What is LP gas primarily composed of?

LP gas, or liquefied petroleum gas, is primarily composed of propane and butane. These hydrocarbons are derived from natural gas processing and petroleum refining. Propane, which can be found in both gaseous and liquid states, is widely used for heating, cooking, and as fuel for various engines. Butane is similar in its applications and is often used in lighters and portable stoves. The combination of propane and butane provides a versatile fuel source that can be easily transported and stored in liquid form under pressure, making it highly efficient for a variety of uses.

The other combinations listed do not accurately reflect what comprises LP gas. Methane and ethane are typically associated with natural gas rather than liquefied petroleum gases. Isobutane and isopropanol are not components of LP gas; while isobutane is a variant of butane, isopropanol is an alcohol, which differs significantly in composition and use. Acetylene and butadiene are used in different industrial applications, primarily in the production of plastics and as a fuel gas, but they are not part of the LP gas composition.