Ramsbottom Carbon Residue Apparatus

Ramsbottom carbon residue (RCR) is well known in the petroleum industry as a method to calculate the carbon residue of a fuel. The carbon residue value is considered by some to give an approximate indication of the combustibility and deposit forming tendencies of the fuel.Ramsbottom Carbon Residue of Petroleum Products. This test method covers the determination of the amount of carbon residue left after evaporation and pyrolysis of an oil, and is intended to provide some indication of relative coke-forming propensity.