Patent ID: 8748677
Filing Date: 2014-06-10
Classification: C10L

Abstract:
1. A method for making fuel enriched by mixed pentanes comprising the steps: a) providing a fuel blending unit characterized by: b) providing: c) measuring the fuel stream for its actual volatility (the “fuel stream volatility”), upstream or downstream of the fluid connection, d) calculating a rate (the “additive stream flow rate”) at which the additive stream can be added to the fuel stream so as not to exceed the maximum blended volatility, wherein the calculating is based upon: e) adding the additive stream to the fuel stream at the additive stream flow rate at the fluid connection to make pentane enriched fuel having a final octane value, wherein said ratio of isopentane to n-pentane in said mixed pentane stream is adequate to overcome the depression in octane induced by said n-pentane, such that the n-pentane does not cause the final octane value to drop below the fuel stream octane value.