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 (hot water) used for cooling is circulated in an air-cooled condenser for cooling, 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.
|Industrial water intake (thousand t)||59,281||40,316|
|Recycled (thousand t)||543,645||1,144,821|
|Recycling rate (%)||90.2||96.6|
At Aichi Refinery, we are working on reducing 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 reduction of water intake in the Chita area as a whole.