Chemistry in Everyday Life | Chapter 15 | 8th Science - Other Gases | 8th Science : Chapter 15 : Chemistry in Everyday Life
Chapter: 8th Science : Chapter 15 : Chemistry in Everyday Life
Other Gases
Other Gases
Apart from natural gas, there are
some other gases which are used as fuel. Producer gas, coal gas, bio gas and
water gas are some of them.
Producer Gas
Producer gas is a gaseous mixture of
carbon monoxide and nitrogen. It is produced by passing air mixed with steam,
over red hot coke at a temperature of 1100 ˚C. It is used as an industrial fuel
for iron and steel manufacturing.
Producer gas is known by different
names in different countries. It is referred as Woodgas in USA and as Suction
gas in UK.
Coal Gas
It is a mixture of gases like
hydrogen, methane and carbon monoxide obtained by the destructive distillation
of coal. Heating coal in the absence of air is called destructive distillation.
It is used in heating open hearth furnace in the manufacture of steel. It is
also used as a reducing agent in certain metallurgical operations.
Water Gas
It is a gaseous mixture of carbon
monoxide and hydrogen. It is made by passing steam over incandescent coke at a
temperature of 1000°C.
C(g) + H2O(g)
---1000°C→ CO(g) + H2 (g)
It is also called as syngas or synthesis gas
as it is used to synthesize methanol and simple hydrocarbons. It is used as an
industrial fuel also.
Bio-Gas
Bio-gas is a mixture of methane and
carbon dioxide. It is produced by the decomposition of plant and animal waste
which form the organic matter. The breaking down of organic matter in anaerobic
condition (ie., in the absence of oxygen) leads to the formation of biogas. It
is an example for renewable source of energy.
Activity 3
Visit a bio-gas plant in your area with your teacher. Find out how it is prepared. Discuss about the uses and advantages of bio gas. In what way it will be helpful to the people in rural area?
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