Chemical conversion process in a dispersion
AssigneeBASF SE
InventorsSteffen Tschirschwitz, Joni Joni, Jochen Bürkle, Stefan Bitterlich, Daniel Pfeiffer, Michael Hübner, Nicole Holub
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Abstract
The present invention relates to a chemical conversion process, preferably an isomerization process, for at least one hydrocarbon in the presence of an ionic liquid. The chemical conversion is performed in a dispersion, with dispersion of the hydrocarbon (phase (B)) in the ionic liquid (phase (A)) in the dispersion, the volume ratio of phase (A) to phase (B) being in the range from 2.5 to 4:1 [vol/vol].
Claims16
A process for isomerization of methylcyclopentane to cyclohexane in the presence of an ionic liquid, which comprises performing the isomerization in a dispersion (D1), wherein the dispersion (D1) comprises a phase (B) dispersed in a phase (A), the volume ratio of phase (A) to phase (B) being in the range from 2.5:1 to 4:1, phase (A) comprising greater than 50% by weight of at least one ionic liquid and not more than 10% by weight of hydrocarbons, and phase (B) comprising greater than 50% by weight of at least one hydrocarbon and not more than 1% by weight of ionic liquids;
- wherein the isomerization is conducted in an apparatus, wherein a stream (S1) is discharged from the apparatus, wherein the stream (S1) comprises at least a portion of the dispersion (D1) in which phase (B) is dispersed in phase (A), and phase (B) comprises at least one hydrocarbon which has been prepared in the isomerization, wherein the at least one hydrocarbon present in phase (B) prior to the isomerization consists of methylcyclopentane or a mixture of methylcyclopentane with at least one further hydrocarbon selected from the group consisting of cyclohexane, n-hexane, isohexanes, n-heptane, isoheptanes, and dimethylcyclopentanes;
- wherein a stream (S2) comprising at least 70% by weight of phase (B) is introduced into the stream (S1) to form a stream (S3) comprising a dispersion (D2) in which phase (A) is dispersed in phase (B).
A process for isomerization of methylcyclopentane to cyclohexane in the presence of an ionic liquid, which comprises performing the isomerization in a dispersion (D1), wherein the dispersion (D1) comprises a phase (B) dispersed in a phase (A), the volume ratio of phase (A) to phase (B) being 4:1, phase (A) comprising greater than 50% by weight of at least one ionic liquid and not more than 10% by weight of hydrocarbons, and phase (B) comprising greater than 50% by weight of at least one hydrocarbon;
- wherein the isomerization is conducted in an apparatus, wherein a stream (S1) is discharged from the apparatus, wherein the stream (S1) comprises at least a portion of the dispersion (D1) in which phase (B) is dispersed in phase (A), and phase (B) comprises at least one hydrocarbon which has been prepared in the isomerization, wherein the at least one hydrocarbon present in phase (B) prior to the isomerization consists of methylcyclopentane or a mixture of methylcyclopentane with at least one further hydrocarbon selected from the group consisting of cyclohexane, n-hexane, isohexanes, n-heptane, isoheptanes, and dimethylcyclopentanes;
- wherein a stream (S2) comprising at least 70% by weight of phase (B) is introduced into the stream (S1) to form a stream (S3) comprising a dispersion (D2) in which phase (A) is dispersed in phase (B);
- and
- wherein phase (B) comprises 20% by weight methylcyclopentane, 50% by weight of cyclohexane, 28% by weight of hexane, and 2% by weight of isohexanes, based on the total weight of phase (B).
Dependencies are inferred from the claim text.