
Biodiesel production using Co2 from steel factory 29
We study the potential of biodiesel production from outlet Co2 (3000 million kg Co2/year as co2 resource) and their lake (6000 m2 and 270 million m3) for algae cultivation.
I would be appreciated if you let me know about the following question:
1- At present cladophora and spirogyra are the most abundant species in the lake. Is it possible that we change this fore using new species that can be used for biodiesel production such as Dunaliella or Chlorella sp.
2- Do you have any idea for biodiesel production in this scale (3000 million kg Co2/year) or do you know any country or any company that involved with the same project.




Alan talks of much higher CO2 sources.
Alan Schaefer is the best person to answer your query.
That is a lot of CO2!!!!
Lets run some numbers on this opportunity and see what the potential is
for the future.
We will break the yearly output of CO2 down to one day output of CO2.
1 million KG X 2.2046 lb. / KG = 2,204,600 lbs of CO2
2,204,600 lbs of CO2 ./. 2.8 lbs CO2 per 1 lb of dry algae produced = 787,357 lbs. dry algae per 1 millon KG of Co2.
((( 2.8 is a bit liberal for converting CO2 to algae. Probably ~ 1.8 to 2lbs would be closer to reality. 2.8 leaves about 25% slack in the rope for covering 'other' things.)))
3,000 million KG of CO2 per year is produced at this facility.
3,000 ./. by 365 days per year = 8.219 million KG of CO2 per day.
8.219 X 787,357 lbs dry algae per million KG CO2 = 6,471,287 lbs dry algae per day
(We assume the dry algae will be ~ 50/50 oil and dry meal. You can play with the figures to make it 40/60 etc.)
6,471,287 lbs. dry algae per day ./. by 50% = 3,235,643 # oil and 3,235,643# dry algae meal.
So, in gross returns, no expenses ( labor, fertillizer, depreciation, etc.) subtracted, what is this large amount of CO2 worth per DAY.
3,235,643 lbs. oil per day ./. 7.5 lbs. per gallon = 431,419 gallons of oil per day. ./. 42 gallons per barrel = 10,271 barrels of oil per day X $90.00 per barrel == $924,469.00.
3,235,643 lbs. of dry meal per day ./. 2,000 lbs per ton = 1,617.8 tons of meal X $300 per ton == $485,340.00
GROSS RETURNS: $485,340.00 $924,469.00 = $1,409,680.00 per day GROSS
Alan
You have become popular for math and pbr :-)
Mia,
Anybody with a ten digit calculator can do the same thing.
Wouldn't it be interesting to use this massive amount of CO2 per day and apply the math I used in the post comparing a modern PBR with the raceway/ditch systems?
Alan Schaefer