I just dropped the price of
the permaculture playing cards
for a wee bit.

 

 

uses include:
- infecting brains with permaculture
- convincing folks that you are not crazy
- gift giving obligations
- stocking stuffer
- gambling distraction
- an hour or two of reading
- find the needle
- find the 26 hidden names

clickity-click-click

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Biodiesel acid pre-treatment  RSS feed

 
Daniel Zimmermann
Posts: 122
Location: Sacramento
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I'm in a biodiesel class and the subject of acid pre-treating high-FFA oil with H2SO4 has come up.  However, neither the instructors nor any students know the why it works.  Can someone explain  the what and why to me?
 
Happiness is not a goal ... it's a by-product of a life well lived - Eleanor Roosevelt. Tiny ad:
Rocket mass heaters in greenhouses can be tricky - these plans make them easy: Wet Tolerant Rocket Mass Heater in a Greenhouse Plans
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