Carbon black is produced by the thermal decomposition method or the partial combustion method using hydrocarbons such as oil or natural gas as a raw material. Carbon black is available as powder or beads. Depending on the manufacturing process, carbon black's characteristics vary; hence, carbon black is classified by manufacturing process. Different processes used for manufacturing carbon black are the furnace black process, channel process, acetylene black process, lampblack process, etc. The furnace black process is the most common method used for carbon black manufacturing.
Wood fuels such as wood pellets and wood chips are a form of biofuels originating from wood biomass. Wood fuels are used to generate electricity and heat. Wood fuels are readily available, both as a source of firewood or wood waste and at affordable prices.