Energy Saving by Reducing Water Content of Lime Mud Filter Cakes

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  • ライムマッドフィルターケーキの含水率低減による省エネルギー
  • ライムマッドフィルターケーキ ノ ガンスイリツ テイゲン ニ ヨル ショウエネルギー

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Abstract

In KP caustic recycle process, a large amount of heavy oil is used as fuel of lime calcinations in the rotary kiln. Reducing the water content in the lime mud is an effective way to reduce heat loss in the lime kiln, and save heavy oil.<BR>This paper focused on a dewatering technology to increase the hydrophobic of the surface of CaCO3 particles by a new developed chemical. It is found that the lime slurry temperature is an important effect on dewatering aid. A new dewatering aid is developed by optimizing the hydrophobicity and its molecular weight. The new dewatering aid achieved 10% of heavy oil saving in a machine trial.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 67 (5), 508-511, 2013

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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