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Removal of Additives From Hydrocarbon Fuels

IP.com Disclosure Number: IPCOM000021690D
Publication Date: 2004-Feb-02
Document File: 1 page(s) / 21K

Publishing Venue

The IP.com Prior Art Database

Abstract

It has been found that metal oxides such as MgO and CuO are effective at selectively removing additives from turbine combustion fuels oil. Additives such as polyalkenylthiophosphonic acid (PATPA) are added to turbine combustion fuel oil to inhibit the formation f gums, varnishes and coke deposits. In addition, the PATPA additive can reduce smoke and or soot exhaust emissions form turbines such as jet engines. PATPA is added to combustion fuel oils such as JP-4, JP-5, JP-7, JP-8, Jet-A, JetA-1 and Jet B. The additive can impact the efficacies of fuel handling systems such as coalescers encountered when handling fuel treated with the additives or when return treated fuel to a general fuel pool. The additives negatively impact the watershed qualities of the fuel and selective removal minimizes the difficulties in handling treated fuel. The removal of the additives is desirable in de-fueling operation s such as for military transport aircraft in order to allow the fuels to be returned to the general fuel pool with out adversely impacting fuel handling systems such as filtration and coalescence elements. It has been found that metal oxides such as MgO and CuO effectively removing the additives from large volumes of hydrocarbon fuel is short time periods in methods that were compatible with existing fuel handling equipment.

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Removal of Additives From Hydrocarbon Fuels

It has been found that metal oxides such as MgO and CuO are effective at selectively removing additives from turbine combustion fuels oil. Additives such as polyalkenylthiophosphonic acid (PATPA) are added to turbine combustion fuel oil to inhibit the formation f gums, varnishes and coke deposits. In addition, the PATPA additive can reduce smoke and or soot exhaust emissions form turbines such as jet engines. PATPA is added to combustion fuel oils such as JP-4, JP-5, JP-7, JP-8, Jet-A, JetA-1 and Jet B. The additive can impact the efficacies of fuel handling systems such as coalescers encountered when handling fuel treated with the additives or when return treated fuel to a general fuel pool. The additives negatively impact the watershed qualities of the fuel and selective removal minimizes the difficulties in handling treated fuel. The removal of the additives is desirable in de-fueling operation s such as for military transport aircraft in order to allow the fuels to be returned to the general fuel pool with out adversely impacting fuel handling systems such as filtration and coalescence elements. It has been found that metal oxides such as MgO and CuO effectively removing the additives from large volumes of hydrocarbon fuel is short time periods in methods that were compatible with existing fuel handling equipment.