with coal, or freshly harvested. The majority of bitumen, on the other hand, was formed naturally when vast quantities of organic animal materials
Bitumen (UK: BIH-chuum-in, US: bih-TEW-min, by-) is an immensely viscous constituent of petroleum. Depending on its exact composition, it can be a sticky, black liquid or an apparently solid mass that behaves as a liquid over very large time scales. In American English, the material is commonly referred to as asphalt. Whether found in natural deposits or refined from petroleum, the substance is
The majority of bitumen used commercially is obtained from petroleum. Nonetheless, large amounts of bitumen occur in concentrated form in nature. Naturally occurring deposits of bitumen are formed from the remains of ancient, microscopic algae (diatoms) and other once-living things. These natural deposits of bitumen have been formed during the Carboniferous period, when giant swamp forests dominated many parts of the Earth. They were deposited in the mud on the bottom of the ocean or lake where the organisms lived. Under the heat (above 50 °C) and pressure of burial deep in the earth, the remains were transformed into materials such as bitumen, kerogen, or petroleum.
Natural deposits of bitumen include lakes such as the Pitch Lake in Trinidad and Tobago and Lake Bermudez in Venezuela. Natural seeps occur in the La Brea Tar Pits and the McKittrick Tar Pits in California, as well as in the Dead Sea.
On the other hand an overwhelming and increasing majority of those who have studied the natural conditions under which petroleum occurs are of opinion that it is of organic origin. The earlier supporters of the organic theory held that it was a product of the natural distillation of coal or carbonaceous matter; but though in a few instances volcanic intrusions appear to have converted coal or allied substances into oil, it seems that terrestrial vegetation does not generally give rise to petroleum. Among those who have considered that it is derived from the decomposition of both animal and vegetable marine organisms may be mentioned J. P. Lesley, E. Orton and S. F. Peckham, but others have held that it is of exclusively animal origin, a view supported by such occurrences as those in the orthoceratities of the Trenton limestone, and by the experiments of C. Engler, who obtained a liquid like crude petroleum by the distillation of menhaden (fish) oil.
Biomass
Biomass is a basic term in ecology, and in the energy production industry. Organic waste such as dead plant and animal material, animal dung and kitchen waste can be converted into gaseous fuel called biogas. The organic waste is decomposed by bacteria in biogas digesters to emit biogas which is essentially a mixture of methane and carbon dioxide. In ecology, biomass means the accumulation of living matter. It is the total living material in a given area or a biological community or group. Biomass is measured by weight, or by dry weight, per given area (per square metre or square kilometer). In the energy industry, it refers to biological material which can be used as fuel or for industrial production. Biomass includes plant matter grown for use as biofuel, and also includes plant or animal matter used for production of fibres, chemicals or heat. Biomass may also include biodegradable wastes which can be burnt as fuel. It excludes organic material which has been transformed by geological processes into substances such as coal or petroleum. It is usually measured by dry weight.
CO2 emissions from fossil-fuels (% of total)
Fossil fuel is any hydrocarbon deposit that can be burned for heat or power, such as petroleum, coal, and natural gas. This is the sum total of all fossil fuel emissions (solid fuel consumption, liquid fuel consumption, gas fuel consumption, cement production and gas flaring).
Source organisation: Food and Agriculture Organization, electronic files and web site.
1911 Encyclopædia Britannica/Marsh Gas
MARSH GAS (methane), CH4, the first member of the series of paraffin hydrocarbons. It occurs as a constituent of the “fire-damp” of coal-mines, in the gases evolved from volcanoes, and in the gases which arise in marshy districts (due to the decomposition of vegetable matter under the surface of water). It is found associated with petroleum and also in human intestinal gases. It is a product of the destructive distillation of complex organic matter (wood, coal, bituminous shale, &c.), forming in this way from 30 to 40% of ordinary illuminating gas. It may be synthetically obtained by passing a mixture of the vapour of carbon bisulphide with sulphuretted hydrogen over red-hot copper (M. Berthelot, Comptes rendus, 1856, 43, p. 236), CS2 + 2H2S + 8Cu = 4Cu2S + CH4; by passing a mixture of hydrogen and carbon monoxide over reduced nickel at 200–250° C., or hydrogen and carbon dioxide at 230–300° C. (P. Sabatier and J. B. Senderens, Comptes rendus, 1902, 134, pp. 514, 689); by the decomposition of aluminium carbide with water [H. Moissan, Bull. Soc. Chim., 1894, (3) 11, p.
Today, a majority of the world’s energy need is supplied through sources that are finite and, at the current usage rates, will be consumed shortly. The high energy demand and pollution problems caused by the widespread use of fossil fuels make it increasingly necessary to develop renewable energy sources of limitless duration with smaller environmental impact than the traditional energy sources. Three fuels – rapeseed methyl ester (RME), Fischer-Tropsch (FT) diesel and FT jet fuel – derived from biomass, coal or gas were evaluated in this project. The fuel properties evaluated are in most case
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