To aid our customers in the key words and concepts of gasification, we have provided a gasification glossary below. For a more in depth look at how our downdraft gasification system works, visit the Our System page.
Briquetting– the act of compacting small fuel streams (such as ground municipal solid waste, sawdust or other finer feeds) in to a larger solid. This is accomplished through a piece of equipment called a briquetter.
BTU– abbreviation for British thermal unit. Btu is a measure of the heating value of a fuel. The higher the number of Btu’s per pound of feedstock, the higher the heating value.
CHP– abbreviation for Combined Heat and Power and is the use of a heat engine or power station to generate electricity and useful heat at the same time.
Combustion– burning or incineration of a fuel using excess air or oxygen. Gasification is not combustion. It is a different type of process, producing a gas.
Downdraft Gasification– also known as co-current fixed bed gasification, is the form of gasification where the fuel is fed in from the top of the reactor and moves in a downward direction along with the gases that form from the fuel as it moves through the heated reactor.
Feedstock– the material fed into a gasifier system and converted into a synthesis gas (syngas). Any carbon-containing material, (solid, liquid or gas), can be used as a feedstock for a gasifier.
Gasification– is a process that converts organic or fossil fuel based carbonaceous materials into carbon monoxide, hydrogen and carbon dioxide. This is achieved by reacting the material at high temperatures, without combustion, with a controlled amount of oxygen and/or steam.
Milling– the act of grinding or crushing your feedstock, typically in equipment like a gyroscopic grinder.
Municipal Solid Waste (MSW)– commonly known as trash or garbage in the U.S. and as refuse or rubbish in the UK, is a waste type consisting of everyday items that are discarded by the public.
PLC– abbreviation for Programmable Logic Controller, this technology ensures your system runs consistently and safely.
Pyrolysis– one of the stages of the gasifier reactor. It is the application of heat to the feedstock to begin breaking down into a mixture of liquids, solids and gases.
Syngas aka Producer Gas– it is the end product of a gasification system. It has similar properties to natural gas and the key combustible gases it contains are hydrogen and carbon monoxide.