<DrumBeat: October 30, 2008 The Oil Drum DrumBeat: October 31, 2008>

122 comments on Cutting Through the Coskata Cellulosic Ethanol Hype

Comments can no longer be added to this story.

| Show without comments | PDF version

Robert Rapier on October 30, 2008 - 8:57pm Permalink | Subthread | Parent | Comments top

That said, Robert's Douglas fir analogy, albeit effective, is misleading.

It is simply designed to give someone a feel for the amount of biomass required. If I said "a million hemp plants" that would have been completely meaningless to most people.

...a plant that maintains a higher biomass/btu ratio, higher biomass/acre ratio...

Numbers?

Comments can no longer be added to this story.
El on October 31, 2008 - 3:04pm Permalink | Subthread | Parent | Comments top

Fair enough.

My btu assertion is based on your ballpark usage of 12.5MMbtu/ton as opposed to the 15-17MMbtu/ton that a DEC would support.

And as for the latter assertion. You're looking at 10-30tons/acre for Douglas fir vs. 10-15tons/acre for a DEC.

But you and I both know that while the DEC acreage can be harvested annually, the same cannot be said for a stand of Douglas fir.

Comments can no longer be added to this story.

122 comments on Cutting Through the Coskata Cellulosic Ethanol Hype

Comments can no longer be added to this story.

| Show without comments | PDF version