Comments on: Let’s stop obsessing about corn

By: Anonymous

Anonymous — Wed, 21 Feb 2007 17:21:59 +0000

I don’t think I’m alone in this belief: battery technology will reach such a level in 1-3 years that it will make burning biomass for electricity used in transportation more efficient than turning biomass into liquid fuels for vehicles.

Stephen

By: Anonymous

Anonymous — Wed, 21 Feb 2007 17:07:24 +0000

Hello Tyler,

I recently published two blog enteries on corn-ethanol and the ethanol industry in general on my site:

THE GREEN CHEMISTRY TECHNICAL BLOG

15 February 2007

From “Abandon the use of Ethanol” to “a Re-evaluation of the possiblities of the Ethanol Industry”

16 February 2007

Follow-up on Ethanol Re-evaluation and Consolidation in the Industry during 2007?

I came to the same conclusion as you, although with much more discussion – on Ethanol and biofuels in general, and their progression.

I suggest that interested readers take a look.

And maybe link back to my site

THE GREEN CHEMISTRY TECHNICAL BLOG

Best wishes,

Mark

By: Anonymous

Anonymous — Wed, 21 Feb 2007 13:46:23 +0000

Interesting. Could you supply us with more of your visionary perspectives.

I for one would be delighted to see where applying the categorical imperative would lead us to in your perspective.

By: Anonymous

Anonymous — Wed, 21 Feb 2007 13:19:09 +0000

I Remember they said we would be out of oil by 2000

Truth is, we have more oil today then ever. We found more and more and better ways to get it out of the ground, factories are more efficient cars etc.(the model was wrong and still is)

In the next 200 years when we finally run out of oil, you’ll fuel your “hover car with plutonium.”

By: Anonymous

Anonymous — Wed, 21 Feb 2007 12:28:26 +0000

Talking about efficiency: Zap, Mini, Whisper

In these vehicles you can use any appropriate fuel in an ICE, FC or steamengine (since this engine is only used to charge the batteries). Make it modular, and you can change your mind half way.

Or better still: make it plug in with a charge of RES. This makes the case for more RES stronger, due to load balancing capacity of all those vehicles with their batteries connected to the grid (and earn the car owners some money for services rendered)

I’d prefer methanol, since that can sustainably be made from cellulose now, and not at some future date when prices have come down and poor people have been deprived more due to our habits.

Mobile bio methanol plants could be exported to regions where poor people can be in charge of a piece of forest. This anables them to take care of this area and feed residues into these machines in a way that keeps the forest healthy and earns them money for their development.

No rocket science; feasable with the right focus.

By: Anonymous

Anonymous — Wed, 21 Feb 2007 12:05:18 +0000

It’s worse: http://en.wikipedia.org/wiki/Confessions_of_an_Economic_Hit_Man

By: Anonymous

Anonymous — Wed, 21 Feb 2007 11:13:21 +0000

I agree that improvements are forthcoming, but I think the issues with ethanol are such that they will “squeeze” its effectiveness as a fuel…ultimately other sources of energy will prove better.
If transportation is the main market for ethanol, I’d like to see massive improvements in the efficiency of our road network as well as public transit. Greater efficiency there means that a larger proportion of our transportation energy can be supplied as electricity, so that most people will never need to even touch an ethanol pump. Only then, I think, could we justify turning substantial amounts of our wasteland (ie. wilderness) into a genetically-engineered fuel factory.

By: Anonymous

Anonymous — Wed, 21 Feb 2007 02:26:08 +0000

The best reason I can think of to move away from corn based ethanol is due to the fact that tortilla prices have doubled in Mexico and Central America. The majority of these people live in poverty and corn tortillas are the staple food of their diet.

This is already leading to political instability in Mexico where their President, Felipe Calder

By: Anonymous

Anonymous — Wed, 21 Feb 2007 00:50:12 +0000

We’re including the quality of the resultant fuel in our equations?

Heating is one result we may require from fuel, but transportation is I think what the ethanol reach is about.

By: Anonymous

Anonymous — Tue, 20 Feb 2007 18:31:58 +0000

I would agree with you that we should not jump all over new ideas before they have had time to mature. However, the fact is that there are much better ways to convert biomass to energy other then liquid fuels like ethanol.

Anytime you convert a solid feedstock to a liquid fuel it used a very significant amount of energy in conversion. Ethanol, whether from grain corn or switchgrass, will always be very energy intensive, regardless of the gains that are made.

As a comparison turning agricultural residues and/or switchgrass into a densified pellet that can be used for residential, commercial or agricultural heating applications has a much better Energy Return On Investment (EROI).

For example switchgrass pellets have a return of 14:1 compared to 1:2 at best for ethanol. Even with significant innovation we will not be able to reach anywhere near the same EROI that is currently available through a very simple process. So lets use our resources as efficiently as possible.