超臨界水による重質油利用における装置と材料(<特集>水を使った重質油処理)

概要

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Upgrading of heavy oils, such as oil shale, oil sand, and distillation residue in petroleum industry has a significant importance for making good use of limited fossil fuel resources. Conversion of heavy oils into lighter and cleaner liquid fuels with using supercritical water (SCW) as both a solvent and a reactant has attracted much attention due to its environmental merit. We have studied the conversion of heavy oils in SCW by experiments with batch reactors and engineering-scale continuous test equipments. Through the studies, effects of operation conditions such as temperature, pressure, water/feed-ratio and catalyst on the conversion have been clarified and qualities of product oils were investigated in detail. In this paper, we focused on our process for upgrading of heavy oils in SCW, equipments for the process and corrosion resistance of equipment materials under SCW conditions.
2009-03-20