Chiyoda Residuum Hydrodesulfurization Units

1. Mizushima Refinery, Mizushima, Japan
   • Nippon Petroleum Refining Co., Ltd.
   • 27,800
   • E.P.C.
   • 1970
2. Okinawa Sekiyu Seisei Refinery, Okinawa, Japan
   • Okinawa Sekiyu Seisei Co., Ltd.
   • 38,000
   • B.E.P.C.
   • 1972
3. Idemitsu Kosan Co., Ltd. 40,000 Hyogo, Japan B.E.P.C. 1972
4. Mitsubishi Oil Co., Ltd. 45,000 Mizushima, Japan B.E.P.C. 1972
5. Idemitsu Kosan Co., Ltd. 50,000 Chita, Japan B.E.P.C.M. 1975
   1. • • Yamaguchi Refinery**, Yamaguchi, Japan
   • Seibu Oil Co., Ltd.
   • 45,000
   • B.E.P.C.
   • 1976
   1. • • Chiba Refinery**, Chiba, Japan
   • Maruzen Oil Co., Ltd.
   • 30,000 x 2
   • B.E.P.C.
   • 1977
   1. • • Sakaide Refinery** - Sakaide, Japan
   • Asia Oil Co., Ltd.
   • 28,000
   • B.E.P.C.
   • 1980
   1. • • Muroran Refinery** , Muroran, Japan
   • Nippon Petroleum Refining Co., Ltd
   • 25,000
   • B.E.P.C.M.
   • 1982
   1. • • Taoyuan Refinery** Toa-Yuan, Taiwan
   • Chinese Petroleum Corp.
   • 30,000
   • E.P.C.CS.M.T.
   • 1985
   1. • • Taoyuan Refinery** Toa-Yuan, Taiwan
   • Chinese Petroleum Corp.
   • 15,000
   • E.P.C.CS.M.T.
   • 1989
6. Sk Ulsan Refinery - Ulsan, Korea
   • Yukong Ltd.
   • 30,000
   • B.E.PS.CS.M.
   • 1992
7. Idemitsu Kosan Co., Ltd. 50,000 Chita, Japan B.E.P.C.M. 1992
8. Kaohsiung Refinery, Kaohsiung, Taiwan
   • Chinese Petroleum Corp.
   • 30,000
   • E.P.C.CS.M.
   • 1992
9. Negishi Yokahama Refinery, Negishi, Japan
   • Nippon Petroleum Refining Co., Ltd.
   • 30,000
   • B.E.P.C.
   • 1993
10. Hokkaido Refinery Tomakomai, Japan
    • Idemitsu Kosan Co., Ltd.
    • 35,000
    • B.E.P.C.
    • 1994
11. Mizushima Refinery, Mizushima, Japan
    • Mitsubishi Oil Co., Ltd.
    • 45,000 (Retrofit)
    • B.E.P.C.M.
    • 1995
12. Sendai Refinery, Sendai, Japan
    • Tohoku Oil Co., Ltd.
    • 45,000
    • B.E.P.C.M.
    • 1996
13. Tonen Corp. 25,000 Kawasaki, Japan E.P.C. 1997

++++ OCR-Onstream Catalyst Replacement*

1. Idemitsu Kosan Co., Ltd. 50,000 Chita, Japan B.E.P.C.M. 1992
2. Hokkaido Refinery Tomakomai, Japan
   • Idemitsu Kosan Co., Ltd.
   • 35,000
   • B.E.P.C.
   • 1994
3. Mizushima Refinery, Mizushima, Japan
   • Mitsubishi Oil Co., Ltd.
   • 45,000
   • B.E.P.C.M.
   • 1995