Propane is separated out of which two substances during the refining process?

Propane is a hydrocarbon that can be separated from natural gas and crude oil during the refining process. Natural gas primarily consists of methane but also contains propane and other heavier hydrocarbons. When natural gas is processed, propane is extracted as one of the valuable byproducts.

Additionally, crude oil refining involves separating various compounds through distillation. The lighter fractions, which include propane, can be derived from the processing of crude oil as well. This characteristic makes propane an important product during the refining of both natural gas and crude oil, contributing to its availability for various applications, including heating and cooking.

The other choices do not typically involve the separation of propane as part of their refining processes. For instance, unleaded fuel and oil are products more associated with gasoline refining, while kerosene is generally a separate product derived from a different fraction of crude oil, not closely related to propane production.