Methods for producing fuel compositions with predetermined desirable properties are disclosed. Feedback control can be employed to meter precise amounts of fuel composition components while monitoring fuel composition properties to obtain fuel compositions having specifically defined properties.
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1. A method for making a fuel composition having reduced emissions of one or more of CO, NOx, and hydrocarbons upon combustion, comprising: identifying two or more predetermined properties of the fuel composition for measurement and control;charging two or more hydrocarbon feedstocks into a blending
1. A method for making a fuel composition having reduced emissions of one or more of CO, NOx, and hydrocarbons upon combustion, comprising: identifying two or more predetermined properties of the fuel composition for measurement and control;charging two or more hydrocarbon feedstocks into a blending tank to make a fuel composition mixture, each of the two or more hydrocarbon feedstocks having a first charge rate;determining amounts of each of the two or more hydrocarbon feedstocks charged into the blending tank to make the fuel composition mixture;determining two or more current properties of the fuel composition mixture in the blending tank, the two or more current properties of the fuel composition mixture corresponding to the two or more predetermined properties of the fuel composition;comparing the predetermined properties of the fuel composition with the current properties of the fuel composition mixture using a processor coupled to a memory, the memory comprising historical information relating to amounts and identities of fuel composition components and corresponding fuel composition properties; andadjusting the charge rate of at least one of the two or more hydrocarbon feedstocks to a second charge rate into the blending tank in response to the amounts of each of the two or more hydrocarbon feedstocks charged into the blending tank and comparing the predetermined properties and the current properties to provide the fuel composition having reduced emissions of one or more of CO, NOx, and hydrocarbons upon combustion, wherein adjusting the charge rate is performed using feedback control and the processor, the processor operative to determine adjustments to the charge rate of at least one of the two or more hydrocarbon feedstocks into the blending tank based upon the current properties of the fuel composition mixture and the historical information relating to amounts and identities of fuel composition components and corresponding fuel composition properties. 2. The method of claim 1, wherein the fuel composition has reduced emissions of CO upon combustion. 3. The method of claim 1, wherein the fuel composition has reduced emissions of NOx upon combustion. 4. The method of claim 1, wherein the processor executes program code stored in the memory. 5. The method of claim 2, wherein the two or more predetermined properties of the fuel composition comprise a 50% D-86 distillation point and the paraffin content, and adjusting the charge rate of at least one of the two or more hydrocarbon feedstocks to the second charge rate into the blending tank decreases the 50% D-86 Distillation Point and increases the paraffin content to provide the fuel composition having reduced emissions of CO upon combustion. 6. The method of claim 3, wherein the two or more predetermined properties of the fuel composition comprise Reid Vapor Pressure and 10% D-86 Distillation Point, and adjusting the charge rate of at least one of the two or more hydrocarbon feedstocks to the second charge rate into the blending tank decreases the Reid Vapor Pressure and the 10% D-86 Distillation Point to provide the fuel composition having reduced emissions of NOx upon combustion. 7. The method of claim 1, wherein the fuel composition has reduced emissions of hydrocarbons upon combustion. 8. The method of claim 7, wherein the two or more predetermined properties of the fuel composition comprise olefin content and Research Octane Number, and adjusting the charge rate of at least one of the two or more hydrocarbon feedstocks to the second charge rate into the blending tank decreases the olefin content and increases the Research Octane Number to provide the fuel composition having reduced emissions of hydrocarbons upon combustion. 9. A method for making a fuel composition having reduced emissions of one or more of CO, NOx, and hydrocarbons upon combustion, comprising: identifying two or more predetermined properties of the fuel composition for measurement and control;charging three or more hydrocarbon feedstocks into a blending tank to make a fuel composition mixture, each of the three or more hydrocarbon feedstocks having a first charge rate;determining amounts of each of the three or more hydrocarbon feedstocks charged into the blending tank to make the fuel composition mixture;determining two or more current properties of the fuel composition mixture in the blending tank, the two or more current properties of the fuel composition mixture corresponding to the two or more predetermined properties of the fuel composition;comparing the predetermined properties of the fuel composition with the current properties of the fuel composition mixture using a processor coupled to a memory, the memory comprising historical information relating to amounts and identities of fuel composition components and corresponding fuel composition properties; andadjusting the charge rate of at least one of the three or more hydrocarbon feedstocks to a second charge rate into the blending tank in response to the amounts of each of the three or more hydrocarbon feedstocks charged into the blending tank and comparing the predetermined properties and the current properties to provide the fuel composition having reduced emissions of one or more of CO, NOx, and hydrocarbons upon combustion, wherein adjusting the charge rate is performed using feedback control and the processor, the processor operative to determine adjustments to the charge rate of at least one of the three or more hydrocarbon feedstocks into the blending tank based upon the current properties of the fuel composition mixture and the historical information relating to amounts and identities of fuel composition components and corresponding fuel composition properties. 