PetroSun
Encyclopedia
PetroSun is an energy company specializing in oil and gas exploration and algae fuel
. It headquarters are in Scottsdale, Arizona
, USA.
PetroSun's website describes a process called "carbon negative energy production". Organic matter is burnt in a kiln with limited oxygen (pyrolysis). This produces carbon dioxide, hydrogen and charcoal (which PetroSun calls "biochar").
The carbon dioxide is used as a feedstock to grow algae for biofuel. The hydrogen is burnt to generate electricity. The biochar, which contains a lot of carbon, is used as a fertiliser.
If the feedstock is plant matter which fixed atmospheric carbon dioxide, and part of its carbon becomes fertiliser which will not be burnt to re-release the carbon into the atmosphere, the net result is a reduction in atmospheric carbon, i.e.. an overall carbon-negative process.
Algae fuel
Algae fuel might be an alternative to fossil fuel and uses algae as its source of natural deposits. Several companies and government agencies are funding efforts to reduce capital and operating costs and make algae fuel production commercially viable...
. It headquarters are in Scottsdale, Arizona
Scottsdale, Arizona
Scottsdale is a city in the eastern part of Maricopa County, Arizona, United States, adjacent to Phoenix. According to the U.S. Census Bureau, as of 2010 the population of the city was 217,385...
, USA.
PetroSun's website describes a process called "carbon negative energy production". Organic matter is burnt in a kiln with limited oxygen (pyrolysis). This produces carbon dioxide, hydrogen and charcoal (which PetroSun calls "biochar").
The carbon dioxide is used as a feedstock to grow algae for biofuel. The hydrogen is burnt to generate electricity. The biochar, which contains a lot of carbon, is used as a fertiliser.
If the feedstock is plant matter which fixed atmospheric carbon dioxide, and part of its carbon becomes fertiliser which will not be burnt to re-release the carbon into the atmosphere, the net result is a reduction in atmospheric carbon, i.e.. an overall carbon-negative process.