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« CERA: Global Oil Capacity Will Continue to Grow | Main | Xethanol Corporation »

August 14, 2006

Comments

Rich Wilson

The algae into ethenol process requires CO2.
Why can't we use at least some of this CO2 for this purpose?

amazingdrx

"Save trillions" by continuing the wars over increasingly scarce oil? That's pretty risky.

I think saving 100s of trillions by heading off both oil war and global climate disaster is a better idea.

Use conservation reserve land, which now stores 15 to 30% of TOTAL US CO 2 emmissions(this study conveniently leaves out emmissions from vehicles) and areas like a proposed, Prairie National Park, and restored wetlands and coral reefs to naturally trap CO 2 out of the atmosphere.

By increasing this effect only a few times, coupled with a move away from oil and fossil fuel combustion towards electric vehicles and renwable energy, wind, wave, and solar; global climate disaster could be reversed in a decade or two.

The facts will back that up.

eric blair

Why not lo-tech?

Why not generate 'wood gas' with annual crop matter and place the resulting carbon matter back on the cropland?

http://www.garlington.biz/Ray/WoodGasStove/
http://journeytoforever.org/at_woodfire.html
(Small units, each farm could have one, the missing part is a stirling engine, thus the heat to motion to electrical power doesn't need the scrubber)

Then about the soil itself.
http://lba.cptec.inpe.br/Presentations/Manaus2002/ChristophSteiner-Manaus2001.pdf

Robert J. Griisser

I'm wondering if the sequestration of CO2 will become the nuclear waste problem of our grandchildren.

Brian Crounse

I studied ocean sequestration of CO2 in grad school. Overall, I have a lot of concerns about it.

Under-ocean, though surely more expensive, seems a lot safer. Of course, humans are experts at creating situations with unintended consequences, so I'm not too excited yet. I do like the fact that it would give the oil drilling people something to work on. The engineering of deep-ocean oil drilling is pretty amazing, so it would be nice if this know-how could be used to send carbon the other way (aside from EOR).

It's worth remembering when talking about CO2 sequestration that humans *are* going to continue to burn a lot of fossil fuels. Even assuming very, very aggressive growth of low-carbon technologies, we are still going to burn a lot more oil and a lot more coal in the coming years. A lot. So, if you accept that this is a problem, sequestration pretty much has to be considered as one countermeasure. Even if you stick a GreenFuel plant on every power plant.

It's also worth remembering that even if the impact of CO2 on the climate isn't a big deal, we are acidifying our oceans (atmospheric CO2 => dissolved H2CO3 => H+ + HCO3-), and that might just be a problem in its own right.

Great blog.

Paul Dietz

The algae into ethenol process requires CO2.
Why can't we use at least some of this CO2 for this purpose?

Because when the algae is then converted to fuel, and the fuel burned, the CO2 ends up in the atmosphere. This isn't sequestration at all.

(If you intend to burn the algae in stationary plants and then sequester the CO2, you discover it can't possibly compete with coal.)

Gordon Garrett

Dont know how to contact you I am researching sustainable energy

Gordon Garrett

The information posted will be of benefit to my research. Would like to discuss further

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