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US 10,047,021 B2Granted
Method for tuning product composition based on varying types and ratios of feed
AssigneeUop LLC
InventorsStuart Smith, Alakananda Bhattacharyya, Peter K. Coughlin
Life of this patent
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Abstract
A process of tuning a hydrocarbon product composition is described. The process involves selecting paraffins for reaction. The equilibrium constants for reactions of the selected paraffins can be used to select appropriate feed ratios, or an equilibrium composition as function of C/H molar ratio. A selected feed is reacted to obtain the product. Equilibrium product compositions and non-equilibrium product compositions can be obtained using the process.
Claims15
A process of tuning a hydrocarbon product composition comprising:
- selecting a range of paraffins;
- determining a series of equilibrium constants for isomerization and disproportionation reactions of the selected range of paraffins;
- selecting a hydrocarbon product composition with a C/H molar ratio based on the series of equilibrium constants for the selected range of paraffins;
- selecting a hydrocarbon feed with the same C/H molar ratio as the hydrocarbon product composition, the selected hydrocarbon feed comprising at least one Cn alkane, where n=1-200;
- passing the selected hydrocarbon feed into a reaction zone;
- reacting the selected hydrocarbon feed by contacting the selected hydrocarbon feed with a liquid catalyst comprising an ionic liquid and a carbocation promoter in the reaction zone under tuning conditions to form the hydrocarbon product composition, wherein (i) the tuning conditions comprise at least one of a temperature in a range of about 25° C. to about 150° C. and a pressure in a range of about 0 MPa to about 20.7 MPa, (ii) reactions in the reaction zone comprise isomerization and disproportionation, and (iii) the carbocation promoter promotes disproportionation reactions;
- and
- recovering the hydrocarbon product composition, wherein the number of moles of hydrocarbons in said hydrocarbon product composition is equal to the number of moles of hydrocarbons in said hydrocarbon feed.
5 more elements
A process of tuning a hydrocarbon product composition comprising:
- selecting a range of paraffins;
- determining a series of equilibrium constants for isomerization and disproportionation reactions of the selected range of paraffins;
- selecting a hydrocarbon product composition with a C/H molar ratio based on the series of equilibrium constants for the selected range of paraffins;
- selecting a hydrocarbon feed with the same C/H molar ratio as the hydrocarbon product composition, the selected hydrocarbon feed comprising at least one Cn alkane, where n=1-200;
- passing the selected hydrocarbon feed into a reaction zone;
- and
- reacting the selected hydrocarbon feed by contacting the selected hydrocarbon feed with a liquid catalyst comprising an ionic liquid and a carbocation promoter in the reaction zone to form the hydrocarbon product composition, wherein (i) the reactions in the reaction zone comprise isomerization and disproportionation and (ii) the carbocation promoter promotes disproportionation reactions.
4 more elements
Dependencies are inferred from the claim text.