Process for producing aromatic hydrocarbons of high purity

Details Process for producing aromatic hydrocarbons of high purity Process for producing aromatic hydrocarbons of high purity

1976-03-22

1977-11-15

Davis, C.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208139, 260672R, C10G 3504, C07C 358

Patent

active

040584500

ABSTRACT:
Process for producing aromatic hydrocarbons from gasolines substantially free of mono- and diolefins, comprising an aromizing step in the presence of a catalyst at a temperature from 400.degree. to 600.degree. C under a pressure from 1 to 30 kg/cm.sup.2 followed with the separation of an aromatic cut and of an alkylaromatic cut and a step of hydrodealkylating said alkylaromatic cut by means of hydrogen recovered from the aromizing step, in the presence of a catalyst, at a temperature from 400.degree. to 650.degree. C, under a pressure substantially equal or lower than that of the aromizing step.

REFERENCES:
patent: 2422673 (1947-06-01), Haensel et al.
patent: 3505209 (1970-04-01), Brewer et al.
patent: 3625879 (1971-12-01), Horne et al.
patent: 3901827 (1975-08-01), Sinfelt et al.
patent: 3957686 (1976-05-01), Duhaut et al.
patent: 3959121 (1976-05-01), Antos
patent: 3969221 (1976-07-01), Mitchell et al.

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