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Monday Math.....Gross revenues from 25,000 SCFM 7

Dear FOA (Friends Of Algae)

Here is a contest for the week of May 17. Using the numbers I gave you a week ago in "Algae Math and More Conversions" let's figure out what the GROSS Returns
would be for a CO2 emitter of 25,000 SCFM.

Here are some assumptions:

This medium size CO2 emitter will discharge 25,000 scfm.

We will be working with a very rapidly growing GM algae.

This algae will be harvested at 50% oil and 50% meal.

This algae will produce 30 grams of dry matter every 24 hours per liter capacity of the bioreactor.

The oil will sell for $80 per barrel. The meal will
sell for $300 per ton. (1 ton = 2,000 lbs.)

Ansewer these questions:

1. How big (in gallons) does the bioreactor(s) have to
be to convert this amount of CO2 to biomass?
2. What is the production of algae (dry weight is assumed when we talk about algae, i.e. "30 grams per liter capicity") Give your answer in lbs. per minute.
Tons (1 ton = 2,000 lbs.) per minute, tons per day and tons per year.
3. Give your answer in $ per minute, $ per hour and $ per year. Remember these are GROSS dollars, we have NOT figured out what the production costs will be.....yet.
Remember to use the formulas in the previous posts.

Good Luck. Lets have some answers by Wed. or Thurs.

Alan Schaefer and Annie (my Boarder Collie Puppy)
Mon May 17 2010 11:01:01 AM by SAMDevelopment algae  |  math 1756 views

Comments - 4

  • RaviPrasad wrote:
    Mon May 17 2010 03:38:40 PM

    Sir i love this kind of numerical problem, thank you for sach a good question. I will try my level best to slove it. Sir ,what is the full form of SCFM?

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  • Tue May 18 2010 02:45:21 AM


    Good to hear from you.
    SCFM, This means "Standard Cubic Feet per Minute"

    This is a standard way to measure a gas. "Standard" in pressure, Temperature etc.


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  • Manohar wrote:
    Thu May 20 2010 07:26:59 AM

    1 gal CO2 = 74.04 SCF OOOO
    25000 divided by 75 = gallons

    The above answer should be the size of the bioreactor in gallons ! Right ?

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  • Manohar wrote:
    Thu May 20 2010 07:32:58 AM

    337.6 gallons let us say 350 gallons or better still 400 gallons should be the capacity of the pbr.

    If my answer is wrong, dont give me so many 0000 s as in your table. One will do :-)

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