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Are Biofuels Ready for a Comeback?

By Stephen Lacey, Staff Writer
September 23, 2009   |   14 Comments

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14 Reader Comments
Comment
1 of 14
September 23, 2009
Sims says that "Joule will be able to produce 20,000 gallons of ethanol and 13,000 gallons of biodiesel on one acre of land per year."

It sounds like another closed bioreactor system with a twist: remarkable new beasties who secrete "solar fuels." I'm a bit confused about the sunlight being "pumped in." Is natural sunlight not used?

Being a closed system, I have to assume it is subject to the same scaling (i.e., laboratory to commercial) constraints as previous efforts. GreenFuel Technologies comes to mind. But at least they do not claim outrageous yields. 13,000 gallons of biodiesel/acre seems reasonable, IF the system can be successfully scaled to a commercial size. I look forward to hearing more about this company.

-JWB
www.bebout-and-associates.com
Comment
2 of 14
September 24, 2009
Where did Mr. RIva say the CO2 inputs would be coming from?
Comment
3 of 14
September 24, 2009
Good question. They will be coming from power plants. Many people question the "renewable-ness" of the fuel if it's coming from fossil-fueled plants. But I asked one of our writers, Chris Tachibana, that exact question. She pointed me to some reports on the feasibility of using wastewater to grow biomass, which could then be burned for heat and electricity. The CO2 emitted would be used for algae growth (or similar organisms like Joule's).

Sheehan et al. (1998) A Look Back at the U.S. Department of Energy's
Aquatic Species Program: Biodiesel from Algae, NREL/TP-580-24190
http://www.nrel.gov/biomass/pdfs/24190.pdfhttp://www.nrel.gov/biomass/pdfs/24190.pdf

Benemann, J.R.; Koopman, B.L.; Baker, D.; Goebel, R.; Oswald, W.J. (1977) "Preliminary design of the algae pond subsystem of the photosynthesis energy factory." Final Report to Inter-Technology Solar Corp., Sanitary Eng. Res. Lab., Univ. of Calif.-Berkeley.
Comment
4 of 14
September 25, 2009
and what is the chance that this little beasty could survive / multiply in the wild from the almost 100% chance they will be released either by chance, accident or terrorist attack on a plant?
Comment
5 of 14
September 25, 2009
Hi Bama,
I wouldn't really call these things beasts. They're probably organisms like e.coli, which we find all over. But I really can't answer that question, seeing how little we know about Joule's process!
No image available
Comment
6 of 14
Anonymous
September 25, 2009
Are they genetically engineered?

I once toyed with making fuels from green waste--Locally we have over 500,000 tons of it burned or landfilled every year.

Then I visited COLD RIVER VODKA and realized how dumb it was to convert bio waste to a fuel which would have to compete with oil; when I could make Vodka which could sell for over $30/bottle.

Bio-refineries that use fermentation are centuries old; but why bother when you can 'burn' old beer, cheaper than you can make it fresh?
Comment
7 of 14
September 25, 2009
Regarding Joule
Come on Stephen. Some skepticism is called for.
"This is where a lot of the magic happens,"
Magic indeed is likely will be required to make 13,000-20,000 gallons per year per acre of whatever we want - ethanol or biodiesel in a PBR.
The creature can produce either of these two products?
These volume claims are unsubstantiated, best-theoretical back of the envelope assumptions and irresponsible for the CEO to state and should not be repeated without a bit of perspective.
Somebody might crack a genetic pathway to produce a biofuel in volume - probably not Joule.
Comment
8 of 14
September 25, 2009
Eric -- you're right that skepticism is called for. I fully agree. But with no independent verification of their fuel or PBR, we don't have much to evaluate on their end.

I felt that 13,000-20,000 gallon number was appropriate. That's the number they're incessantly quoting, so we should use it to have a benchmark to evaluate their success in the coming years.

