Patent · US Active

Process and plant for the thermal treatment of fine-grained solids

US9242221B2 · kind B2 · utility

0Cited by

13References

7Claims

0Family size

Assignee

Outotec Oyj · FI

Inventors

Michael Missalla · Oberursel, DE
Edgar Gasafi · Karlsruhe, DE
Jean Claude Hein · Florstadt, DE
Andreas Orth · Friedrichsdorf, DE
Jean-Paul Nepper · Friedrichsdorf, DE

Key dates

Filing date	Aug 6, 2014
Grant date	Jan 26, 2016
Priority date	—
Expiry date	Aug 6, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23C2900/10002
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A plant for chemical or physical treatment of granular solids includes a fluidized-bed reactor, a solids supply conduit and a central gas supply tube. A cooling tube is disposed relative to the gas supply tube so as to form an annular cooling duct, which is configured to cool the gas supply tube and the process gas and is connected with a coolant source configured to supply a coolant with a temperature of below about 400° C. Outlet openings are disposed in the cooling tube. The fluidized-bed reactor is a Venturi reactor in which the cooling tube opens into a flared portion with the outlet openings connecting the annular cooling duct with the reactor interior. The cooling tube adjoins the gas supply tube and extends substantially parallel to the flared portion of the reactor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.