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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Clarence Richey, Purdue and Robert Stwalley , Stwalley & Stwalley, developed the downdraft channel gasifier for corncobs in the 1980s through the mid 1990s. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Robert Stwalley is a professor at Purdue.<o:p></o:p></p><p class=MsoNormal><a href="https://engineering.purdue.edu/ABE/People/ptProfile?resource_id=7402">https://engineering.purdue.edu/ABE/People/ptProfile?resource_id=7402</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><a href="http://patents.justia.com/patent/4452611">http://patents.justia.com/patent/4452611</a><o:p></o:p></p><p class=MsoNormal><a href="http://www.nrbp.org/papers/052.pdf">http://www.nrbp.org/papers/052.pdf</a><o:p></o:p></p><p class=MsoNormal><a href="http://www.docstoc.com/docs/108067206/GASIFIER-PISTON-ENGINE-DECOUPLING">http://www.docstoc.com/docs/108067206/GASIFIER-PISTON-ENGINE-DECOUPLING</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Pictures of the gasifier in:<o:p></o:p></p><p class=MsoNormal><a href="http://www.midwestchptap.org/Archive/pdfs/061211JasperIN/Stwalley.pdf">http://www.midwestchptap.org/Archive/pdfs/061211JasperIN/Stwalley.pdf</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Tom Miles<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>