The hydrotreater removes sulfur from which products?

• A. Gasoline and diesel
• B. Jet fuel and kerosene
• C. Lubricating oil
• D. Asphalt

Answer: (A)

Sulfur is removed in a hydrotreater through a hydrodesulfurization process, where hydrogen and a catalyst react with sulfur-containing compounds in the fuel to form hydrogen sulfide, leaving desulfurized hydrocarbons. This step is essential to meet fuel sulfur specifications and protect downstream processes.

Gasoline and diesel are the primary light products targeted for sulfur removal in refinery hydrotreater units, because these fuels must meet strict sulfur limits before blending and distribution. The other options represent heavier or different product streams that aren’t the main focus of a typical hydrotreater aimed at meeting fuel sulfur specs.