Process and plant for refining raw materials containing organic constituents

US9764300B2 · kind B2 · utility

Assignee

• Outotec Oyj · FI

Inventors

• Nikola Anastasijevic · Schongau, DE
• Michael Missalla · Oberursel, DE
• Guenter Schneider · Lorsch, DE
• Andreas Orth · Friedrichsdorf, DE

Key dates

• Filing date: Dec 9, 2014
• Grant date: Sep 19, 2017
• Expiry date: Jan 23, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2208/00752
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A plant for refining raw materials containing organic constituents includes a reactor configured to receive raw materials; a furnace configured to receive solids and fuel from the reactor; a return conduit configured to recirculate hot solids generated in the furnace to the reactor; and a sealing device configured to separate an oxidizing atmosphere of the furnace from an atmosphere of the reactor. The sealing device includes: a downpipe disposed between the furnace and the reactor, the downpipe being configured to withdraw a stream of solids from the furnace; a rising pipe disposed near a bottom of the downpipe and branching off there from to a top, the rising pipe being configured to transport a fluidized stream of solids to the reactor; and a conveying gas supply disposed below the rising pipe, the conveying gas supply being configured to fluidize a stream of solids withdrawn from the furnace.