Unit 3 A.4-A.6

A carbon footprint is the quantity of greenhouse gases emitted based upon individual activities measured in kilograms of carbon dioxide. Distillation is a process that separates liquid substances based on differences in their boiling point. If you heat a liquid mixture containing two components, the component that would vaporize first would be the component with the lower boiling point. To separate crude oil you must apply distillation techniques to large-scale oil refining. The refining process producing several distinctive mixtures is called fractions. Fractional distillation is a process of separating a mixture into its components by boiling and condensing the components. In a distilling column the temperature is the highest at the bottom and the lowest on the top. In distillation the vaporized molecules moves up in the distilling column. Bottoms are components from petroleum found in the lower trays of a fractionating tower after distillation.