Thirty some years ago Mother Earth News had an article about somebody running his pickup on wood. That was OK, but I had other things to do. Now that I've got 100 acres of woods and gas is over $4.00/gal, I'm taking another look.
Producer gas is made by incomplete combustion of cellulose or other carbon-rich material, including coal. The hot carbon can have hot steam introduced to make CO and hydrogen, which can then be burned in an engine. The challenges:
1. Efficiency - if you use air, most of the resultant gas is still nitrogen, and doesn't burn.
2. It's toxic - carbon monoxide is a killer. The system must be well sealed.
3. It's a pain - but tinkers will figure that one out
4. Steam - how do we produce it, how can we introduce it into the hot carbon, and how do we regulate it.
Producer gas was used extensively before and during World War II, and in some places after. The technology works, we just have to find what our fathers and grandfathers knew.
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