Method and apparatus for analyzing different sulphur forms

Abstract From the Canadian patent

Abstract, A method and apparatus are described for quantitatively determining the different forms of sulphur present in a solid matrix, e.g. coal. The novel method comprises intimately mixing finely divided coal with a finely divided solid diluent material, e.g. silica, which is inert to sulphur under reaction conditions. This mixed sample is then burned within a confined combustion zone at a predetermined elevated temperature and the combustion gases from the combustion chamber are continuously removed. These gases are passed through an infrared analyzer which continuously monitors the intensity of the infrared spectra for sulphur oxycompounds in the combustion gases. The infrared …