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US 8,133,447 B2Granted
System for making linear alkylbenzenes
AssigneeH R D Corporation
InventorsAbbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory G. Borsinger, Aziz Hassan
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Abstract
Methods and systems for the production of linear alkylbenzenes are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and mixing of one or more olefins (e.g. propylene) with an aromatic. The high shear device may allow for lower reaction temperatures and pressures and may also reduce reaction time with existing catalysts.
Claims20
A system for producing a linear alkylbenzene, the system comprising:
- a high shear device comprising an inlet for an aqueous liquid-liquid stream comprising an olefin and an aromatic, and an outlet for a liquid product dispersion, wherein the outlet of the high shear device is fluidly connected to an inlet of a vessel, and wherein the high shear device is capable of producing the liquid product dispersion comprising an olefin dispersed in an aromatic liquid phase, wherein the dispersed olefin has an average bubble diameter of less than about 5 μm;
- a pump configured for delivering the aqueous liquid-liquid stream to the high shear device via a conduit;
- and
- a vessel downstream the high shear device and configured for maintaining a predetermined pressure and temperature for a catalytic alkylation reaction and comprising an inlet for a stream comprising catalyst and an outlet for a product comprising the linear alkylbenzene produced by reaction of the olefin and the aromatic in the vessel.
1 more element
A system for producing a linear alkylbenzene, the system comprising:
- a high shear device comprising an inlet for a fluid stream comprising an olefin and an aromatic, and an outlet for a product dispersion, wherein the outlet of the high shear device is fluidly connected to an inlet of a vessel, wherein the high shear device is configured to produce a dispersion comprising the olefin dispersed in an aromatic liquid phase, and wherein the dispersed olefin has an average bubble diameter of less than about 5 μm;
- a pump configured for delivering the fluid stream to the high shear device via a conduit;
- a vessel downstream the high shear device and configured to provide a catalytic alkylation reaction of the olefin and the aromatic, the vessel comprising an inlet and an outlet for a product of the catalytic alkylation reaction comprising the linear alkylbenzene;
- and
- an alkylation catalyst.
2 more elements
Dependencies are inferred from the claim text.