Petrol and diesel fuel oil are the main fuels of cars, ships, aircraft, and all kindsof large-scale machinery, and the ideal fuels of fuel cell. But it contains a lot ofsulfur-containing compounds, these sulfur-containing compounds will produce SOxafter burning that is harmful for environment. All over the world are increasinglydemanding on the environment, and many countries such as the United States, Europeand China have made clear rules for sulfur content of diesel fuel, therefore it isimperative to remo...