The diesel desulfurization technology developed by Professor Kotaro Kirimura and his research team at Waseda University uses thermophilic bacteria and is capable of removing 70-80% of sulfur content. Dibenzothiophene (DBT) is selectively decomposed, reducing sulfur concentration to less than 50ppm. Treatment temperature is 60-70°C, reducing energy costs by 50% or more. Applicable to Nippon Oil Corporation and Idemitsu Kosan, the cost is reduced by about 30%. 2004 emission regulations are expected to be complied with and the system is expected to be introduced in industrial areas.

The diesel desulfurization technology developed by Professor Kotaro Kirimura and his research team at Waseda University uses thermophilic bacteria and is capable of removing 70-80% of sulfur content. Dibenzothiophene (DBT) is selectively decomposed, reducing sulfur concentration to less than 50ppm. Treatment temperature is 60-70°C, reducing energy costs by 50% or more. Applicable to Nippon Oil Corporation and Idemitsu Kosan, the cost is reduced by about 30%. 2004 emission regulations are expected to be complied with and the system is expected to be introduced in industrial areas.