US 2009/0289013 A1 · Method for determining the filterability of jet fuel containing additive(s) and conditions for the delivery of acceptable water content fuel

Abstract

It has been discovered that jet fuel containing enhanced thermal stability additives and water can be delivered with a final water content of 15 ppm or less via existing jet fuel distribution system by controlling the fuel flow rate through the fuel delivery system comprising one or more filter coalescers and separator systems, said controlled fuel flow rate being determined by passing a sample of actual fuel through a sample of the fuel filter at various fuel flow rates to identify the flowrate at which the fuel effluent contains 15 ppm or less.

Claims21

Dependent claims

A method for determining the filterability of a wet-additized jet fuel for delivery with an acceptable water content comprising:

(1) securing a sample of the wet-additized jet fuel;
(2) passing the sample of jet fuel through an operable filter/coalescer cartridge containing material of the type intended for use in a filter/coalescer and separator system to be employed to deliver dry fuel to the end user, at a number of fuel flow rates, to produce a filtered fuel effluent;
(3) measuring the water content of the filtered fuel effluent at different fuel flow rates;
(4) identifying the fuel flow rate at which the filtered fuel effluent has a water content meeting the acceptable target value;
(5) employing the identified fuel flow rate at which the filtered fuel has the acceptable water content as the maximum fuel flow rate at which to operate the filter/coalescer and separator system.

2 more elements

A method for determining the capacity of a filter/coalescer and separator system for the commercial removal of water from wet additized jet fuel for the delivery of additized jet fuel with an acceptable water content, said method comprising:

(1) securing a sample of dry-unadditized jet fuel
(2) additizing the jet fuel sample;
(3) securing an operable filter/coalescer cartridge of the type to be used in the practice of the commercial dewatered jet fuel delivery process;
(4) circulating dry-additized jet fuel through the filter/coalescer cartridge to condition the filter/coalescer cartridge;
(5) passing the dry-additized jet fuel through the conditioned filter/coalescer cartridge at an initial controlled fuel flow rate to produce a fuel effluent;
(6) measuring the water content of the fuel at different rates to establish different water content levels in the additized fuel;
(7) metering water into the additized fuel while flowing fuel through the filter/coalescer cartridge and measuring the water content of the fuel effluent at the different additized fuel water content levels;
(8) repeating steps 4 through 7 at a number of the higher and lower fuel flow rates;
(9) recording the additized fuel water content levels and fuel effluent water content levels at the different fuel flow rates;
(10) determining the additized fuel water content at each fuel flow rate that gives an effluent fuel water content meeting the acceptable water content level;
(11) plotting the wet-additized fuel flow rate versus the additized fuel water content level values that yield an effluent fuel having the acceptable water content level;
(12) determining from the plot the additized fuel water content level, and fuel flow rate operational limits of the filter/coalescer cartridge to dewater wet-additized jet fuel.

9 more elements

A method for identifying additives for addition at any point in a jet fuel distribution system for the delivery of additized jet fuel with an acceptable water content, through a commercial dewatered jet fuel delivery process, such method comprising:

(1) securing a sample of dry-unadditized jet fuel;
(2) additizing the jet fuel sample with one or more additives being evaluated;
(3) securing an operable filter/coalescer cartridge of the type to be used in the practice of the commercial dewatered jet fuel delivery process;
(4) circulating dry-additized jet fuel through the filter/coalescer to condition the filter/coalescer cartridge;
(5) passing the dry-additized jet fuel through the conditioned cartridge at an initial controlled fuel flow rate to produce a fuel effluent;
(6) measuring the water content of the fuel effluent;
(7) metering water into the additized fuel at different rates to establish different water content levels in the additized fuel while flowing the fuel through the cartridge and monitoring the water content of the fuel effluent at the different additized fuel water content levels;
(8) repeating steps 4 through 7 at a number of the higher and lower fuel flow rates;
(9) recording the additized fuel water content levels and fuel effluent water content levels at each of the different fuel flow rates;
(10) determining whether the additized fuel at any water content level of the flow rates gives an effluent fuel water content meeting the acceptable water content level;
(11) plotting the wet-additized fuel flow rate versus the additized fuel water content level values for those additized fuels that yield an effluent fuel meeting the acceptable water content level;
(12) determining from the plot for the additized fuel which produced an effluent meeting the acceptable water content level the additized fuel water content levels and fuel flow rate operational levels of the filter/coalescer cartridge to produce dewatered additized jet fuel;
(13) identifying for addition at any point in the jet fuel delivery system the additive or additives the presence of which in the jet fuel did not prevent the filter/coalescer cartridge from dewatering the wet-additized fuel to an acceptable water content level at an acceptable fuel flow rate.

10 more elements

A method for the delivery of additized jet fuel with an acceptable water content level through a commercial dewatering system employing a filter/coalescer and separator system, such method comprising:

(1) securing a sample of dry-unadditized jet fuel;
(2) additizing the jet fuel sample;
(3) securing an operable filter/coalescer cartridge of the type to be used in the filter/coalescer and separator system in the practice of the commercial dewatering system;
(4) circulating dry-additized jet fuel through the filter/coalescer to condition the filter/coalescer cartridge;
(5) passing the dry-additized jet fuel through the conditioned cartridge at an initial controlled fuel flow rate to produce a fuel effluent;
(6) measuring the water content of the fuel effluent;
(7) metering water into the additized fuel at different rates to establish different water content levels in the additized fuel, while flowing fuel through the cartridge and measuring the water content of the fuel effluent at the different additized fuel water content levels;
(8) repeating steps 4 through 7 at a number of different higher and lower fuel flow rates;
(9) recording the additized fuel water content levels and fuel effluent water content levels at the different fuel flow rates;
(10) determining the additized fuel water content at each fuel flow rate that gives an effluent fuel water content meeting the acceptable water content level;
(11) plotting the wet-additized fuel flow rate versus the additized fuel water content level values that yield at effluent having the acceptable water content level;
(12) determining from the plot the additized fuel water content level and fuel flow rate operational levels of the filter/coalescer cartridge to dewater wet-additized jet fuel;
(13) delivering additized jet fuel with an acceptable water content by operating the commercial jet fuel filter/coalescer and separator dewatering system at conditions of additized fuel water content levels and fuel flow rates within the operational limits established in the prior step.

10 more elements

Dependencies are inferred from the claim text.

Method for determining the filterability of jet fuel containing additive(s) and conditions for the delivery of acceptable water content fuel

Life of this patent

Method for determining the filterability of jet fuel containing additive(s) and conditions for the delivery of acceptable water content fuel

Life of this patent

Abstract

Claims21