Concept

Throughout the life cycle of an oil product, the largest environmental impact is generated during its use.
In the 1960s, to prevent SOx (sulfur oxides) emissions from polluting the air in urban areas, the oil industry made investments in heavy fuel oil desulfurizers to reduce the environmental impacts.
In the 1970s, rapid motorization caused air pollution problems. To respond to the demands of the community, the oil industry has actively decreased environmental loads generated by gasoline and diesel fuel oil.
We will continue these activities to preserve the atmospheric environment and to improve the quality of oil products.

Reducing gasoline-induced environmental impacts

Since 2000, to decrease gasoline-induced environmental impacts, Cosmo Oil, along with other petroleum companies in the oil industry, has actively reduced benzene content, vapor pressure, and sulfur content.

Reducing benzene

Benzene could be harmful to the human body. In January 2000, we reduced benzene content in gasoline from less than 5% to less than 1%.

Reducing vapor pressure

Evaporative emissions cause photochemical smog. To reduce them, since 2001 we changed the gasoline vapor pressure from less than 78 kPa to less than 72 kPa in summer.
Since 2005, we have produced gasoline at a vapor pressure of less than 65 kPa.

Reducing sulfur (sulfur-free)

The reduction of sulfur content in gasoline or diesel fuel oil has two advantages: reducing the amount of air pollutants and maximizing the performance of the exhaust purifying system of automobiles.
Since 2005, Cosmo Oil has provided sulfur-free gasoline (with sulfur content of less than 10 ppm), along with other petroleum companies in the oil industry.

Reducing sulfur in diesel fuel oil

The oil industry has made efforts to reduce sulfur content in diesel fuel oil by means of advanced technologies each time exhaust emissions limits have been changed. We started supplying diesel fuel oil having a sulfur content of 50 ppm in April 2003, and sulfur-free diesel fuel oil (with sulfur content of less than 10 ppm) in January 2005.
The combination of sulfur-free diesel fuel oil and environmentally friendly vehicles can not only reduce NOx (nitrogen oxides) and PM (particulate matter), but can also improve fuel efficiency which is an effective means to achieve a reduction of CO2 emissions thus contributing to the prevention of global warming.

Reducing sulfur in kerosene

The sulfur content of kerosene for home-fuel is less than 0.008 weight%, which allows you to safely burn it indoors.