Dme 2 Biodiesel1

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A SUCESSFUL ALTERNATIVE FUELBY

K.KHAJA HUSSAIN N.KARTHIK

III B.TECH (Mech) III B.TECH (Mech)

DEPT. OF MECHANICAL ENGINEERINGK K I T ENGG COLLEGE

KURNOOL - 518002


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Biodiesel is the name of a clean burning alternative fuelproduced from domestic , renewable resources .

Biodiesel is defined as the mono-alkyl esters of fatty acidsderived from vegetable oils or animal fats.

In simple terms , Biodiesel is the product you get when avegetable oil or animal fat is chemically reacted with alcoholto produce a new compound known as fatty acid alkyl ester.


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Increase of energy supply security. Reduction of dependence on fossil energy

forms. Reduction of harmful locally acting emissions. Protection of soil by biodegradable products. Reduction of health hazard by using non-toxic

products. Biodiesel extends the life of diesel engines.

Biodiesel could be cheaper than conventionaldiesel.

Biodiesel has good potential for ruralemployment generation.


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Where R1 , R2 , R3 represents hydrocarbon chain of fatty acid.


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ValuesProperties

0.87 to 0.89Specific gravity

3.7 to 5.8Kinematic viscosity@ 40C

46 to 70Cetane number16,928 - 17,996Higher heating value (Btu/lb)

15,700 - 16,735Lower heating value (Btu/lb)

0.00 - 0.0024Sulphur wt %

-11 to 16Cloud pointC

-15 to 13Pour point C

60 135Iodine number

> 1600Flash point


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Edible:Soya-bean, Sun-flower, Mustard Oil etc.Non-edible:Jatropha , Curcas, Pongemia Pinnata, Neem etc.

As we cant use edible seeds for production of biodieselin our country because of its indigenous demand so we haveto use non-edible seeds like TBO , Jatropha etc.

Jatropha has been identified as the most suitable seed asa source for the production of biodiesel in India .


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Transesterification, also called alcoholysis, is the displacement of alcoholfrom an ester by another alcohol. Methanol is most commonly used for thepurpose.

Triglyceride +3 - methanol mixture of fatty esters + glycerol


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1. Technology applicable to multiple feed stocks.

2. Continuous process at atmospheric pressure and at 600c.

3. Dual reactor system operating with a patented glycerine cross flow

configuration for maximized conversion.

4. Recovery and recycling of methanol.

5. Closed loop water wash recycle to minimize waste water.

6. Phase separation by gravity process.


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1. Bio-diesel has excellent Lubricity when compared to petroleum-diesel.

2. Bio-diesels greatest ability is to reduce black smoke from vehicles.

3. Bio-diesel has highest cetane number than petroleum-diesel.

4. Highest flash point than petroleum-diesel.

5. Compatible for engine components with or without any modifications.


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1. Reduce poisonous carbon monoxide emissions.

2. Reduce ozone forming hydrocarbon emissions.

3. Reduce hazardous diesel particulate emissions.

4. Reduce acid-rains causing sulphur dioxide emissions.


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As a substitute for fast depleting fossil fuel, bio diesel had come tostay. In future, it should also serve to reduce and maintain theprice of automobile fuel.

Bio diesel plays an important role in our day to day life. So,concentrated research and developmental efforts are needed toaccelerate their penetration into various industries.


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Dme 2 Biodiesel1

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