Catalytic desulfurization is an advanced method used mainly within the petroleum industry to strip sulfur compounds from fuels. Its primary means are to decrease the sulfur content of fuels in the hope of meeting environmental requirements and protecting against mechanical corrosion. Technology that goes into catalytic desulfurization includes the use of catalysts that helps convert sulfur compounds in to hydrogen sulfide, which can be easily removed from it afterward. The process works at relatively low temperatures and pressures so it is energy-efficient. The applications of catalytic desulfurization are broad and diverse, spanning from low-sulfur gasoline and diesel production to treatment of natural gas or oil sands. For refiners, it's an essential stage that ties-up all later refining processes. It guarantees compliance with environmental standards and also improves the quality of final fuels.