Aniline point - petroleum - UOS
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The document discusses aniline point, which is a method used to determine the degree of aromaticity in hydrocarbon mixtures like petroleum products. The aniline point is defined as the lowest temperature at which equal volumes of aniline and the sample become completely soluble. Aromatic structures dissolve more readily in aniline, so the greater the aromatic content, the lower the aniline point. The aniline point indicates the relative contents of aromatic versus paraffinic compounds and can be used to determine properties like diesel index and cetane number.
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Aniline point for petroleum productes
The aniline point test determines the lowest temperature at which equal volumes of aniline and an oil sample fully mix. A lower aniline point indicates a higher aromatic content in the oil sample. The test is suitable for transparent liquid samples with an initial boiling point above room temperature. The aniline point can be used to estimate properties like cetane number, diesel index, and aromatic content, which provide information about the oil sample's combustion quality and suitability for diesel fuel. Extracting the oil sample with furfuraldehyde can lower its aromatic content and thus increase the aniline point.
Aniline point determination by-diar ismail
This document describes an experiment to determine the aniline point of kerosene and diesel samples according to ASTM D611. The aniline point is the minimum temperature at which a hydrocarbon is fully miscible with an equal volume of aniline. In the experiment, 5ml of aniline and sample are mixed in a test tube and heated until a single phase is observed, indicating the aniline point. The kerosene sample had an aniline point of 74°C and diesel was 71°C. These values were used to calculate the diesel index and cetane number of each sample. A higher aniline point corresponds to more paraffinic components and a higher cetane number, indicating better ignition quality for diesel engines.
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Aniline point for petroleum productes
The aniline point test determines the lowest temperature at which equal volumes of aniline and an oil sample fully mix. A lower aniline point indicates a higher aromatic content in the oil sample. The test is suitable for transparent liquid samples with an initial boiling point above room temperature. The aniline point can be used to estimate properties like cetane number, diesel index, and aromatic content, which provide information about the oil sample's combustion quality and suitability for diesel fuel. Extracting the oil sample with furfuraldehyde can lower its aromatic content and thus increase the aniline point.
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This document describes an experiment to determine the aniline point of kerosene and diesel samples according to ASTM D611. The aniline point is the minimum temperature at which a hydrocarbon is fully miscible with an equal volume of aniline. In the experiment, 5ml of aniline and sample are mixed in a test tube and heated until a single phase is observed, indicating the aniline point. The kerosene sample had an aniline point of 74°C and diesel was 71°C. These values were used to calculate the diesel index and cetane number of each sample. A higher aniline point corresponds to more paraffinic components and a higher cetane number, indicating better ignition quality for diesel engines.
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The flash point is the lowest temperature at which a substance can form an ignitable vapor. The fire point is the temperature at which the vapor will continue burning for at least 5 seconds after ignition. The Pensky Martens apparatus is used to determine the flash point and fire point of a substance. It consists of an oil cup heated in an air bath with a thermometer, stirrer, and mechanism to introduce a test flame briefly and relight a pilot flame. The sample is heated while stirring, and the temperature is recorded when a flash or sustained burning is observed.
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This document discusses octane number, which measures a fuel's resistance to engine knocking. It defines octane number and describes how it is measured using the research octane number (RON) and motor octane number (MON) methods. Higher octane fuels allow for higher compression before detonating. The document also outlines factors that decrease octane number and methods for improving it, such as reforming and adding additives. It concludes by discussing latest testing engines and portable octane meters, as well as octane boosters and high-octane fuels like Shell V-Power.
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2. The flash point is the lowest temperature at which a fuel gives off enough vapors to flash but not burn continuously when exposed to an ignition source. The fire point is the temperature at which the fuel will continuously burn for 5 seconds after the ignition source is removed.
3. The experiment finds the flash point of kerosene to be 62°C and diesel to be 66°C, while the fire points are slightly higher at 64°C and 68°C respectively.
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Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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- 1. Ministry of Higher Education and Scientific Research University of Sulaimani College of Science Department of Chemistry Aniline point Presented by: Hazhir esmail Barez Salah
- 2. What's paraffin? Paraffin wax is a soft colorless solid, derived from petroleum, coal , that consists of a mixture of hydrocarbon molecules containing between twenty and forty carbon atoms What's cycloparaffin (napthenes) ? are the monocyclic saturated hydrocarbons, In other words, a cycloalkane consists only of hydrogen and carbon atoms arranged in a structure containing a single ring, and all of the carbon-carbon bonds are single
- 3. What's olefin (alkene) ? is an unsaturated hydrocarbon that contains at least one carbon–carbon double bond What's aromatic? a cyclic (ring-shaped), planar (flat) molecule with a ring of resonance bonds that exhibits more stability than other geometric or connective arrangements with the same set of atoms
- 4. What's aniline? is an organic compound with the formula C6H5NH2 Consisting of a phenyl group attached to an amino group the molecule is aromatic
- 5. Aniline point (AP) is another characteristic of petroleum fractions that indicates the degree of aromaticity of hydrocarbon mixtures Aniline point is defined as the lowest temperature at which equal volumes of aniline and the sample become completely soluble and miscible (form a single phase) Why we use aniline to indicate the degree of aromaticity? Or Why we use aniline for aniline point? aniline is also aromatic Because of their good solubility (like dissolve like) aromatic structures give the lowest aniline values Aniline being an aromatic compound freely mixes with aromatics Method used for determining aniline point of petroleum products is ASTM D 611
- 6. Aniline Point Apparatus Automatic Aniline Point Apparatus Thin Film Aniline Point Apparatus
- 7. As amount of aromatics in a petroleum fraction increase the aniline point decreases. Therefore, the aniline point is a parameter that is highly related to the hydrocarbon types in petroleum fractions. Aniline point 1 aromatic The lower the aniline point, the greater is the content of aromatic compounds in the oil Aniline point Paraffin The higher the aniline point, the greater is the content of paraffinic compounds in the oil Aniline point is used for : 1) Gasoline 2) kerosene 3) gas oil 4) Lub oil samples
- 9. Aniline point is used to determined: 1) Diesel index : A measure of the ignition quality of a diesel fuel calculated from a formula involving the gravity of the fuel and its aniline point 2) Cetane no. : is an indicator of the combustion speed of diesel fuel Aniline point Cetane number
- 10. How to improvement aniline point? Its improved by extraction with furfuraldehyde to decrease aromatic contents in petroleum products Aromatic compounds 1 Efficiency of fuel oil
- 11. شكرا سوپاس