10. The method of claim 9, wherein the fuel composition has reduced emissions of CO upon combustion. 11. The method of claim 9, wherein the fuel composition has reduced emissions of NOx upon combustion. 12. The method of claim 9, wherein the processor executes program code stored in the memory. 13. The method of claim 10, wherein the two or more predetermined properties of the fuel composition comprise a 50% D-86 distillation point and the paraffin content, and adjusting the charge rate of at least one of the three or more hydrocarbon feedstocks to the second charge rate into the blending tank decreases the 50% D-86 Distillation Point and increases the paraffin content to provide the fuel composition having reduced emissions of CO upon combustion. 14. The method of claim 11, wherein the two or more predetermined properties of the fuel composition comprise Reid Vapor Pressure and 10% D-86 Distillation Point, and adjusting the charge rate of at least one of the three or more hydrocarbon feedstocks to the second charge rate into the blending tank decreases the Reid Vapor Pressure and the 10% D-86 Distillation Point to provide the fuel composition having reduced emissions of NOx upon combustion. 15. The method of claim 9, wherein the fuel composition has reduced emissions of hydrocarbons upon combustion. 16. A method for making fuel composition having reduced emissions of CO upon combustion in an automobile engine, comprising: identifying two or more predetermined properties of the fuel composition for measurement and control;charging two or more hydrocarbon feedstocks and an ethanol feedstock into a blending tank to make a fuel composition mixture, each of the two or more hydrocarbon feedstocks and the ethanol feedstock having a first charge rate;determining amounts of each of the two or more hydrocarbon feedstocks and the ethanol feedstock charged into the blending tank to make the fuel composition mixture;determining two or more current properties of the fuel composition mixture in the blending tank, the two or more current properties of the fuel composition mixture corresponding to the two or more predetermined properties of the fuel composition;comparing the predetermined properties of the fuel composition with the current properties of the fuel composition mixture using a processor coupled to a memory, the memory comprising historical information relating to amounts and identities of fuel composition components and corresponding fuel composition properties; andadjusting the charge rate of at least one of the two or more hydrocarbon feedstocks and the ethanol feedstock to a second charge rate into the blending tank in response to the amounts of each of the two or more hydrocarbon feedstocks and the ethanol feedstock charged into the blending tank and comparing the predetermined properties and the current properties to provide the fuel composition having reduced emissions of CO upon combustion, wherein adjusting the charge rate is performed using feedback control and the processor, the processor operative to determine adjustments to the charge rate of at least one of the two or more hydrocarbon feedstocks and the ethanol feedstock into the blending tank based upon the current properties of the fuel composition mixture and the historical information relating to amounts and identities of fuel composition components and corresponding fuel composition properties. 17. The method of claim 16, wherein one of the two or more predetermined properties is Reid Vapor Pressure. 18. The method of claim 16, wherein one of the two or more predetermined properties is Research Octane Number. 19. The method of claim 16, wherein the two or more predetermined properties of the fuel composition comprise a 50% D-86 distillation point and the paraffin content, and adjusting the charge rate of at least one of the two or more hydrocarbon feedstocks and the ethanol feedstock to the second charge rate into the blending tank decreases the 50% D-86 Distillation Point and increases the paraffin content to provide the fuel composition having reduced emissions of CO upon combustion. 20. The method of claim 16, wherein the two or more predetermined properties of the fuel composition comprise Reid Vapor Pressure and 10% D-86 Distillation Point, and adjusting the charge rate of at least one of the two or more hydrocarbon feedstocks and the ethanol feedstock to the second charge rate into the blending tank decreases the Reid Vapor Pressure and the 10% D-86 Distillation Point to provide the fuel composition having reduced emissions of CO upon combustion.
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이 특허에 인용된 특허 (20)
Scott William R. ; Gibbs Lewis M., Blending of summer gasoline containing ethanol.
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