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Biodiesel production from algaePresentation Transcript
Biodiesel production from
Shafiq uz zaman
Zain ul shahidin
Classification of energy
• Substitute for
• Subsitute for
Less common types:
Why the Interest In Biodiesel?
Renewable Resource with the largest potential
to get us off the foreign oil supply
National Energy Security is an achievable goal
with Algae Oil
Environmental Enhancement through Zero
Sulfur and the sequestration of CO2
Economics & Job Creation through keeping
the production of fuels inside the Pakistan
Introduction to algae fuels
• Contains oil
• Processed for biodiesel production
• Composed of starch and cellulose
• Processed for ethanol production
Algae Oil yield Compared to other
50-65 Gallons Per Acre Per Year
Camelina 150-400 Gallons Per Acre Per Year
400-700 Gallons Per Acre Per Year
Algae 2,000 to 20,000+ ?? Gallons Per Acre Per Year
Uniqueness of algae fuels
Higher oil yield
food vs. fuel
Range of products
WWT & CO2
Lesser land requirement
Algae is capable of producing 30 times more oil
per acre than the current crops now utilized for
the production of biofuels.
Algae could produce up to 94,000 liters of oil per
acre, shrinking land requirements
Adaptability to a range of
Grown under conditions which are unsuitable for
conventional crop production
(marine water, wastewater, open ponds)
Solve the food versus fuel problem
Does not compete directly with crops grown for food
Algae can make use of marine and waster water
Some algae can be grown in desert regions
Some algae can be grown in ocean environment
Does not require expensive nutrients for growing
A wide range of fuel products
Integrated with CO2 capture
Additional Algae Oil Benefits:
Can be Grown anywhere
Releases Oxygen (can be captured and sold)
Eats CO2 (a potentially valuable GHG offset)
After the Oil is extracted the remaining presscake
(BioMass) is a highly valuable product
How Does Algae Produce Oil?
Algae is a single cell organism
Algae feeds on the Hydrogen from the H2O and the Carbon
from the CO2 and through the process of photosynthesis
produces Hydrocarbon Chains and releases Oxygen
Most strains of the Green and Green-Blue Algae can double
their mass every 24hour growing cycle
Different strains of Algae produce Algae Oil with slightly
different hydrocarbon chains
How to obtain fuel from algae?
Picking up the best algae
Growing the algae
Generating the fuel product
Choosing an Algae
characteristics of Algae
High % of total biomass is
Maintains a high % of oil
even under stress
Compatible with our
Where To Grow It
Extensions onto our water treatment plants
Clean up our waste and generate fuel
Exploit the county’s many farms and vineyards
Algae could well grow on salty water as well as soft water
How Is Algae Grown?
There are 3 methodologies that are currently being used to grow Algae
– with a wide number of variations!
Light Pulse Systems
Open Raceway Ponds
2nd vertical systems (Vertigrow’s, Hanging Bags)
3rd Closed systems(photo
Also referred as
Flat plate PBR
Bioreactors provide fast growth of algae
with the high contents of oil.
Considerably reduces expenditures of labor &
eliminates complexities in service.
The system can work during long periods
without destruction of culture.
Light in a reactor is taken as much as it
considerably increases its productivity.
Reactors represent closed, controlled,
The technological circuit of installation of a bioreactor
There are three well-known methods
to extract the oil from oilseeds, and
these methods should apply equally
well for algae too:
2. Hexane solvent oil extraction
3. Supercritical Fluid extraction
1.Pressing oil from the algae
Dry the algae and press the oil from it.
Can retrieve up to 70% of the oil.
While drying must prevent the algae
from becoming contaminated.
Cheapest and simplest method
2.Chemical Oil Extraction
Use hexane solvents to remove the oil.
Benzene could also be used.
Must be careful when using.
Removes oil out of almost all things.
About 95% of total oil present in algae
could be extracted.
3.Super Critical Oil Extraction
Most efficient method.
Equipment need special containment and
Can extract almost 100% oil by itself.
Uses carbon dioxide at critical pressure
and temperature (CO2 is almost a liquid).
Rapid diffusion of the oil.
Product generation via different
Electricity – where algae biomass is directly used
Other hydrocarbon fuel, such as JP-8 fuel,
gasoline, biobutanol etc.
Biodiesel from algae
Cultivation of Microalgae species
Harvesting of Microalgae
Extraction of Oil from Microalgae
Ethanol from algae
Hydrogen(H2) from algae
Methane from algae
Even with few challenges taken into consideration, algae
biofuel ’s natural advantages look to make it one of the
foremost players in the clean energy market
Algae biofuel production holds future promise for developing
• More jobs
• Energy independence
Cost of the pilot project
Aprox 20,000 to 25,000 in pakistani rupees.
Algae cultivation requirements
Algae drying method
Algae oil extraction