Tag: chemistry

Coke is a better fuel because coke  produces more heat on burning as compared to coal. Coke has higher calorific value than coal. When equal masses of coke and coal are bunt, coke produces more heat. Also when coke is burnt, smoke is not obtained whereas coal produces smoke on coal.

Coke is used in the preparation of producer gas which is a mixture of carbon monoxide and nitrogen. Producer gas is produced by passing air over red-hot coke. Coke is also used to manufacture water gas.

Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system. Town gas is a more general term referring to manufactured gaseous fuels produced for sale to consumers and municipalities.

Natural coke is also called as carbonite coke. It is formed by metamorphism from bituminous coal when intrusive igneous rock cuts across vein of coal.

Coal tar is a brown or black liquid of extremely high viscosity. Coal tar is among the by-products when coal is carbonized to make coke or gasified to make coal gas.

Coal tar is also known as liquor carbonis detergents (LCD), and liquor picis carbonis  (LPC), can be used in medicated shampoo, soap and ointment, as a treatment for dandruff and psoriasis, as well as used to kill and repel head lice.

Fixed carbon is the fuel portion of the coke. The higher the fixed carbon, the higher is the thermal value of coke.

Calcinated petcoke (CPC) has highest carbon purity and is used to manufacture aluminium, graphite electrodes, steel, titanium dioxide and other carbon consuming industries.

Foundry coke is a type of hard coke which is used for the production of cast iron and ductile products. It is an excellent source of heat and therefore it is used in industrial boilers and furnaces.

Coal tar belongs to a class of drugs known as keratoplastics. It works by causing the skin to shed dead cells from its top layer and slow down the growth of skin cells. This effect decreases scaling and dryness. Coal tar can also decrease itchiness from these skin conditions.