Alkylbenzene refining process and apparatus

Details Alkylbenzene refining process and apparatus Alkylbenzene refining process and apparatus

2008-03-04

2008-03-04

Caldarola, Glenn A. (Department: 1764)

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By plural serial diverse separations

C203S074000, C203S075000, C203S078000, C203S081000, C203S082000, C202S158000, C202S161000

Reexamination Certificate

active

10974271

ABSTRACT:
Improved processes and apparatus use a finishing column with a mid-cut that provides alkylbenzene products of high purity containing less than about 1 ppmw benzene and less than about 50 ppmw heavies while accommodating enhancements in the efficiencies and the capacities of the distillation train to recover alkylbenzene from alkylation reaction product and while enabling the use of catalytic treatments to reduce olefinic-component content.

REFERENCES:
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patent: 4795550 (1989-01-01), Sachtler et al.
patent: 6031144 (2000-02-01), Campbell et al.
Pujado, Peter R.; “Linear Alkylbenzene (LAB) Manufacture”;Handbook of Petroleum Refining ProcessesEdited by: Robert A. Meyers (New York, McGraw-Hill, 2ndEdition 1996) pp. 1.53-1.66 ISBN 0-07-041796-2 TP690.H34.

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