Title: What is coal tar what are its uses?
1What is coal tar what are its uses?
- What is coal tar?
- Coal tar is a thick black liquid that is a
by-product of the production of coal gas and
coke. It contains many biochemicals such as
benzene, naphthalene, phenols and aniline. It
gets used for medical and industrial purposes.
However, coal is also known as Mulch, Balnet,
Alcohol Carbonis detergents, and Alcohol
Carbonaceous Carbonis.
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2What are the uses of coal tar?
- Coal tar is a remedy for itching, scaling and
skin diseases. - It gets used to treat dandruff and lice and gets
used for medicated shampoos and soaps. - Various phenolic coal tars have analgesic
properties. - Coal tar gets used to protect and beautify
pavements, roads and parking lot seal-coat
products. - Coal tar is flammable. Therefore, it gets used
for heating. - Coal tar is one of the binders used for making
green blocks in the graphite industry. - Coal tar gets used in construction paints,
synthetic dyes and photographic materials.
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3What are the properties of coal tar?
- The characteristics of coal tar are
- The colour is black.
- It is semi-solid and semi-liquid in nature and is
highly permeable. - Its density is very thick and has a
characteristic odour. - Tar is insoluble in water.
- It has a boiling point between two hundred and
fifty degrees Celsius. - It is fuel resistant and is subject to higher
temperatures than asphalt cement
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4What is coal gas?
- Coal gas is one of the most useful fossil fuels.
The mixture of gases obtained by distillation of
coal got used for lighting and heating
historically. - It has many applications like domestic heat
generation, industrial generator firing, and cast
iron manufacturing. These byproducts are also
beneficial for us.
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5What are the uses of coal gas?
- Uses of coal gas are
- Most commonly, it is used as fuel.
- Coal gas gets used for lighting.
- It gets used for heating.
- Most of the people use this gas for cooking.
- Coal gas is also used as a lighter material.
-
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6What is the formation of coal gas?
- Coal gas gets extracted from the distillation of
soft coal, a by-product of coke. It has no
definite structure. Most coal gases contain some
hydrogen methane and other hydrocarbons, such
as carbon monoxide (carbon dioxide), carbon
dioxide and nitrogen.
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7Coal oil and gas production
- Plants and animals decompose to produce fossil
fuels. These fuels are found in the Earths crust
and contain carbon and hydrogen. We can burn
these fuels to produce energy. Oil first got
discovered as a solid between layers of
shale-like debris. - Fossil fuels include crude oil, coal and
natural gas. They got created over millions of
years from the remains of dead organisms (coal
formed from dead trees and other plant waste).
Dead sea creatures also got used to generate
crude oil and gas. Petroleum is a fossil fuel
also known as crude oil. - Petroleum gets produced from the remains of
ancient marine life such as plants, algae and
bacteria, and coal and natural gas. It is a
fossil fuel composed of microscopic plants and
animals. When these species die, they sink to the
bottom of the ocean and become trapped under
several layers of sand and silt.
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8What is the structure of coal gas?
- Coal gas, also known as a gas mixture, is the
fuel for hydrogen, methane, and carbon - monoxide, produced by destructive distillation
(continuous heating in the absence of - air) of bituminous coal. Coal is composed of
carbon with varying proportions of - additional elements such as hydrogen, sulphur,
oxygen and nitrogen. Coal gets - produced when dead plant matter gets
theoretically decomposed. Then the - decomposed matter gets converted into coal by the
heat and pressure of a deep grave - over millions of years.
- The general composition of coal gas is as
follows - Hydrogen 50
- methane 35
- carbon monoxide 10
- ethylene 5
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9What are coke and its uses?
- Coke is a high carbon product obtained by
destructive distillation of coal. Coke is high - in carbon, which is said to be an almost pure
form of carbon. Coke is grey-black, thick - and porous.
- Uses of Coke
- The most common use of coke is as a fuel for
stoves, furnaces and kilns. It is sometimes
preferred over coal because burning coal produces
far less smoke. - It is also used for the production of iron in
blast furnaces. - Coke is used to make steel and many other
materials.
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10Frequently asked questions (FAQ)
- 1. What is producer gas?
- Producer gas is the product of burning coal or
coke with a small amount of air and a limited
amount of moisture. Producer gas is a gaseous
mixture of carbon monoxide, hydrogen, carbon
dioxide and nitrogen. -
- 2. What is the difference between coal gas and
natural gas? - Coal gas is a flammable gaseous fuel that is
produced from coal and supplied to the end
consumer. Natural gas is a fossil fuel used for
heating, cooking and generating electricity. -
- 3. Why is coal gas poisonous?
- The nitrogen in coal, like sulfur, reacts with
oxygen in the air to form nitrogen oxides.
Nitrogen oxides can react with them to produce
ozone and other pollutants. Humans and other
animals and plants are at risk from these toxins.
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11Frequently asked questions (FAQ)
- 4. Is coal gas still used?
- Coal gas is combustible and was used for heating
and municipal lighting prior to the large-scale
extraction of natural gas from oil wells. In
current practice, large-scale coal gasification
installations are primarily intended for power
generation or chemical production. -
- 5. What is coal made of?
- Coal is a waste rock that is black or grey-black
in colour and can be burned for fuel or used to
generate energy. It is primarily composed of
carbon and hydrocarbons, both of which contain
energy that can be released during combustion
(burning).
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