A refinery is an industrial facility where raw materials, such as crude oil, are processed and transformed into useful products. This process involves separating and purifying different components through methods like distillation and chemical reactions. The main products of a refinery include fuels like gasoline and diesel, as well as other materials such as lubricants and petrochemicals. Refineries play a crucial role in the energy sector, supplying essential products for transportation, heating, and manufacturing. They are often located near sources of crude oil or transportation hubs, allowing for efficient processing and distribution. The operation of a refinery requires advanced technology and strict safety measures to minimize environmental impact and ensure worker safety.