Steam Saving by Waste-Heat Recovery from Pulping Wastewater

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Other Title
  • パルプ系排水からの廃熱回収による省蒸気
  • パルプケイ ハイスイ カラノ ハイネツ カイシュウ ニ ヨル ショウジョウキ

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Description

In Hachinohe mill of Mitsubishi Paper Mills Limited, an energy saving is forwarded as an urgent task for a cost-reduction theme which is set in “Pheonix Plan” of our company. An energy-utilization committee and an executive meeting of international organization for standardization (ISO) 14001 in our mill are organized with same members to link efforts for the task. Thus, we are tackling an improvement of a specific energy-consumption grasping an effect of the energy saving in real time.<BR>In this paper, effects of facilities, which started running in November 2006 for a waste-heat recovery from wastewater, on the energy saving were described. These efforts were conducted for saving an increased steam usage in a papermaking process by decreased water temperature in winter. Water temperature was increased in the papermaking process by recovering waste-heat which had been discharged to the atmosphere from a cooling tower of pulping wastewater. This considerably improved a specific steam-consumption in the process.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 61 (5), 523-526, 2007

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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