US 6,278,034 B1 · Hydrogenation of hydrocarbons

Abstract

A process for hydrogenating long chain hydrocarbons includes continuously feeding a feedstock having long chain hydrocarbons into a slurry bed including a slurry of catalyst particles in a slurrying liquid. The slurry bed is contained in a reaction zone and the feedstock enters the reaction zone at a low level. A hydrogenation component is fed continuously into the slurry bed, at a low level. The hydrogenation component is allowed to react with the feedstock, to hydrogenate the feedstock, as the feedstock and hydrogenation component pass upwardly through the bed. Hydrogenated long chain hydrocarbons are withdrawn from the reaction zone at a high level, as a hydrogenation product. Any excess hydrogenation component is withdrawn from the reaction zone at a high level.

Claims18

Dependent claims

A process for hydrogenating long chain hydrocarbon waxes, which process comprises

continuously feeding a long chain hydrocarbon wax feedstock into a slurry bed comprising a slurry of catalyst particles in a slurrying liquid, with the slurry bed being contained in a reaction zone and the feedstock entering the reaction zone at a low level;
continuously feeding a hydrogenation component into the slurry bed, also at a low level;
allowing the hydrogenation component to react with the feedstock, thereby to hydrogenate the feedstock, as the feedstock and hydrogenation component pass upwardly through the slurry bed;
withdrawing hydrogenated waxes from the reaction zone at a high level, as a hydrogenated product, with the catalyst particles having an Overall Catalyst Performance Factor (‘OCPF’) such that the Saybolt colour of the hydrogenated products is in excess of 15;
and
withdrawing any excess hydrogenation component from the reaction zone at a high level.

3 more elements

A process for hydrogenating long chain hydrocarbon waxes, which process comprises:

continuously feeding a long chain hydrocarbon wax feedstock into a slurry bed contained in a reaction zone, the slurry bed comprising a slurry of catalyst particles in a slurrying liquid, and the feedstock enerting the reaction zone at a low level, the catalyst particles having sufficient strength such that a fraction of the particles having particle sizes of 22 microns and below has a percentual change in particle size of not higher than 12% when subjected to a jet impingement test in which the catalyst particles are impinged against a metal plate by means of an air stream having a pressure of 2 bar;
continuously feeding a hydrogenation component into the slurry bed, also at a low level;
allowing the hydrogenation component to react with the feedstock, thereby to hydrogenate the feedstock, as the feedstock and hydrogenation component pass upwardly through the slurry bed;
withdrawing hydrogenated waxes from the reaction zone at a high level, as a hydrogenated product, with the catalyst particles having an Overall Catalyst Performance Factor (‘OCPF’) such that the Saybolt color of the hydrogenated product is in excess of 15;
and
withdrawing any excess hydrogenation component from the reaction zone at a high level.

3 more elements

Dependencies are inferred from the claim text.

Hydrogenation of hydrocarbons

Life of this patent

Hydrogenation of hydrocarbons

Life of this patent

Abstract

Claims18