Separation, by distillation with acetic acid, of the aromatic hydrocarbons from the fraction of a midcontinent petroleum boiling between 154 and 162 C

Rose, F.W.; White, Joseph D.

doi:10.6028/jres.021.008

Cited by 3 publications

(3 citation statements)

References 25 publications

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“…Similar behavior has been found in azeotropic distillations of other oil fractions with acetic acid [25,26].…”

supporting

confidence: 80%

“…A binary mixture in which the paraffin hydrocarbon is the lower-,; boiling component and the naphthene the higher can usually be readily resolved by azeotropic distillation [23,25,26]. Methyl alcohol was selected as the azeotropic agent here because it was known to form azeotropic mixtures with both naphthenes and paraffins [11,3,24,27,28] and it had served to concentrate naphthenic material from the fraction boiling at 91.8 0 C (see sections II and III).…”

Section: Resolution Of the Materials Boiling Between 90° And 912°mentioning

confidence: 99%

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Isolation of 3-methylhexane, trans-1,2-dimethylcyclopentane, and trans-1,3-dimethylcyclopentane from petroleum

Glasgow¹

1940

J. RES. NATL. BUR. STAN.

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The fraction of a midcontinent pctroleum boiling between 90° and 92° C, from which thc aromatic hydrocarbons previously had been removed, was substantially resolved into its constituent hydrocarbons. Alternation of atmospheric distillation and azeotropic distillation with methyl alcohol separated the material boiling between 90° and 91.2° C into a paraffinic concentrate, containing approximately 75 percent of 2-methylhexane, and a naphthenic concentrate. From the naphthenic concentrate, trans-l,3-dimethylcyclopentane was isolated by crystallization from liquid ethane. A similar procedure separated the material boiling between 91.2° and 92° C into a naphthenic and a paraffinic concentrate. From the naphthenic concentrate, trans-l,2-dimethylcyclopentane was isolated by crystallization from liquid propane plus methane. From the paraffinic concentrate, 3-methylhexane was obtained in the residue from distillations at reduced pressure (215 mm Hg).The boiling point, refractive index, freezing point, density, carbon-hydrogen ratio, and critical solution temperature in aniline were determIned for the three hydrocarbons. Referred to the content of n-heptane as unity, the relative amounts of the three hydrocarbons in this petroleum were estimated to be as follows: trans-l,3-dimethylcyclopentane, 0.21; 3-methylhexane, 0.25; trans-l,2-dimethylcyclopentane, 0.31. CONTENTS Page

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“…Similar behavior has been found in azeotropic distillations of other oil fractions with acetic acid [25,26].…”

supporting

confidence: 80%

Section: Resolution Of the Materials Boiling Between 90° And 912°mentioning

confidence: 99%

Isolation of 3-methylhexane, trans-1,2-dimethylcyclopentane, and trans-1,3-dimethylcyclopentane from petroleum

Glasgow¹

1940

J. RES. NATL. BUR. STAN.

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“…Rose and W11ite [19] have described in detail the separation of the aromatic hydrocarbons from narrow-boiling fractions of petroleum of the range 154 0 to 162 0 C by azeotropic distillation with acetic acid (boiling point 118 0 C).…”

Section: -Diagrams Illustrating the Separation Of Aromatic Hydrocarbomentioning

confidence: 99%

Separation of hydrocarbons by azeotropic distillation

Mair¹,

Glasgow²,

Rossini³

1941

J. RES. NATL. BUR. STAN.

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The following topics are discussed: the principles involved in azeotropic distillation; the substances that form azeotropic mixtures with hydrocarbons; the separation of hydrocarbons by azeotropic distillation, including aromatics from naphthenes and paraffins, naphthenes from paraffins, aromatic hydrocarbons having different numbers and kinds of rings, naphthene hydrocarbons having different numbers of naphthene rings, olefin hydrocarbons, and isomeric hydrocarbons; the differences in the change of boiling point with pressure for the difl"erent types of hydrocarbons; and the benefits of distillation at reduced pressure prior to azeotropic distillation at the normal operating pressure. A general procedure is outlined for separating a given (gasoline or kerosene) fraction of petroleum by means of distillation alone in its several variations (at the normal distilling pressure, at reduced pressure, and with an azeotrope-forming substance).

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Determination of Aromatics in Light Petroleum Distillates By Use of Specific Dispersions between Sodium D Line and Mercury g Line

Thorne¹,

Murphy²,

Ball³

1945

Ind. Eng. Chem. Anal. Ed.

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Separation, by distillation with acetic acid, of the aromatic hydrocarbons from the fraction of a midcontinent petroleum boiling between 154 and 162 C

Cited by 3 publications

References 25 publications

Isolation of 3-methylhexane, trans-1,2-dimethylcyclopentane, and trans-1,3-dimethylcyclopentane from petroleum

Isolation of 3-methylhexane, trans-1,2-dimethylcyclopentane, and trans-1,3-dimethylcyclopentane from petroleum

Separation of hydrocarbons by azeotropic distillation

Determination of Aromatics in Light Petroleum Distillates By Use of Specific Dispersions between Sodium D Line and Mercury g Line

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