Tokuyama Complex｜Overview
Overview
| Beginning of operation | 1957 |
|---|---|
| Number of employees | 506 people (as of April 1, 2023) |
| Site area |
West area (former Refinery) 200,000 tsubo (656,000 square meters) East area (old factory) 130,000 tsubo (432,000 square meters) Oura district 320,000 tsubo (1,068,000 square meters) |
| Contact us by phone |
Idemitsu Kosan Co.,Ltd. Tokuyama Complex General Affairs Division Phone number 0834-21-1100 Reception hours: 8:00-16:30 (excluding Saturdays, Sundays, holidays, year-end and New Year holidays, and our company's founding anniversary) |
access
Address 1-1 Shingucho, Shunan City, Yamaguchi Prefecture 745-8613
[Directions to the main gate Tokuyama Complex]
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(From Tokuyama Station) Turn right at the traffic light on the north side of Idemitsu Kaikan.
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Go straight along the river in front of Idemitsu Kaikan
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Cross the Sanyo Main Line tracks and go straight ahead until you reach the main gate. (about 200m from the turning signal)
History
Former Refinery
| 1957 |
No. 1 atmospheric distillation device, vacuum distillation equipment, Completion of fluid catalytic cracking equipment |
|---|---|
| 1959 | Completed construction of the second atmospheric distillation unit and second kerosene and gas oil hydrodesulfurization unit. |
| 1960 | Completed construction of naphtha hydrodesulfurization equipment and second catalytic reforming equipment |
| 1972 | Completed construction of the third light and gas oil hydrodesulfurization equipment. |
| 1974 | Designated as a JIS certified factory |
| 1975 | Completed construction of vacuum gas oil desulfurization equipment |
| 1985 | MEK equipment completed |
| 1991 | Completed construction of the third catalytic reformer |
| 1995 | Acquired ISO9002 (all oil types) certification |
| 1996 |
Received TPM Excellence Award 1st category/ Acquired ISO14001 certification Completed construction of the 4th gas oil hydrodesulfurization unit |
| 1998 | Received TPM Excellence Continuation Award, Category 1 |
| 2003 | Acquired ISO9001 (all oil types) certification |
| 2004 | Merged with Idemitsu Petrochemical |
| 2007 | 50th anniversary Refinery operation |
| 2014 | Crude oil processing function stopped (end of March) |
| 2014 | Tokuyama Complex established |
| 2016 | Cumulative styrene monomer production reached 10 million tons |
| 2017 |
Achieved cumulative ethylene production of 20 million tons 60th anniversary of Idemitsu Tokuyama operation |
| 2019 | Acquired high pressure gas specific certification (commonly known as super certification) operator certification. |
| 2020 | High-efficiency naphtha cracking furnace (R4 furnace) completed. |
| 2022 | Biomass power plant completed |
| 2023 | Hydrogenated petroleum resin manufacturing equipment shut down |
Former Tokuyama factory
| 1964 | First ethylene operation begins |
|---|---|
| 1965 | Unifiner 1st Sulfolane begins operation |
| 1967 |
Cyclohexane operation started 2nd sulfolane operation |
| 1968 |
polystyrene operation 2nd ethylene operation |
| 1970 |
Polybutene operation Styrene monomer operation |
| 1972 | IP SOLVENT operation |
| 1974 | No. 2 ethylene accident recovery and restart |
| 1978 | Start of comprehensive business inspection activities |
| 1982 | Suspension of styrene monomer and high deal |
| 1984 | Refinery /factory integration begins |
| 1985 | Liquid rubber operation/1st ethylene suspension |
| 1987 | Paraxylene operation |
| 1988 | Second ethylene capacity expansion |
| 1989 | No. 1 styrene monomer restarted |
| 1991 | Olefin processing equipment (No. 1 ethylene) restarted |
| 1992 | Secondary styrene monomer operation/ISO9002 (polystyrene) certification acquired |
| 1993 | TPM activity kick-off/hydrogenated petroleum resin operation |
| 1996 |
Acquired ISO9001 certification (all products) Acquired ISO14001 certification Winner of TPM Excellence Award, Category 1 |
| 1998 |
Polystyrene equipment suspended Received TPM Excellence Continuation Award, Category 1 |
| 2002 | Increased ethylene capacity (construction of new cracking furnace) |
| 2004 | Merged with Idemitsu Kosan |
| 2008 | Adamantane equipment commercial operation started |
| 2013 | Adamantane device abolished |