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Gasoline product

a technology of gasoline and product, applied in the petroleum industry, liquid carbonaceous fuels, fuel additives, etc., can solve problems such as atmospheric pollution, and achieve the effect of low undesirable emissions upon combustion

Inactive Publication Date: 2002-11-28
BP AMOCO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004] A relatively higher energy value unleaded gasoline fuel, suitable for combustion in a spark ignition internal combustion engine and having relatively low undesirable emissions upon combustion, is produced by enriching the gasoline fuel with diisopropylbenzene. The diisopropylbenzene enriched unleaded gasoline fuel of this invention contains at least 0.3 weight percent diisopropylbenzene, and preferably contains about 0.3 to about 10 weight percent diisopropylbenzene.

Problems solved by technology

A major environmental problem in the United States as well as other countries of the world is atmospheric pollution caused by the emission of combustion products from automobiles.

Method used

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  • Gasoline product

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Embodiment Construction

[0008] A relatively high energy aromatic blendstock, containing diisopropylbenzene and eminently well suited for making an unleaded gasoline fuel for combustion in an internal combustion engine with spark ignition can be produced as illustrated in the FIGURE. As shown in the flow diagram of the FIGURE, a light reformate from a naphtha reformer which contains benzene is charged to light reformate tower 10 where molecules containing five or six carbon atoms, for example isopentane, are removed and exit in an overhead C.sub.5-stream 14 for further processing or blending. The light reformate preferably contains substantially no aromatic hydrocarbons other than benzene, toluene and xylene. More preferably, a relatively high concentration of benzene and toluene is present in the light reformate stream. The bottoms from light reformate tower 10 flow to light reformate tower 12 as stream 16. Distillation in light reformates tower 12 separates benzene from toluene. Substantially all of the b...

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Abstract

Aromatic blendstocks suitable for use in making an unleaded gasoline fuel for combustion in a spark ignition engine contain substantial amounts of diisopropylbenzene which provides relatively more energy for doing work while producing fewer carbon dioxide emissions as compared to current gasoline blendstocks. Unleaded gasolines made utilizing the foregoing aromatic blendstocks contain at least about 0.3 weight percent diisopropylbenzene, preferably about 0.3 to about 10 weight percent diisopropylbenzene.

Description

[0001] This invention relates to automotive gasoline and blending stocks therefor.BACKGROUND OF INVENTION[0002] When gasoline products are formulated, it is done by mixing various petroleum blending stocks. Different blending stocks have different properties known to refiners, and the properties of a particular gasoline product can be modified by varying the relative amounts of the different petroleum blending stocks that together make up the gasoline product.[0003] A major environmental problem in the United States as well as other countries of the world is atmospheric pollution caused by the emission of combustion products from automobiles. Because of such environmental considerations, refiners continuously strive to produce automotive gasoline with reduced combustion emissions. It has now been found that combustion emissions from automotive gasoline can be reduced by the use of gasoline and gasoline blendstocks having a certain composition that provides a more hydrogen-rich fuel ...

Claims

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Application Information

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IPC IPC(8): C10L1/06C10L1/16
CPCC10L1/06C10L10/02C10L1/1608
Inventor HUFF, GEORGE A. JR.RUNDELL, DOUGLAS N.
Owner BP AMOCO CORP
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