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The Keihin Refinery operates the first commercial FlexiCoking unit started up by TOA Oil in 1976

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Toa Keihin Refinery
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Kokel, Nicolas
4/30/2026 1:51 PM


The Keihin Refinery is located in the center of the Keihin coastal area, one of Japan's leading industrial regions, and functions as a refinery that plays a part in ensuring a stable energy supply for the Idemitsu Kosan Group. The Keihin Refinery is characterized by its high rate of cracking units, and in addition to the crude oil that general refineries process, it also processes heavy feedstock oil (residual oil generated after processing crude oil) received from other refineries.

Read the detailed refinery profile here.

#toaoil  #keihinrefinery  #japan  #flexicoking