Japanese refiner Idemitsu and industrial gas supplier Air Water plan to supply B5 biodiesel to domestic construction company Kashima for use at its construction sites in Hokkaido prefecture, starting from mid-June.
Kashima will use B5 biodiesel, typically a blend of 5pc biodiesel and conventional diesel, for its construction machinery and power generators, expecting to consume up to 1,600 kiloitres/yr. Kashima is unsure how much carbon dioxide (CO2) emissions it can curb by replacing diesel with biodiesel, although B5 biodiesel can usually reduce CO2 emissions by 5pc compared with conventional diesel.
Idemitsu will produce diesel at its refinery in Hokkaido, while Air Water will manufacture the biodiesel with Idemitsu's diesel by using used cooking oil collected from kitchens at Seicomart convenience stores in Hokkaido. Idemitsu will then check the quality of the B5 biodiesel and sell it to Kashima.
Idemitsu aims to expand its biodiesel supplies outside Hokkaido in the future, although it declined to disclose further details.
Idemitsu is attempting to build supply chains of sustainable aviation fuels, biodiesel and biomass-based petrochemical goods by 2030 as part of its decarbonisation strategy. The company delivered biofuel made from blending fatty acid methyl ester and heavy fuel oil for trial use on a vessel in Hokkaido during February-March 2023.