Patent ID: 8147570

Claim:
A system for making a fuel composition having a predetermined Reid Vapor Pressure, comprising: a blending tank; a delivery system comprising flow meters for providing specific amounts of fuel composition components to the blending tank, the delivery system comprising input streams for one or more hydrocarbon feedstock, optionally one or more oxygenate feedstock, and optionally one or more additive feed; a Reid Vapor Pressure monitor for determining a Reid Vapor Pressure of the fuel composition in the blending tank; a controller for controlling amounts of fuel composition components provided to the blending tank by the delivery system based upon at least the Reid Vapor Pressure of the fuel composition as determined by the Reid Vapor Pressure monitor, the controller operatively coupled to the Reid Vapor Pressure monitor and the delivery system; the delivery system further providing to the controller an amount of each fuel composition component charged into the blending tank; the controller configured to recognize the Reid Vapor Pressure of the fuel composition as determined by the Reid Vapor Pressure monitor and stop, start, or alter input streams of the delivery system to obtain a fuel composition having the predetermined Reid Vapor Pressure or a fuel composition having a Reid Vapor Pressure closer to the predetermined Reid Vapor Pressure; and a memory coupled to the controller for storing information generated by the delivery system and the Reid Vapor Pressure monitor.