Patent ID: 6896795
Filing Date: 2005-05-24
Classification: B01J,C10G

Abstract:
1. A process for the production of gasoline with a low sulfur content that comprises at least the following stages: a1) at least a selective hydrogenation of diolefins that are present in the starting gasoline, b) at least one separation of the gasoline that is obtained in stage a1 in two fractions, a light gasoline that is virtually lacking in sulfur and that contains the lightest olefins of the starting gasoline in which the majority of the sulfur-containing compounds that are initially present in the starting gasoline is concentrated, c) at least one treatment of the heavy gasoline that is separated in stage b on a catalyst that makes it possible to decompose or to hydrogenate at least partially unsaturated sulfur-containing compounds present in the gasoline, under conditions where the hydrogenation of the olefins on this catalyst is limited, d) at least one treatment of the heavy gasoline that is obtained in stage c, without eliminating the H