Response to Water Risk

Examples of Specific Initiatives

Strengthening of Water Recycling at Refineries and Complexes

Our refineries and complexes, which use a large amount of water, are working on reducing their water consumption. A certain amount of water (seawater and fresh water) is required to cool the process fluid during the oil refining process at refineries. Fresh water becomes hot after used for cooling is circulated in an air-cooled condenser to lower its temperature, and is used again as cooling water for the process fluid to reduce the impact on the natural environment. As a water user, we will make further efforts to recycle water resources.

Recycling of industrial water
  Unit FY2019
Industrial water intake thousand t 81,740
Water recycling rate % 94
  • * Scope of calculation: Idemitsu Kosan and consolidated subsidiaries
出光興産, DFF Inc.

Reduction of Water Consumption through Collaboration with Other Companies

At Aichi Refinery, we are working to reduce water consumption by sharing cold water with other companies through cooperation within the industrial complex. This is an initiative supported by the Research Association of Refinery Integration for Group-Operation (RING). By effectively using the chilled water discharged from the LNG vaporizer of Chita LNG Co., Ltd., which is adjacent to the complex, as process cooling water, we are contributing to the overall reduction of water intake in the Chita area.

Chilled water supply through cooperation within the industrial complex
Figure
出光興産, DFF Inc.