[Gasification] Corn Cob Gasifiers

Mark Elliott Ludlow mark at ludlow.com
Mon Feb 23 00:53:38 CST 2015


Tom,

Why isn't "source sorting" feasible, given that a shortage of cadavers may
justify modifications to corn pickers? Was the spreading of cobs a benign
impulse or done for lack of anything better or more creative to do?

Mark

 

From: Gasification [mailto:gasification-bounces at lists.bioenergylists.org] On
Behalf Of Tom Miles
Sent: Saturday, February 21, 2015 9:18 PM
To: 'Discussion of biomass pyrolysis and gasification'
Subject: [Gasification] Corn Cob Gasifiers

 

Clarence Richey, Purdue and Robert Stwalley , Stwalley & Stwalley, developed
the downdraft channel gasifier for corncobs in the 1980s through the mid
1990s. 

 

Robert Stwalley is a professor at Purdue.

https://engineering.purdue.edu/ABE/People/ptProfile?resource_id=7402

 

http://patents.justia.com/patent/4452611

http://www.nrbp.org/papers/052.pdf

http://www.docstoc.com/docs/108067206/GASIFIER-PISTON-ENGINE-DECOUPLING

 

Pictures of the gasifier in:

http://www.midwestchptap.org/Archive/pdfs/061211JasperIN/Stwalley.pdf

 

At that time cobs were used for many purposes. We still have the Anderson
Cob Products manual on the uses for cobs from about 1980 (400 pp).My
favorite use for cobs was for stuffing cadavers. 

 

Now cobs are scattered on the field. There is no specialized equipment for
collecting and separating the cobs for use in conversion to liquid fuels.
After considerable field testing those projects (Poet, Abengoa) have shifted
to the stover or straw as a principle feedstock. The cob yield per acre is
very low which makes it expensive to collect or separate. 

 

Tom Miles

 

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