O-18　Effects of heartwood, sapwood and bark blending on the suppression of clinker formation in gasifiers

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Other Title
  • O-18　スギ燃料ガス化炉のクリンカ形成抑制のための心材、辺材および樹皮の配合効果
  • Comparison of ash fusibility of black heartwood and red heartwood
  • 黒心材と赤心材の灰溶融性比較

Abstract

<p>Small-scale wood gasification combined heat and power plants, which are promising for realising a decarbonised society and local revitalisation, have a low operation rate in Japan, partly due to the generation of clinker from the inorganic components of wood fuels, particularly cedar. In previous studies, although additives for clinker suppression were investigated, reducing the cost of additives was a challenge. The authors therefore considered that the clinker suppression effect could be achieved by appropriately blending cedar parts in the raw material instead of additives, and investigated blending sapwood and bark with the black heartwood of cedar. However, it was unclear whether the blending of sapwood or bark was effective for red heartwood. This study clarified the effect of binary blend of sapwood, heartwood, and bark on the ash fusion temperature for red heartwood of cedar and to identify the blend conditions to improve the fusion temperature.</p>

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