Oita refinery

Oita is a medium sized cracking/hydrocracking refinery located on the souther island of Kyushu in Japan.

The refinery is 100% owned and operated by Eneos.

Refinery configuration

Complexity: 7.7

Major process units:

Atmospheric distillation - 14 kbpd

Vacuum distillation - 66 kbpd   

RCC - 26 kbpd    

Hydrocracker - 11 kbpd     

Reformer - Continuous (CCR) unit - 30 kbpd

Naphtha hydrotreater  

Kerosene hydrotreater   

Distillate hydrotreater   

VGO hydrotreater   

Hydrogen production   

Asphalt plant   

Location

1-1 Ichinosu, Oita, 870-0112, Japan

Website 

Refinery history

1964 - Refinery commissioned by Kyushu Oil

2008 - Kyushu Oil acquired by Nippon Oil