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Designed & Maintained by CH

What is briquetting ?

Briquetting is the process of converting low bulk density biomass into high density and energy concentrated fuel briquettes.

Large numbers of plant are being put up in under-developed and developing countries to meet the need of fossil fuels in areas located far away from mines. Briquettes of 2” to 2.5” diameter are quite useful in low capacity fixed grate firing installation. Currently we are seeing the demand of briquette rise, as more and more coal fired installations are getting retrofitted to use biomass briquettes.

Briquettes have these three essential features about them.

High density : bulk density > 750 kg/m3.

Low moisture : about 8-10%.

Easy to store, transport and handle for firing.

Advantages of Briquettes

• Biomass briquettes have high caloric value ranging from 3500 to 4200 Kcal per kg

• Moisture  content of fuel briquettes is less then 10%

• The ash content is only 2% to 10% as compared to 20% to 40% in coil.

• It is equal to B grade coil in terms of caloric value.

• They are non-polluting as they do not emit sulphur or fumes and fly ash, eliminating the need for expensive pollution control equipments.

• The bulk density is in the range of 800-900 kg/m3

S.No

Particulars

Fire Wood

Sun

Coal B

1

Calorific value

2500 to 3000

4200 to 4500

4500 to 6000

2

Ash

20 to 28 %

0.5 to 6 %

25 to 50%

3

Pollution, Poisonous effluent Smoke

Smoke

No Smoke, No Sulphur

Sulphur,Co2,

phosphorous fumes

4

Moisture

25 to 35 %

8 %

10 %

5

Cost

Rs. 3.5 /kg

Rs.5.5 /Kg

Rs. 7 /kg

6

Efficiency

50%

75%

70%

7

Wastages

20%

10%

15%

8

Labour usage

Require maximum persons in

handling and cutting

Single person is enough

Require two persons

9

Boiler effigy

Require regular maintenance

normal Fly ash deposit

on tubes

high wear & tear

10

Handling

Tough require more areas

Easy because

of packed material

Tough

COMPARISSON OF SUN COMPANY WITH OTHER FOSSIL FUELS