Process and device for withdrawing solid particles and introducing a liquid charge at the lower part of a contact zone

US4444653A · kind A · utility

Assignee

• INSTITUT FRANCAIS DU PETROLE · FR

Inventors

• Jean-Paul Euzen · Dardilly, FR
• Yves Jacquin · Sèvres, FR

Key dates

• Filing date: Feb 2, 1983
• Grant date: Apr 24, 1984
• Expiry date: Feb 2, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G49/14
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Catalysts solid particles are supplied to a vertical reactor for the catalytic treatment of fluid charges, at the upper part of said reactor and are progressively withdrawn from the lower part thereof either continuously or periodically through a funnel having the shape of an inverted cone or an inverted pyramid. At least a portion of the charge is introduced at the lower part of the reactor through orifices above the walls of the funnel at a distance thereof from 1 to 500 times the average size of a catalyst particle.