Green Coal Project

Green Coal Project
Green Coal Project
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Product Code : 10
Price And Quantity
  • Minimum Order Quantity
  • 1 Unit
  • Price
  • Onwards 50 Lakh INR
Product Description

Green Coal Project

Bio fuel is made from food and agro waste and is essentially compressed block which has higher calorific value and bulk density than the original bio waste from which it is made. Thus it becomes easier & cheaper to handle and transport.

Green Coal is Torrefied Bio Fuel in Pellet or briquette form.

During Torrefication at 250-300 Deg C,  with control of heating and atmosphere, leads to total loss of moisture and partial (20%) loss of volatile matter, where  most of the oxygen in biomass is removed This results in brittle, hydrophobic and higher calorific value green coal material.

The hydrophobic Bio fuel, i.e., green coal, can be stored in open atmosphere without any special protection

Green coal in pellet form has  characteristics  compatible with Coal (ie. Heating Value, Grind ability,  Bulk Energy density, Hydrophobic, easy transportation, Co-firing  in a pulverised coal fired Power Plant, cement kilns, Coke and Steel Industry (for charred Biomass)

Green Coal has improved combustion which is important when used as a heating fuel.

Combustion Quality as achieved when burning a certain fuel is measured by different factors such as :  Heating Value ,moisture content, reactivity, particle size and importantly  ash content.

Green coal has a higher  reactivity, largely due to high amounts of volatile matter (55-65% as compared to 10-12% for Coal. So, it can work as smokeless fuel.     

The driving force is lowering Green House Gases. 

Main commercial applications for Torrefied Biomass can be found in

          1)      Co-firing in coal fired power plants ,
  2)      Industrial Heating as in Combustion ,
          3)      Domestic Heating in Cooking stove and Boilers for Hot water etc.

It would be smoke less, generate far less ash and provide heat comparable to coal

without having its disadvantages.                              

4) Small scale Domestic Boilers used for heating water or space in

residential and commercial buildings can be an application because of

higher Energy & Bulk Density.

5) Can also be used in Steel Plant Blast Furnaces and Cement kilns.

Green coal has higher calorific value as follows:
1)      Wood                            9-12 MJ/kg
2)      Wood Pellet -                  15-18 MJ/kg
3)      Green Coal  21-24 MJ/kg),

4)    Coal                               23-28MJ/kg

Green coal has has higher Density (kg/m3)             

1)      Wood                            0.20-0.25
2)      Wood pellet                    0.55-0.75
3)      Green Coal .      0.75-0.85
4)      Coal                            0.80-0.85

Green coal has higher Energy Density (GJ/m3)   

1)      Wood                            2.0-3.0
2)      Wood Pellet                     7.5-10.4
3)      Green coal                       15.0-18.7
4)      Coal                            18.4-23.8

The commercial market is rapidly developing for green coal and from the trend in Europe, pellet requirement as a partial substitute for coal is exploding.

The main reason is to contain greenhouse gases.

At present  5 Million tons/yr is the actual  export of  wood pellets from Canada to Europe, and is  going up to 20 M tons by 2020. This is the forecast.

If just a fraction of this is  Torrefied, it will be huge quantity and a justification for Indian market to produce green coal and not just stop with white pellets.

Conversion of bio waste into green coal has additional advantage of getting the best bio fuel without exploiting wood. A highly profitable commercial venture with double social and environmental advantage of disposing off the waste and of also reducing the green house effects.


Vegetable waste along with the left over foods from air lines, hotels and restaurants will be fed into hopper of a suitable conveyor which would lead these into a particle size reduction system.

The feed would be reduced to a size less than 1 mm. This would then be filtered for removing excessive moisture, dried in a Continuous Conductive Dryer ( CCD ) and compressed to form pellets of solid bio fuel of required sizes of 10 12 % moisture. This compressed & dried bio mass can converted, if desired, into green coal of 0 % moisture in a torrefactor.

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