Title: Define refinement.
Course: Energy Source Life Cycle I (20903-I) > Section: Understanding Refinement Techniques

Definition should include the concept that energy fuels must go from a raw state to a usable state for various purposes (impurities and unwanted elements must be removed).

Process/Skill Questions:

- Why are some components used in other production (e.g., plastics) removed from fuels?
- Why are unwanted impurities removed?
- How does refinement affect efficiency?