[Gasification] Gasification of Corn cob

[Kevin]

Dear Tom

I would agree with you that a Top Lit Updraft Gasifier, operated in a batch mode would be great for producing "Heating Grade Gas" (HGG), when there was a desire to also produce charcoal.  However, if Masi was interested in maximum use of the corncobs for producing HGG, then a "top lit gasifier system" would not appear to be the best approach, because the charcoal left over would be undesirable. Additionally, there is the problem of a "batch operation."

If Masi wanted a gasifier system to produce a woodgas suitable for powering an Internal Combustion engine, I cannot see how the Top Lit Gasifier could possibly produce an Engine Grade Gas. (EGG) I would suggest that it would have excessive tar, that would make it useless for fuelling an IC Engine. Additionally, there is the inherent problem of the batch nature of the TLUD gasifier.

As I see it:
1: The TLUD gasifier is great for use with a close coupled burner system, where there is a wish to produce a residual charcoal, and where batch operation is acceptable.
2: A TLUD gasifier is not appropriate for producing Engine Grade Gas, because of an unacceptably high tar content. 
3: A TLUD gasifier is not appropriate unless it is desired to produce a charcoal by-product.

I might be missing something, but do you know of any way that a TLUD can produce engine Grade Gas?

Best wishes,

Kevin

----- Original Message ----- 
From: "Thomas Reed" <tombreed2010 at gmail.com>
To: "Discussion of biomass pyrolysis and gasification" <gasification at lists.bioenergylists.org>
Sent: Wednesday, October 10, 2012 10:19 AM
Subject: Re: [Gasification] Gasification of Corn cob


> Dear Masi
> 
> I have never run a gasifier on corn cobs, but I believe they would be an excellent fuel as long as the moisture content is <15%. Be sure to operate lighting the TOP of the pile so that the char sits above the unburned fuel.  
> 
> Write me -send a picture- if you can.
> 
> Yours truly,
> 
> Tom Reed
> 
> Thomas B Reed 
> 
> 
> On Oct 10, 2012, at 5:02 AM, masi karuppu <masikaruppu at gmail.com> wrote:
> 
>> Dear Sir,
>> 
>> I would like to know about the operating performance of a gasifier
>> which works on Corn cob as fuel input.
>> 
>> Thanks and regards
>> K.Subramaniam
>> 
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