11. Like most household cleaning aerosols, the propellant is a blend of propane and isobutane . 12. Some portable camp stoves use a mixture of isobutane with propane, usually 80 : 20. 13. Isobutane is used as part of blended fuels, especially common in fuel canisters used for camping.14. Isobutane is primarily used by refineries to enhance ( increase ) the octane number of motor gasoline.15. Unreacted isobutane is recovered and recycled back to the reaction section to mix with the olefin feed. 16. Isobutane is used as a feedstock in the petrochemical industry, for example in the synthesis of isooctane.17. The most common replacements are mixtures of volatile hydrocarbons, typically propane, n-butane and isobutane . 18. His contribution was based on experiments he conducted in the 1930s with two hydrocarbon compounds, isobutane and olefin. 19. In the Chevron Phillips slurry process for making high-density polyethylene, isobutane is used as a diluent. 20. For example, isooctane results from combining butylene with isobutane and has an octane rating of 100 by definition.
