The document discusses biomass gasification and compares LPG and CNG. It describes the basic process of biomass gasification which involves drying, pyrolysis, combustion, and reduction to produce a combustible gas mixture. It notes the importance of biomass as a green, clean, sustainable and convenient source of energy. The document also outlines the typical composition of producer gas from rice husk and woody biomass gasification. Applications mentioned include power generation, thermal uses, and simultaneous charcoal and power production. Advantages listed for biomass include being carbon emission friendly, environmentally friendly, efficient, and economical while using waste. The only disadvantage mentioned is smell from waste plants in tight spaces.

1. LOGO

2. Contents
1 Tale to Heights
2 What is Biomass Gasification?
3 Importance, Composition and Application
4 LPG versus CNG
5 Pros and Cons
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3. The tale to heights
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4. The tale to heights
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5. The tale to heights
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6. The tale to heights
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7. The tale to heights
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8. The tale to heights
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9. What is Biomass Gasification?
Basic Process Chemistry
− Conversion of solid fuels into combustible gas
mixture called producer gas
(CO + H2 + CH4)
− Involves partial combustion of biomass
− Four distinct process in the gasifier viz.
• Drying
• Pyrolysis
• Combustion
• Reduction
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10. Gasification –
Basic Process
Chemistry
Schematic

11. Importance of Bio-mass
Provides Energy that is
Green,
Clean,
Sustainable &
Convenient
at costs that enable all to use it
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12. Producer Gas - Composition
Particulars Rice Husk Woody Biomass
CO 15-20% 15-20%
H2 10-15% 15-20%
CH4 Upto 4% Upto 3%
N2 45-55% 45-50%
CO2 8-12% 8-12%
Gas C.V. (kcal/Nm3) Above 1050 Above 1100
Gas generated in 2 2.5
Nm3/kg of biomass
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13. Applications
Power Generation Thermal Applications
o Irrigation Pumping o Hot Air Generators
o Village Electrification o Dryers
o Captive Power (Industries) o Boilers
o Grid-fed Power from energy o Thermic Fluid Heaters
Plantations on Wastelands
o Ovens
o Simultaneous Charcoal and
o Furnaces & Kilns
Power Production
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14. LPG versus CNG
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15. CNG LPG
− Cost Effective
− High cost
− Renewable
− Nonrenewable
− Free of danger
− Dangerous to use
− Uses natural wastes
− Uses organic products
− Eco-friendly
− Not eco friendly
− Waste management
− Waste accumulation
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16. Advantages of Bio-Mass
 Carbon emission is normal as compared
to the Earth’s Carbon cycle
 Environment friendly
 Clean, Efficient and Economical
 Uses raw materials like manure,
food wastes etc
 Do not create waste
 Good source of energy
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17. Disadvantages of Bio-Mass
The only negative aspect is the waste
plant is too smelly. So in a tight and congested
place it is not too good.
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18. LOGO
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