FastOx Gasification

The next generation of waste gasification.

FastOx gasification uses steam and oxygen to break down waste at the molecular level. Organic materials turn into energy-dense syngas. Inorganics melt into non-leaching stone and metals. Waste turns into particulate and tar-free syngas suitable for conversion into high-value end products. There are no waste by-products created.

Sierra Energy System Line Drawing

How FastOx Gasification Works

High-Value End Products


Syngas can be used to power generator sets and gas turbines. The clean syngas results in electricity being produced with lower specific emissions than even natural gas.


Hydrogen is created using water gas shift and pressure swing adsorption separation, and is suitable both for injection into a pipeline or for use in a hydrogen fuel cell.


Methanol is generally produced from syngas derived from fossil fuels. That syngas source can now come from waste using FastOx gasification.


There are several commercial methanation technologies available that can convert syngas from waste into renewable natural gas.


Ammonia produced from syngas using the Haber-Bosch process can be used as the primary ingredient in chemical fertilizers.

Our System Leaves No Waste Behind

No Waste Left Behind Graphic

Don't stop here

Our Knowledge Base contains detailed articles about our technology, the chemistry of gasification and the future of using waste to decarbonize energy and fuels.