I don't know that we can say at this point whether Joule has or hasn't cracked the genetic code....
Comment
9 of 14
September 26, 2009
Sounds familiar. I have nothing against investors gambling with their money:

http://i-r-squared.blogspot.com/2009/08/disruptive-technologies-are-so.html

http://i-r-squared.blogspot.com/2009/07/cello-lesson-in-due-diligence.html

As for Verenium:

http://i-r-squared.blogspot.com/2009/03/aventine-verenium-on-ropes.html

They are just one of dozens of companies trying to economically unlock sugars from cellulose so they can be fermented into alcohol. BP has jumped in to save them, which lends evidence to my contention that all biofuel production will eventually be controlled by the oil companies, the same ones that biofuel enthusiasts rail against. From Verenium's website:

"..Working to produce cellulosic ethanol from items such as sugarcane bagasse, agricultural waste, and wood products.."

And the third company (Poet), the one producing 99% of the ethanol between the three, makes ethanol out of food.
Comment
10 of 14
September 27, 2009
Steve L--------"Hi Bama,
I wouldn't really call these things beasts. They're probably organisms like e.coli, which we find all over. But I really can't answer that question, seeing how little we know about Joule's process!"---------------


I remember seeing news releases before(maybe 6 months to a year ago) about scientists having success in creating a genetically modified E. coli that secretes "diesel fuel".

E. coli is a normal intestinal flora of humans. It is present in everyone's gut(and many other mammals also). Its presence is considered the definative test for untreated sewage. In large enough numbers, it can cause severe morbidity or mortality in the wrong places. There have been a number of deaths in the news due to E. coli contamination of food----hamburgers, lettuce and spinach are three instances that come to mind.

Knowing this----I had to wonder what their definition of "diesel fuel" is. Diesel fuel can be pure plant lipids. The first diesel engine ran on pure peanut oil. We eat foods made with and cooked with plant lipid "diesel fuel" everyday. If this is the case, I don't think that if they got released into the environment that there would be any problem. At least not any more that getting E. coli where we don't want them, which is no different than what we have right now. Any secretions would be quickly decomposed by other bacteria.

If however, their definition of "diesel fuel" is something that is chemically the same or similar to petroleum diesel fuel----THEN we'd have a huge problem. I wouldn't want a genetically modified E. coli that secretes petroleum to take up residence in my intestinal tract.
Comment
11 of 14
September 27, 2009
from the article-----------"The converter looks kind of like a solar-photovoltaic panel, but instead of generating electricity, it generates liquid fuel. Joule's engineered organisms live inside the panel, which is filled with recycled non-potable water. CO2 and sunlight are pumped in, the organisms start photosynthesizing and then secrete usable fuel products."-----------------

This would not be E. coli. Only green plants with chlorophyll can carry out photosynthesis---take carbon dioxide from the atmosphere, combine it with water in the presence of light and create sugars. It would have to be algaes.

----------"StephenLacey September 25, 2009
Eric -- you're right that skepticism is called for. I fully agree. But with no independent verification of their fuel or PBR, we don't have much to evaluate on their end."-------------

I think so too.
Comment
12 of 14
September 28, 2009
Fred -- your first comment made me laugh out loud. No, I don't think I'd want some mutant strain of e.coli making diesel fuel in my intestines either.

The company is adamant in saying that the bacteria are not algae. With the right genetic modifications, I think it is possible to engineer e.coli to turn CO2 and sunlight into usable energy. If I remember correctly, there was some research done in 2006 on putting the RuBisCO gene inside e.coli, which essentially allowed it to produce energy from CO2.
No image available
Comment
13 of 14
Anonymous
September 28, 2009
You cannot "produce energy from CO2". And puttig RuBisCO into E. coli is not the same as engineering e. coli 'to turn CO2 and sunlight into useable energy". Rubisco is the least of your problems if you want to engineer a non-photosynthetic organisms to be photosynthetic. And why would anyone bother, anyway, except for the coolness factor? There are already tons of photosynthetic bacteria and eukaryotes (algae and plants) to work with, and some cyanobacteria are about as tractable experimentally as E. coli.,
Comment
14 of 14
October 1, 2009
Joule says people should be skeptical, then they still pour on the unproven hype with words like magic. Two years and they are ready for a breakthrough. We've heard all this before with cold fusion, clean coal, electric cars, hydrogen, cellulose, algae etc. Policy should not be formulated from hype. It can discourage investment in other techs. This country should just open markets for all technologies so we don't need to hear this hype until they are ready to really commercialize something.
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