Pyrolysis: Wood or Biomass Gasification for Energy Independence

017 Best Shotgun, Rifle, Handgun, Carbine for Beginners, Women, Men
017 Best Shotgun, Rifle, Handgun, Carbine for Beginners, Women, Men
January 31, 2014
How to Use Colt Survival and Combat Knife, Survive in Wild
How to Use Colt Survival and Combat Knife, Survive in Wild
February 5, 2014
Pyrolysis: Wood or Biomass Gasification for Energy Independence: Wood Gassifier on Truck

Pyrolysis: Wood or Biomass Gasification for Energy Independence: Wood Gassifier on Truck

Pyrolysis: Wood or Biomass Gasification for Energy Independence: Wood Gassifier on Truck

Pyrolysis: Wood or Biomass Gasification for Energy Independence: Wood Gassifier on Truck

My main focus is wood gasification, but almost all of what I am including may be used for all biomass gasification. I know that many people want to know what the process of wood or biomass pyrolysis is as well. I will cover this as well as the other three processes in gasifiers. I also want you guys to understand that this process can help us with our energy independence.

Gasification is used to convert any carbon-based materials into Combustible Gasses (CO-carbon monoxide and H2-Hydrogen) by using a chemical reaction between the solid carbon fuel and a controlled amount of oxygen at high temperatures.

This is the ultimate Sunshine to energy process. We start with Sun and Carbon Dioxide which is where our Trees and Other biomass will come from. Then that is used as fuel to create heat and gas fuel, which can also be used for heat and combustion.

Advantages or Pros of Wood and Biomass Gasification:

  • Anywhere you would cook over a wood fire, you can use a gasifier stove which is much higher efficiency. You get much more energy out of the same amount of fuel.
  • You also cut down on the issues with smoke inhalation, like lung diseases. Nearly Half of the world’s wood supply is utilized as fuel.
  • Gasification can be used to create fuel in the form of wood gas that will run automobiles with carburetors.
  • It can be used for heating
  • Use for lighting

Wood is fully renewable, so the sustainability is much higher than commercially available products. You can easily build a gasifier, but it takes lots of petroleum products to make solar cells. So… even those panels aren’t true sustainable energy.

What makes a source sustainable?

  1. Not significantly depleted by continued use (renewable)
  2. Reduced pollution and lack of environmental impacts
  3. Doesn’t pose many health hazards

Disadvantages or Cons of Wood and Biomass Gasification:

  • Carbon Monoxide (Which is combustible, so is also a useful advantage when used efficiently and properly). Woodgas is:
  • 22% Carbon Monoxide
  • 18% Hydrogen
  • 3% Methane
  • 6% Carbon Dioxide
  • 51% Nitrogen

Some different fuels for gasification include wood in the form of sticks, chips, and pellets and dried crops.

There are four main processes in Gasification. They are Drying, Pyrolysis, Combustion, and Reduction.

Drying is simply using the heat imparted on wet biomass to create dry biomass and water. We have to burn some fuel before we can have this heat.

Pyrolysis: Wood or Biomass Gasification for Energy Independence: Wood Gassifier

Pyrolysis: Wood or Biomass Gasification for Energy Independence: Wood Gassifier

Pyrolysis is in the space with no air. If you use heat from combustion to process dry biomass with no air, it will make charcoal and tar gas. We have to get above 270 C for this to happen.

Combustion: That tar gas and charcoal, with oxygen from air, will combust creating water (H2O) and Carbon Dioxide (CO2). During normal combustion, you get heat, water, and carbon dioxide. Example: C3H8 + 5O2 –> Heat + H20 +3CO2. This is also called an exothermic reaction. Heat released by this reach up to 1400 C.

If we limit the Oxygen, we still get combustion, but we get this — Heat + H2O + CO2 + CO + H2. Both CO and H2 are combustible.

Reduction: This requires a lot of heat. The red hot charcoal left over, CO2 and H2O then makes H2 and CO, which are both the main gasses created. Carbon (Char) reacts with CO2 and makes CO. The water vapor byproducts are used. Carbon (Char) reacts with CO2 and makes CO. CO2 + C + Heat –> 2CO. It also reacts with the water, takes oxygen and makes CO and H2. H2O + C +HEAT –> H2 + CO. This is an endothermic reaction (needs heat added to it).

This stage makes methane as well when the char carbon binds with some of the Hydrogen and some CO also reacts with H with a byproduct of water.

Pyrolysis: Wood or Biomass Gasification for Energy Independence: Wood Gassifiying Camp Stove

Pyrolysis: Wood or Biomass Gasification for Energy Independence: Wood Gassifiying Camp Stove

Now for the homework section of this post. Let’s create a Woodgas Camp Stove. Let’s start easy. My recent trial and error with an alcohol burner (which I will revisit) has made me think… It is much more viable to have a WOOD BURNING camp stove in your bag. Visit this document from Morrisville State College for a PDF.

Enter and Win!!!

Enter the challenge for:

  • 13 Different Adventures to try
  • A way to put enjoyment back in life
  • Cool Tips and Tricks for future adventures
  • Entry into our Yearly Giveaway
We won't send you spam. Unsubscribe at any time. Powered by ConvertKit
Ken
Ken
Ken is addicted to fitness and mountain biking. He is such a thrill seeker, people are starting to be concerned!He enjoys MTBing, Hiking, Climbing, Geocaching, Orienteering, Weight Lifting, and Wilderness Survival.

Comments are closed.