Biomass
"Biomass" is a natural substance having combustible organic matter, generally refers to renewable organic matter generated by Plants through the process of 'Photosynthesis', in which, Plant uses 'Solar Energy', 'Carbon Dioxide' and 'Moisture' to form Carbohydrates and Oxygen.
'Biomass' contains C, H and O, which are oxygenated hydrocarbons.
'Biomass generally has high volatile matter constituents, high moisture and low bulk density, low calorific value. Few examples of 'Biomass' are branches of tree, Twigs, Coconut shell, Ground nut shell, Corn Cob, Bagasse, Stalk of plants, Rice Husk, Saw Dust etc.
Biomass Gasification
"Biomass Gasification" " is a process of conversion of Biomass (solid fuels like wood / wood waste, agricultural residues etc.) into a 'Combustible Gas Mixture, normally called as "Producer Gas".
The Biomass is put in a reactor, subjected to various Thermo Chemical changes to give out "Producer Gas".
'Producer Gas' can be used to run 'Gas Engine-Generator' to generate mechanical power and/or electricity, can be used to replace Diesel up to 75% in 'Diesel Generators' in dual fuel mode and 100 % in pure gas engine generators, and to replace Diesel / LPG / LDO completely for heating applications.
Producer Gas
"Producer Gas" is a Low Calorific Value gas, which mainly consists of Carbon Monoxide (CO), Hydrogen (H2), Methane (CH4), Carbon Dioxide (CO2), Water (H2O) and Nitrogen (N2). Small contaminants like Char particles, Ash and Tar are also present. Cleaning makes the Gas suitable for Heating and Power generation applications.
Advantages of Biomass Gasification Technology
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Provides Sustainable & Affordable alternative to fossil fuel based power plants at low power levels. This technology can assure 'Continuous power supply' even at 'Peak load conditions'.
- Efficiency of the system is very high when compared to other Renewable energy systems such as Wind and Solar.
- Entire project is Eco-Friendly as it is "CO2 Neutral", generates very little SO2 & Nitrogen Oxides compared to conventional fossil fuel based power plants. We can have benefit of 'Green Power'.
- Improves Country's energy self reliance and reduces crippling oil import bill.
- It is a cost effective solution as it combines 'Low Unit Capital Cost' with 'Low Unit Cost of Production'. Cost of installation per kWe is about the same as for large power levels.
- "Plant Load factor" is comparable to large thermal power plants.
- The process is very energy efficient as the waste heat in the flue gases can be utilized effectively.
- This process produces 'Very Low Emissions' of un burnt primary fuel and no Fly Ash, because, Solid fuel is subjected to 'Pyrolysis' and the gas is passed through cleaning and cooling process to remove particulates.
- Biomass production & conversion activities stimulate local economics by providing employment opportunities to local people and also product & market opportunities for agribusiness.
- Economic, Social and Environmental benefits associated with Biomass make it as an attractive renewable energy option.