Heterogeneous alkylation and regeneration of alkylation catalyst

Details Heterogeneous alkylation and regeneration of alkylation catalyst Heterogeneous alkylation and regeneration of alkylation catalyst

1993-04-14

1994-11-15

Konopka, Paul E.

Chemistry of hydrocarbon compounds

Saturated compound synthesis

By condensation of a paraffin molecule with an olefin-acting...

502 38, 502 52, C07C 258, B01J 2938, B01J 3814

Patent

active

053650093

ABSTRACT:
An alkylation process which utilizes a solid alkylation catalyst is disclosed. The catalyst, which has carbonaceous material adsorbed thereto, is regenerated by reacting the adsorbed carbonaceous material. The reaction step is accomplished by heating the catalyst in the presence of ozone to form an ozonated hydrocarbon, wherein the ozonated hydrocarbon includes carbonyl carbons. The ozonated hydrocarbon is removed by desorbing the carbonyl carbons from the solid alkylation catalyst. The carbonaceous material is preferably reacted at a temperature ranging from about 20.degree. C. to 200.degree. C. The ozone is preferably in a gaseous stream at a concentration ranging from about 1 to 50 volume percent. The carbonyl components are preferably desorbed from the heated alkylation catalyst by sweeping the catalyst with a desorption fluid.

REFERENCES:
patent: 3655813 (1972-04-01), Kirsch et al.
patent: 4165296 (1979-08-01), Ishii et al.
patent: 5183789 (1993-02-01), Boyle
Copperthwaite, R. G.; Ozone Reactivation of a Synthetic Zeolite Catalyst for Methanol Conversion; Jan. 1985; 644-645; J. Chem. Soc. Com. 074.
Copperthwaite, R. G.; Regeneration of Pentasil Zeolite Catalysts using Ozone and Oxygen; Jul. 30, 1985; 1007-1016; J. Chem. Soc., 1986.
Hutchings, G. J.; A Comparative Study of Reactivation of Zeolite Y Using Oxygen and Ozone/Oxygen Mixtures; Applied Catalysis, 34 (1987) 153-161.

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