Conductive Carbon Black

Furnace black is a material produced by the incomplete combustion or thermal decomposition of hydrocarbon fuels such as natural gas, oil, and coal. It is composed of mostly elemental carbon along with small amounts of hydrogen, oxygen, sulfur and nitrogen. Furnace black exists as a fine powder that is black in color. It is an amorphous material that has a high surface-area-to-volume ratio, exhibiting properties of both metals and non-metals.

Production and Chemistry of Conductive Carbon Black

The most common production method is the furnace process, where the hydrocarbon feed is introduced into a high temperature furnace along with hot combustion gases. The feed is thermally decomposed in the furnace and carbon particles are formed which aggregate and grow to the desired size before being cooled and transported out of the furnace.

The properties of Conductive Carbon Black depend on the production process and conditions used. The hydrocarbon feed, furnace operating temperature, residence time within the furnace, and furnace cooling conditions can all affect the resulting particle size, structure, surface area and other qualities of the furnace black. With the furnace process, changes to these production variables allow manufacturers to tune the properties of furnace black for specific applications.

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