The combustion of petroleum fuels products air pollutants, including oxides of sulphur("SOX") that endanger public health and harm the environment. Sulphur compounds cause corrosion of pumps, pipes and refining equipment and premature failure of internal combustion engines, power generation units and steam boilers. Catalytic converters are degraded by sulphur and increase NOx formation. SOX is a major precursor to acidic deposition ("acid rain"), which is associated with the acidication of soils, lakes and streams, accelerated corrosion of buildings and reduced visibility.
All over the world, governments are imposing tighter standards on fuel quality and vehicle emissions. At the same time, air quality targets are rising. International and US regulatory bodies such as EPA, CARB and SCAQMD are responsible for publishing and enforcing air quality standards and have passed legislation on sulphur content in petroleum products.
With recent amendments to the sulphur content standards in the petroleum products by many countries, IUT technology is opportune. Many countries have mandated regulations on the production and use of ultra low sulphur diesel and gasoline to less than15ppm even 10ppm.
Current Regulatory Picture:
Canada/US gasoline: 30 ppm sulfur
Canada/US On-road diesel: 15 ppm sulfur
Canada/US Non-road diesel: 15 ppm sulfur
Europe/China on road gasoline /diesel: 10ppm sulphur