12.微生物脱硫における石炭化学構造の変化

概要

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Six coals were treated by the biodesulfurization with Thiobacillus ferrooxidans, and the removal of inorganic sulfur from coal and the chemical structure change of biodesulfurized coal were investigated. The % removal of inorganic sulfur varied from 37-88% depending upon the increasing of pH in the medium and the leaching of Ca from coal during the biodesulfurization. When the chemical structure change of biodesulfurized coal was measured by FT-IR, it was found that elemental sulfur generated on the surface of the biodesulfurized coal treated in the high medium pH. From the XPS measurement, the reduced sulfur compounds were removed in the PT coal, and the oxidized form sulfur was removed in the SS030 coal.
一般社団法人日本エネルギー学会の論文
2006-10-12