Hydrodesulfurization (
HDS) is a
catalytic chemical process widely used to remove
sulfur (S) from
natural gas and from
refined petroleum products, such as
gasoline or petrol,
jet fuel,
kerosene,
diesel fuel, and
fuel oils. The purpose of removing the sulfur is to reduce the
sulfur dioxide emissions that result from using those fuels in automotive
vehicles,
aircraft, railroad
locomotives,
ships, gas or oil burning
power plants, residential and industrial
furnaces, and other forms of fuel
combustion.