Aichi Complex | Overview
Overview
| Beginning of operation | 1975 |
|---|---|
| Number of employees | 593 (as of April 1, 2025) |
| Site area |
Minamihama district 627,000 tsubo (2,070,000 square meters: equivalent to 43 Nagoya Domes) Kitahama district 325,000 tsubo (1,080,000 square meters: equivalent to 22 Nagoya Domes) Total 952,000 tsubo (3.15 million square meters) |
| Location/Access | |
| Contact us by phone |
Aichi Complex Idemitsu Kosan Co.,Ltd. Office General Affairs Division Telephone number: 0562-55-1111 (Monday to Friday 8:00am to 4:30pm) |
History
| 1975 | Start of operation Crude oil processing capacity 130,000 barrels/day (20,700kL/day) |
|---|---|
| 1977 | Obtained JIS mark display approval |
| 1986 | Alkylation equipment completed |
| 1987 | Completed heavy oil fluid catalytic cracking unit |
| 1990 | Increase crude oil processing capacity by 150,000 barrels/day (23,800kL/day) |
| 1991 |
Aichi CCS Center completed Acrylic acid production equipment completed |
| 1992 | TPM PM Excellence Award Winner |
| 1993 |
Completion of debenzene removal equipment Increase crude oil processing capacity to 160,000 barrels/day (25,400kL/day) |
| 1996 |
Obtained ISO 9002 certification Second diesel oil hydrodesulfurization unit completed. |
| 1998 | ISO 14001 certified* |
| 1999 | Acquired high pressure gas certification (completion/safety) inspection implementer certification. |
| 2003 | ISO 9001 certified* |
| 2004 |
No. 3 power generation facility begins operation Completed cracked gasoline desulfurization equipment |
| 2007 | Obtained certification under the new JIS mark display system |
| 2009 | Start of complex hydrogen recovery/fuel collaboration business |
| 2010 | Energy Conservation Grand Prize Minister of Economy, Trade and Industry Award |
| 2010 | Obtained Excellent 3 certification from the Social and Environmental Green Evaluation System (SEGES) |
| 2014 | Increase crude oil processing capacity to 175,000 barrels/day (27,800kL/day) |
| 2017 | Crude oil processing capacity reduction: 160,000 barrels/day (25,400kL/day) |
| 2018 | Completion of mixed xylene recovery equipment |
| 2022 | Acquired Chita Complex manufacturing facilities from ENEOS Corporation |
| 2024 | Increased crude oil processing capacity to 165,000 barrels per day (26,230 kL per day) |
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The scope of ISO14001 and 9001 certification covers the Minamihama area.
Features
As an energy supply base for central Japan
Aichi Complex began operations in 1975 as the Refinery in the coastal industrial zone of Chita City, as an energy supply base for central Japan.
Aichi Complex is the last Refinery to be constructed in Japan, and as environmental measures progress, the plant is striving to be able to flexibly respond to changes in the demand structure.
Sea berth/crude oil tank
Crude oil is unloaded from open ocean sea berths into crude oil tanks via pipelines.
Atmospheric distillation unit: 165,000 barrels/day
Crude oil is heated to approximately 360℃ and separated into LPG, naphtha, kerosene, light oil, and heavy oil using the difference in boiling points.
Product shipment
Gasoline, kerosene, and diesel are shipped directly from Complex to service station by large tanker trucks.