Processes for making detergent range alkylbenzenes

Details Processes for making detergent range alkylbenzenes Processes for making detergent range alkylbenzenes

2007-02-12

2009-08-18

Dang, Thuan Dinh (Department: 1797)

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

C585S450000, C585S470000, C585S449000, C585S448000

Reexamination Certificate

active

07576247

ABSTRACT:
Spent benzene from a regeneration of a catalyst or solid sorbent in an alkylbenzene complex is subjected to a rough distillation and the benzene fraction from the rough distillation is used a at least a portion of the benzene for a unit operation in the alkylbenzene complex or is passed to a benzene distillation column in the crude alkylbenzene refining section. The processes of this invention can enhance the purity of the alkylbenzene product and can reduce energy consumption per unit of alkylbenzene product or can assist in debottlenecking the crude alkylbenzene refining section of the alkylbenzene complex.

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Pujago,Linear Alkylbenzene(LAB)Manufacture, Handbook of Petroleum Refining Processes, Second Edition 1996, pp. 1.53 to 1.66.

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