Chemistry US 10,683,462 B2 Not in force

Aviation gasoline composition, its preparation and use

This invention describes a specific recipe for aviation gasoline. It's primarily made from an impure type of iso-octane, which forms 30-80% of the mixture, blended with xylene and a C4 or C5 alkane. This fuel is designed to power spark ignition aircraft engines and aims to be lead-free, with specific performance characteristics like a high motor octane number.

Why it matters: Since 2019, the push for lead-free aviation gasoline has intensified significantly, with initiatives like EAGLE aiming for widespread adoption of unleaded alternatives. This increased regulatory and environmental pressure makes any viable lead-free fuel formulation, such as this one, much more relevant for development and certification today.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedChemical blending, fuel testing, specific chemicals.

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