know about bio gas and bio gas plant

1. BiogasBiogas
As an alternative fuel

2. What is a bio gas?What is a bio gas?
Mixture of methane and other gases produced from
the decompossion of organic materials.
Biogas is mainly a mixture of methane(50%-60%),
carbon di-oxide and hydrogen sulphide.
It is produced from bio mass from nature.
It is renewable source.
2

3. propertiesproperties
Property value
Calorific value 4500-5000 Kcal/m3
Ignition temperature 650°C
Octane rating 130
Air to fuel
ratio(stoichiometric)
10:1
Explosive limit to air by
volume
5-15
3

4. How it produces?How it produces?
Produced from biomass( leaves, animal dropping
and other agricultural waste) when it is fermented in
an anaerobic(oxygen free) manner.
Approximately 67 m3
of gas can be produced from 1
ton of biomass.
the decomposition process is natural and inevitable.
4

5. The bio gas formation mainly happens in
three stages.
5

6. Bio gas production depends on various factors such
as
6

7. Composition of biogasComposition of biogas
7
Constituent Percentage
Methane 50-60
CO2 30-45
Hydrogen Sulphide 5-10
Nitrogen 0.5-0.7
Water trace

8. Biogas plant(BGP)Biogas plant(BGP)
An air tight container to facilitate suitable
conditions to biomass for biogas production.
Also known as biogas digester, biogas reactor,
methane reactor or methane generator.
Provides biogas as well as bio-fertilizer.
8

9. 9

10. Components of biogas plantComponents of biogas plant
10

11. AdvantagesAdvantages
 Clear burning of fuel with less emission
 Low cost
 Generated from waste
 Displace fossil fuel
 Reduce ground water contamination
 Prevent door pollution
 Boost rural economy
 Solves the waste problem for dairy, hog and poultry farmers
11

12. DisadvantagesDisadvantages
Is corrosive in nature due to presence of
HS(hydrogen sulphate) if untreated
Flammable and explosive if accumulated in
enclosed space
Toxic if accumulated due to presence of carbon
monoxide
12

13. UsesUses
as cooking gas for cooking purpose in homes,
schools and hotels etc.
As alternate fuel for automobile though not useful
up to the mark
In power generation unit of small capacity
13

14. Thank you
Thank you
14