:: Fuels - Industrial Fuels --- ID :: 15553
BIO DIESEL
Bio-diesel

"Biofuels" are transportation fuels like ethanol and biodiesel that are made from biomass materials. These fuels are usually blended with the petroleum fuels — gasoline and diesel fuel, but they can also be used on their own. 

USES OF BIODIESEL:

Biodiesel is an environmental friendly fuel generally produced from edible and non-edible vegetable oils.  It can partly or fully replace diesel as a direct fuel. Practically, Biodiesel can be used in every diesel engine powered vehicle on the roads. (Millions of miles were logged on biodiesel in EU nations). It is used in road construction, mining, farm machinery and in marine engines safely. With new power generation capacity coming online, Biodiesel makes an attractive choice to meet the regulations. Many stationary applications are permitted sources requiring exhaust emission control system, which will work well with biodiesel but will not work with diesel fuel. With many states now mandating hybrid electric vehicles (including the fuel cell hybrid), biodiesel will make excellent reforming fuel.

Physical properties of Biodiesel :

 Colour                                        :         Deep yellow to dark brown

 Kinematic Viscoscity at 40Deg C    :         4.0-14.0 mm2/SEC

 Sp. Gr.                                        :         0.86 - 0.90

 Ash (% by mass)                         :         <0.2

 Sulphur                                       :         Nil

 Boiling point                                 :         240-360 deg C

 Flash Point (Closed up)                  :         120 deg C min.

  

Comparison of Biodiesel vis-à-vis diesel



Comparison of Specifications diesel / Biodiesel.

Sl No

Property

Units

BIS Limits diesel

BIS Limits Biodiesel

 

1

Density at 15 0C

kg/m3

820 - 860

860 - 900


2

Viscocity at 40 0C

mm2/s(cst)

2 - 5

2.5 - 6.0


3

Flash Point (Closed Cup)

0C (min)

66

120


4

Sulphur Content

mg/kg (max)

500

50


5

Carbon Residue

% mass max

0.3

0.05


6

Acid Number

mg KOH/gm max

To report

0.5

7

Cetane Number

min

48

51


8

Ash Content

% mass max

0.01

0.02


9

Moisture Content

mg/kg (max)

NA

500


10

Total Contaminations

mg/kg (max)

24

24


11

Copper Corrosion Test (at 50 0C for 3 hrs max)

Rating/Class

1

1


12

Oxidation Stability at 110 0C

hrs.min

NA

6


13

Ester Content

% mass min

NA

96.5


14

Methanol Content

% mass max

NA

0.2


15

Monoglyceride Content

% mass max

NA

NA


16

Diglyceride Content

% mass max

NA

NA


17

Triglyceride Content

% mass max

NA

NA


18

Free Glycerin

% mass max

NA

0.02


19

Total Glycerin

% mass max

NA

0.25


20

Iodine Value

gm I2/100 gm

NA

To report


21

Linolenic Acid Methyl Ester

% mass max

NA

NA


22

Polyunsaturated Methyl Esters

% mass max

NA

NA


23

Phosphorus Content

mg/kg (max)

NA

10


24

Alkali Content (Na + K)

ppm (mg/kg) max

NA

To report


25

Alkaline Earth Metals (Ca + Mg)

ppm (mg/kg) max

NA

To report


 

 


01.  Comparison of Biodiesel vis-à-vis LDO Fuel :


Technical Specification

BIS Standard for LDO

LDO of oil Marketing companies

Biodiesel

Remarks

Calorific Value, in Kcal/kg

9900 - 10500

10300

9900 - 10500

very similar to LDO

Ash% Mass, Max

0.02

0.01-0.02

0.01

Lower the ash better the performance

Carbon Residue (Ramsbottom) on 10% residue % by Mass, Max

1.5

1.5

<1.0

lower the carbon residue, better the performance

Density in Kg/M3

To be reported

<890

870-900

Very similar to that of LDO

Kinematic Viscosity @ 40 Deg.C. in cst

5-15.7

5-15.7

4-14

Lower the viscosity better the performance

Biodegradability

Poor Biodegradability

 

Degrades readily

 

Toxicity

Highly Toxic

 

Essentially non toxic

 

Fuel type

Polluting Non renewable

 

Clean renewable

 

Shipping

Hazardous

 

Non Hazardous    Non Flammable

 

Total Sulphur % by mass. Max

1.8

1.5-1.8

Almost nil

Lesser the sulphur content better the efficiency and more eco-friendly

Water content, % by volume, Max

0.25

0.25

0.05-0.20

Lesser water content yields better effect

Flash Point in Deg.C Min

66

66

>120

Higher the flash point, safer the fuel & no need of explosive or storage license

 

          Sectors using Biodiesel :

 

Presently our customers are using Biodiesel for the following usages –

 

i)                 Textile industries uses as coning oil.

ii)               Chemical industries for usage as lubricant.

iii)              Jute industries as replacement of jute batching oil.

iv)             Marine industries replacing diesel by Biodiesel for fishing tra wler.

v)              Mining industries for use in the heavy duty earth moving equipment.

vi)             Stationery power generation industry for testing oil in boiler.

vii)           Pharma and Hotel Industries are replacing diesel with bio-diesel as a  boiler fuel.