Fuel From Algae Visit :- www.ayouthphysicist.com

2. OVERVIEW
1. What is algae?
2. Cultivation
3. Benefits
4. History
5. Process to fuel
6. Products
7. Comparison with other sources
8. World Wide Production
9. Future Estimate

3.  Large and successful group of organisms
 Flourish in sea, in fresh water and in damped
places on land
 Contain chlorophyll so can produce their own food
 Base of aquatic food chain
 Natural occurrence in all water bodies

4. Reproduce very quickly and need only sunlight (or
other forms of energy, like sugar, water, CO2 and a
few inorganic nutrients to grow).

5.  In large ponds, or in closed bioreactors using
enriched CO2
 In large fermenters using sugar or starch
 Some in sea water
Grows rapidly, faster than any other
plant

6. New, sustainable, and domestic alternative to
petroleum fuel.
Three reasons for opting algae as fuel-
1.) National Energy Security
2.) Economic Security
3.) Climate Change

7.  New source of fuel and other products
 Grows fast
 Have biofuel yields
 Consume CO2
 Can be used as fuel and food
 Can be used as energy source

8.  Goes more than half a century back
 1950s: production of methane gas from algae was
proposed
 1970s: received impetus during energy crisis
 1980-1996: US department of energy supported
the AQUATIC SPECIES PROGRAM (ASP)
 In INDIA, Algae Bio-Tech India Pvt. Ltd. (Algae
India) works on it

9. Sugar beet Wheat
Sugar cane corn
sweet sorghum barley
Sucrose-containing
feedstocks
Starchy materials
1st
generation
wood
straw
grass
lignocellulosic
biomass
2nd
generation
algal biomass
Algal biomass
3rd
generation
BIO-ETHANOL PRODUCTION
(with various feedstocks)
3rd GENERATION FUEL

10. ALGAE FUEL
Can be used to produce different types of fuel :–
biodiesel, biojet fuel, green gasoline, others. Have
the ability to meet our transportation fuel needs.
1. BIO DIESEL:
Clean-burning alternative fuel, produced from
domestic, renewable that can be used in
compression- ignition (diesel)
engines with little or no modifications.
2. RENEWABLE AVIATION FUEL:
Also known as biojet fuel. Biofuel made from
sustainable sources (such as vegetable oil,
sugars, animal fats and even waste biomass).

11. FROM POND TO FUEL

13. Various methods:
A.) CONVENTIONAL METHODS:
 Oil Expeller/Press
 Solvent Extraction
 Supercritical Fluid Extraction
B.) RECENT METHODS:
 Enzymatic Extraction
 Ultrasound Assisted Extraction

14.  Oil Expeller/Press: high mechanical
pressure , extracts 70-75% oil
 Solvent Extraction: common solvent-
hexane , 95% recovery
 Supercritical Fluid Extraction: extracts
almost 100%

15.  Enzymatic Extraction: enzymes degrade
cell walls with water acting as solvent
ALGAE ENZYME
 Ultrasound Assisted Extraction: helps to
breakdown the algae cell structure and
expose more oil for extraction
Enzymes degrade algae
cell walls
Algae oil

17. Algae provides an attractive source of alternative
fuel because it has the potential to yield oil at an
exponentially greater rate than other biofuels.
18 48 102
3500*
0
500
1000
1500
2000
2500
3000
3500
4000
Corn Soyabeans Sunflowers Algae
Gallon per year
ESTIMATED GALLONS OF OIL YIELDED ANNUALLY PER ACRE OF BIOFUEL CROP
* Estimatesrange from 3500
gallonsper yearto upto20000
gallonsper year

18.  Human nutrition and health
products
 chemicals
 cosmetics

19. ADVANTAGES-
 Deliver clean energy
 Higher yield time
 Do not affect fresh water resources
 Biodegradable
DISADVANTAGES-
 Production is still expensive
 Possibility of contamination

24.  Algae biodiesel - a feasibility
report- by Yihe Gao, Dawei
Tang
 Chemistry Centre Journal
 Microalgal fuel production
processes- by Nagle, N. Lemke
 Fuels from microalgae: technology,
status, potential- by Neenan B.,
Feinberg
 Algae biomass production and
use- by Shelef ,G., Soeder
 Fuel options from microalgae-
by Feinberg

25. THANK YOU