Integrated process for producing xylenes and high purity...

Details Integrated process for producing xylenes and high purity... Integrated process for producing xylenes and high purity...

2008-06-25

2009-10-13

Dang, Thuan Dinh (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including external recycle loop

C422S236000, C585S470000, C585S475000

Reexamination Certificate

active

07601311

ABSTRACT:
Processes and apparatus are provided that provide high yields of xylenes per unit of aromatic-containing feed while enabling a high purity benzene co-product to be obtained without the need for an extraction or distillation to remove C6naphthenes. The processes of this invention include a transalkylation section and a disproportionation section in the benzene and toluene-containing feed is directly provided to the transalkylation section and in which a benzene recycle loop in the transalkylation section isolates the disproportionation section from C6naphthenes.

REFERENCES:
patent: 3812197 (1974-05-01), Suggitt et al.
patent: 4341914 (1982-07-01), Berger
patent: 5877373 (1999-03-01), Zinnen et al.
patent: 6740788 (2004-05-01), Maher et al.
patent: 2003/0130549 (2003-07-01), Xie et al.
patent: 2004/0186330 (2004-09-01), Kong et al.
patent: 2004/0186332 (2004-09-01), Kong et al.
patent: 2008/0262280 (2008-10-01), Casey et al.
Robert A. Meyers,Handbook of Petroleum Refining Processes, 2d. Edition, 1997, Part 2.
U.S. Appl. No. 12/146,043 filed Jun. 25, 2008, Edward M. Casey et al., USPTO Notice of Allowance mailed Mar. 6, 2009.

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