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Using other combustibles in gasifier.  RSS feed

 
Sean Henry
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Location: Louisville, KY Zone 7
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Can other combustibles be used in a gasifier? I do not mean paper and other similar items but could fats/oils be used in the chamber like wood?

I figure that wood would need to be used along with other materials but if some wood chips were soaked in used cooking oil or something similar. I ask because I want to build a gasifier in the future but would still need to have a way to dispose of oil from processing. I don't think that I will have enough to make it worth my time to convert it to bio-diesel.
 
Mat Smith
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What about a Waste Vege Oil burner?
If you google it (or google "WVO burner") you'll find many examples.
 
Mat Smith
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If you can make WVO burners this easily, I'm sure you could modify them as gasifiers:

 
Sean Henry
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If I were to have that much WVO I would turn it into Bio-Diesel and use that to run a motor and not take the extra step of building a gasifier. Building a burner like that would be more of the bottom half of a gasifier.
 
Mat Smith
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I guess if you can make a gasifier using woodchips, and you can make simple WVO burners, then a combination of both ie oil soaked woodchips should work fine.

I think the issue you may have to work on would be getting the fuel to air mixture correct as I assume the oil would need more heat and oxygen.
Maybe with a batch system you could start it with a layer of straight woodchips, then oil soaked woodchips after that?
 
Ben Peterson
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Matt:

You could use some waste oil of any type, but definitely soak the chips and layer them in the middle of the hopper. If you try to dump oil in directly it may trickle down and foul your char bed, making it hard to start. Cool photo!
 
Mat Smith
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Thanks for the reply Ben, good to know I was on the right track.
And yes I agree, some of the photos and videos of the WVO burners are really cool!
 
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