How is coal gas obtained?
Coal gas, gaseous mixture—mainly hydrogen, methane, and carbon monoxide—formed by the destructive distillation (i.e., heating in the absence of air) of bituminous coal and used as a fuel. … Coal tar and coke (qq. v.) are obtained as by-products.
How was coal gas extracted from coal?
Underground coal gasification (UCG) is an industrial gasification process, which is carried out in non-mined coal seams. It involves injection of a gaseous oxidizing agent, usually oxygen or air, and bringing the resulting product gas to the surface through production wells drilled from the surface.
Why is coal gas poisonous?
Poisoning from natural gas appliances is only due to incomplete combustion, which creates CO, and flue leaks to living accommodation.
Why coal gas is not used for cooking?
As coal is also a fossil fuel, it is produced in nature from the dead & decayed remains of plants and animals after millions of years of processes. So we cannot use them on a regular basis as a cooking fuel to check their depletion.
Is coal still being formed?
Coal is very old. The formation of coal spans the geologic ages and is still being formed today, just very slowly. Below, a coal slab shows the footprints of a dinosaur (the footprints where made during the peat stage but were preserved during the coalification process).
Why coal is the best energy source?
Cheapest source of energy. It is by far cheaper than nuclear, natural gas, oil. … Coal also provides a stable source of energy (no Arab oil embargoes, no sudden scarcity like you experience with natural gas) and there is a very plentiful supply both in the U.S. and in other foreign countries.
Is coke obtained from coal tar?
Coal tar: It is obtained as a by-product in the process of making coke. Though its colour is the same as coke, tar is a highly viscous liquid.
Coal And Its By – Products: Coke, Tar And Coal Gas.
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How do we get natural gas from coal?
The process involves pumping oxygen and steam through a small borehole into the coal seam to produce a small and controlled combustion. Unlike coal-bed methane, therefore, the actual coal is converted from a solid state into gas.
What are the products obtained from coal?
COKE, COAL TAR, COAL GAS are the products obtained from coal.
- Coal Gas is used as a fuel for cooking food.
- Coke is used as a fuel and as a reducing agent in steel manufacturing .
- Coal Tar is used to make plastics, paints, dyes, naphthalene balls and explosives.