The ASTM method for the analysis of sulphur forms in coal is applied to a hydrodesulphurized coal. Precautions necessary to prevent the calculation of erroneous high values of organic sulphur are illustrated. The reduction of sulphate ion to sulphite ion by the hydrogen is reported. A complete sulphur balance shows the amounts of each sulphur form reacting with hydrogen.
Bibliographical noteFunding Information:
This work was supported by the Energy Research and DevelopmentA dministration-Fossil Energy under contract number E(49-18)1225. This assistancei s greatly appreciated. We also wish to acknowledget he help of Dr J. 0. Golden and Robert M. Baldwin of Chemicala nd Petroleum Refining Engineering Department at the Colorado School of Mines in providing the coal samples,i n performing the gas chromatographic experiment, and for helpful discussions.
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