Author Topic: woodgas  (Read 1376 times)

0 Members and 1 Guest are viewing this topic.

Robbie T

  • Newbie
  • *
  • Posts: 1
woodgas
« on: September 10, 2005, 10:06:06 AM »
A South African farmer years ago wrote a book about biogas from pig manure. He stored in in a tractor tyre. Before he stored it, though, he filtered it through lime water (to remove CO2) and steel wool (to remove any sulphide, which probably wouldn't be a problem at the high gasification temperatures).

THe gas would certainly also need to be very cool before you introduced it to the tyre. Bubbling through a lime water bath would help that, but might well not be nearly enough, you'd need to check.

You would need to evacuate all air from the tube first, and it'd probably be a good idea to 'purge' the tube with nitrogen (or similar inert gas - in the offshore oil and gas industry and on crude oil tankers, they sometimes use the engine exhaust gas for this purpose - and here's me saying you need to filter out the CO2!) first.

Your gas will be VERY EXPLOSIVE INDEED, regardless of the apparently casual judgement inherent in some of the previous comment.

Then you might need to fit some sort of pressure regulation at the end-use outlet from the tyre. Atmospheric pressure might not be enough to drive the gas through your user system. Placing some sort of weight on the tyre might be enough. For short bursts, you could even sit on it.

Best wishes from Aberdeenshire.
« Last Edit: September 10, 2005, 10:06:06 AM by (unknown) »