Bituminous Coal

 

Coal is a combustible black or brownish sedimentary rock composed of carbon and hydrocarbons and is the most abundant fossil fuel in the United States. 

Bituminous coal is a soft coal containing a tarlike substance called bitumen.  It is of higher quality than lignite coal but poorer quality than anthracite coal.  The carbon content of bituminous coal is around 60 – 80%; the balance is composed of water, air, hydrogen, and sulfur.

GRC

By utilizing different power levels and frequencies with bituminous coal, we are obtaining positive results with many variations.  One variation changes the amount of fixed carbon that remains in the ash and shows characteristics of a very valuable coke product, along with generating a gas stream consisting mainly of hydrogen and methane. One of the current and growing problems with burning bituminous coal in system furnaces is the CO and CO2 that is emitted.  Since the GRC system processes bituminous coal in vacuum, oxygen is not introduced, therefore eliminating the concern of CO and CO2 emissions.