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Biodiesel production

Yusuf Ojoola
RedR
related country: Saint Helena, Ascension and Tristan da Cunha
KnowledgePointAdmin
RedR CCDRR
related country: Saint Helena, Ascension and Tristan da Cunha

Am in search of ideas in the area of mini or small scale production of bio diesel from saw dust?

Any tips?


4 Answers

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From Joel Chaney - Creativenergie

You can make methanol from sawdust (e.g. see https://journeytoforever.org/biofuel_l...), which is then a key ingredient in biodiesel. You would also need oil and lye (NaOH). So theoretically this could be done!

You normally make biodiesel from methanol, which you can direcly make from sawdust. However, it also possible to do with ethanol. Have a read of this to get a general idea: https://www.biodieselmagazine.com/arti...

It is also possible to pyrolysis the sawdust giving you char, pyrolysis gas and bio oil, all of which can be upgraded (e.g. the pyrolysis gas can by synthesised to produce ammonia or methanol). The pyrolysis process could be done on a small scale (I've had a go at building), but the upgrading processes are complex on a small scale. That is not to say they are impossible, but it would need a lot of thought and work to do!

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Neil Noble
Energy

From Gray Maguire - Project 90x2030

I can suggest talking to these guys who I know do this (https://www.bnlce.com/). It is obviously meant to be done at scale though.

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Neil Noble
Energy

From: Rosina Norton - lightyearfoundation

I'm not an expert of gasifier cook stoves myself but Id like to put you in contact with Alfred from Kenya who is manufacturing small gasifiers using rice and coffee husks although I'm sure that it would also work with sawdust.

His email is : alfred[at]caffedelduca.com

I saw the stoves in action and they really are quite impressive!

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Yusuf Ojoola
RedR

Thanks Neil for the inputs i will readand then contact