Use of monolith catalyst to prepare ethylbenzene

Details Use of monolith catalyst to prepare ethylbenzene Use of monolith catalyst to prepare ethylbenzene

2007-11-20

2007-11-20

Dang, Thuan Dinh (Department: 1764)

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

C585S458000, C585S459000, C585S462000, C585S466000

Reexamination Certificate

active

10998415

ABSTRACT:
Disclosed is an alkylation reactor for preparing ethylbenzene. The reactor comprises a monolith catalyst system that includes a monolith support impregnated or co-formed with a catalyst suitable to catalyze the alkylation of benzene with ethylene. The catalyst may be selected from, for example, zeolites such as beta zeolite and MCM-22 zeolite, and fixed super acids. Also disclosed is a method of preparing ethylbenzene by alkylating a mixture of benzene and ethylene in an alkylation reactor comprising a monolith catalyst system, including a monolith support impregnated or co-formed with a suitable catalyst. In one embodiment the invention provides a convenient means of upgrading an existing reactor that has previously been used for conventional liquid phase alkylations such as those catalyzed by aluminum trichloride. The inventive alkylation method may be effectively and advantageously carried out under critical or near critical conditions, if desired.

REFERENCES:
patent: 4721826 (1988-01-01), Tiltscher et al.
patent: 5081323 (1992-01-01), Innes et al.
patent: 5304698 (1994-04-01), Husain
patent: 5744673 (1998-04-01), Skeels et al.
patent: 6376730 (2002-04-01), Jan et al.
patent: 6759358 (2004-07-01), Huang et al.
patent: 6762149 (2004-07-01), Tonkovich et al.
patent: 6780805 (2004-08-01), Faber et al.
patent: 6787023 (2004-09-01), Mohr et al.
patent: 6797247 (2004-09-01), Becue et al.
patent: 6803015 (2004-10-01), Vance et al.
patent: 0987237 (2003-11-01), None
patent: WO91/16285 (1991-10-01), None
F. Camacho et al.,Alkylation of Benzene with Ethylene Using A1C13 as a Catalyst, Institution of Chemical Engineers, Chem Eng Res Des, vol. 64, Jul. 1986, pp. 273-278.
Giuseppe Gozzelino et al.;Gationic Reactivity of Olefins Present in the C5 Fraction, Ind Eng. Chem. Res., vol. 42, No. 22, 2003, pp. 5437-5439.
Jacob A. Moulijn;Structured Catalysts and Reactors: A Contribution to Process Intensification, pp. 191-226, 25 Figs., 3 Tables, Jan. 2004 To Apr. 11, 2007.

Affiliated with

Also associated with

Rating

Use of monolith catalyst to prepare ethylbenzene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of monolith catalyst to prepare ethylbenzene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of monolith catalyst to prepare ethylbenzene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3814336