Process for the catalytic conversion of SO.sub.2 to SO.sub.3

Details Process for the catalytic conversion of SO.sub.2 to SO.sub.3 Process for the catalytic conversion of SO.sub.2 to SO.sub.3

1976-02-27

1977-04-05

Vertiz, Oscar R.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423522, C01B 1768, C01B 1776

Patent

active

040162486

ABSTRACT:
A process for the catalytic conversion of SO.sub.2 to SO.sub.3 wherein a main stream of SO.sub.2 -containing gas is branched to form a partial stream which is admixed with an oxygen-containing gas and brought to the temperature of the first contact hurdle or stage. The effluent therefrom is mixed with the remainder of the SO.sub.2 -containing gas and is fed to the second contact hurdle or stage. The oxgyen-containing gas is added in an amount sufficient to reduce the SO.sub.2 concentration so that a temperature can be used in the first stage which corresponds to the SO.sub.2 +1/2 O.sub.2 .revreaction.SO.sub.3 equilibrium.

REFERENCES:
patent: 3005687 (1961-10-01), Uby
patent: 3147074 (1964-09-01), Maurer
patent: 3350169 (1967-10-01), Fenckhoff
patent: 3404955 (1968-10-01), Drechsel et al.
patent: 3443896 (1969-05-01), Furkert et al.
patent: 3671194 (1972-06-01), Roberts
patent: 3803297 (1974-04-01), Suth et al.

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