write a short note on coal gas
Answers
Explanation:
Coal tar is a thick black liquid which is a by-product of the production of coal gas and coke. It contains benzene, naphthalene, phenols, aniline, and many other organic chemicals. Coal tar is used for medical and industrial purposes. However, coal is also known as cutar, balnetar, liquor carbonis detergens, liquor picis carbonis, etc.
#The following are the uses of coal tar :
Coal tar is used as the medication to heal itching, scaling, and flaking due skin conditions.
It is also used in making medicated shampoo to treat dandruff and to kill lice.
Soaps are made from coal tar.
Various phenolic coal tars have the properties of a painkiller.
Coal tar is used to protect and beautify the underlying pavement.
Coal is also used to make parking lot seal – coat products.
Roads are made with the use of coal tar.
Coal tar is flammable in nature. Hence, it is used for heating.
Binders used in graphite industry to make green blocks have coal tar in them.
Manufacture paints, synthetic dyes, and photographic materials contain coal tar.
#Properties of Coal Tar
The following are the properties of coal tar :
Coal tar is black in color.
It’s a semi-solid and semi-liquid in nature and is less permeable.
Its density is very thick and It has a peculiar smell.
Tar is insoluble in nature which means that it can’t dissolve in water.
It has a boiling point of two hundred to two hundred and fifty-degree celsius.
Its a fuel resistant and has more temperature susceptible than asphalt cement.
Answer:
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. Sometimes steam is added to react with the hot coke, thus increasing the yield of gas. Coal tar and coke are obtained as by-products.
Explanation:
Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system. It is produced when coal is heated strongly in the absence of air. Town gas is a more general term referring to manufactured gaseous fuels produced for sale to consumers and municipalities.
Coal gas contains a variety of calorific gases including hydrogen, carbon monoxide, methane, ethylene and volatile hydrocarbons together with small quantities of non-calorific gases such as carbon dioxide and nitrogen.
Prior to the development of natural gas supply and transmission—during the 1940s and 1950s in the United States and during the late 1960s and 1970s in the United Kingdom and Australia—virtually all gas for fuel and lighting was manufactured from coal. Town gas was supplied to households via municipally owned piped distribution systems.